HomeMy WebLinkAbout2015 TSRPublic Works and Police Department
September 2016
2015 Annual Traffic Safety Report
ii2015 Traffic Safety Report
September 2016
Table of Contents
EXECUTIVE SUMMARY ...................................................................................... 1
INTRODUCTION .................................................................................................. 2
BACKGROUND ...................................................................................................... 2
MOVING TOWARDS VISION ZERO ........................................................................... 2
MEASURING PROGRESS ....................................................................................... 3
HOW TO NAVIGATE THIS REPORT .......................................................................... 4
CITYWIDE COLLISION TRENDS ........................................................................ 5
INJURY COLLISION TREND ..................................................................................... 5
FATAL COLLISION TREND ...................................................................................... 5
OVERALL COLLISION TREND ................................................................................. 6
PEDESTRIAN COLLISION TREND............................................................................. 7
BICYCLE COLLISION TREND .................................................................................. 7
PEDESTRIAN AND BICYCLE SERIOUS INJURIES AND FATALITIES ................................ 8
HUMAN AND ECONOMIC IMPACT ............................................................................ 8
TRAFFIC ENFORCEMENT MEASURES ........................................................... 10
CITATION TRENDS .............................................................................................. 10
DUI ARRESTS .................................................................................................... 11
CITATIONS BY VEHICLE CODE SECTION 2015 ....................................................... 12
ONGOING ACTIVITIES TO MAKE OUR STREETS SAFER ............................. 13
COMPLETED/PLANNED SAFETY PROJECTS & PROGRAMS ...................................... 13
TRAFFIC SAFETY EDUCATION CAMPAIGNS ............................................................ 14
PERCEPTION OF TRANSPORTATION SAFETY – UTILIZING PUBLIC INPUT ................... 16
2015 HIGH COLLISION RATE LOCATIONS & RECOMMENDATIONS ........... 17
WHERE COLLISIONS ARE OCCURRING ................................................................. 17
MOST COMMON COLLISION TYPES AND FACTORS ................................................. 21
HIGH COLLISION RATE LOCATIONS – PEDESTRIANS .............................................. 24
PEDESTRIAN LOCATION RECOMMENDATIONS ........................................................ 25
PEDESTRIAN LOCATION RECOMMENDATIONS – CALTRANS FACILITIES .................... 26
HIGH COLLISION RATE LOCATIONS – BICYCLES .................................................... 27
BICYCLE LOCATION RECOMMENDATIONS.............................................................. 28
BICYCLE LOCATION RECOMMENDATIONS – CALTRANS FACILITIES .......................... 29
HIGH COLLISION RATE LOCATIONS – ARTERIAL/ARTERIAL INTERSECTIONS ............. 30
ARTERIAL/ARTERIAL INTERSECTIONS RECOMMENDATIONS .................................... 31
HIGH COLLISION RATE LOCATIONS – ARTERIAL/COLLECTOR INTERSECTIONS ......... 32
ARTERIAL/COLLECTOR INTERSECTIONS RECOMMENDATIONS ................................. 32
iii2015 Traffic Safety Report
September 2016
HIGH COLLISION RATE LOCATIONS – ARTERIAL/LOCAL INTERSECTIONS .................. 33
ARTERIAL/LOCAL INTERSECTIONS RECOMMENDATIONS ......................................... 34
ARTERIAL/LOCAL INTERSECTIONS RECOMMENDATIONS – CALTRANS FACILITIES ..... 35
HIGH COLLISION RATE LOCATIONS – COLLECTOR/COLLECTOR INTERSECTIONS ...... 36
COLLECTOR/COLLECTOR INTERSECTIONS RECOMMENDATIONS ............................. 36
HIGH COLLISION RATE LOCATIONS – COLLECTOR/LOCAL INTERSECTIONS .............. 37
COLLECTOR/LOCAL INTERSECTIONS RECOMMENDATIONS ..................................... 37
LOCAL/LOCAL INTERSECTIONS ............................................................................ 38
HIGH COLLISION RATE LOCATIONS – ARTERIAL SEGMENTS ................................... 39
ARTERIAL SEGMENTS RECOMMENDATIONS .......................................................... 40
HIGH COLLISION RATE LOCATIONS – COLLECTOR SEGMENTS ................................ 41
COLLECTOR SEGMENTS RECOMMENDATIONS ....................................................... 41
APPENDIX A – COLLISION ANALYSIS METHODOLOGY
APPENDIX B – 2014 HIGH COLLISION LOCATIONS - STATUS UPDATE
APPENDIX C – 2015 COLLISION DIAGRAMS
List of Figures
Figure 1: 2015 Citywide Traffic Collisions ........................................................... 18
Figure 2: 2015 Citywide Pedestrian Collisions .................................................... 19
Figure 3: 2015 Citywide Bicycle Collisions .......................................................... 20
Figure 4: 2015 High Collision Intersection Locations .......................................... 42
Figure 5: 2015 High Collision Rate Roadway Segments .................................... 43
12015 Traffic Safety Report
September 2016
Executive Summary
The Public Works & Police Departments are pleased to present the 15th cycle of
the City’s annual traffic safety program. The Annual Traffic Safety Program
began in 2002 in an attempt to identify high collision locations within the City. In
addition, the program actively pursues corrective measures that may reduce
collision rates and improve safety within the City. This program has had
continued success with a 58% reduction in citywide
collisions since the program began, despite increasing
traffic volumes.
This effectiveness off the safety program has
continued in 2015 and total collisions are again the
lowest on record, down by 3% from 2014. While
reducing overall collision rates continues to be a key
goal, over time the safety program has evolved to
prioritize focus on reducing the most serious collisions—those that result in
severe injuries or death. Because injury collisions require a police report and
investigation by a peace officer, these reports provide a clearer picture of the
collision circumstances, and can establish a more reliable year-to-year trend.
There was one fatal collision in 2015 involving a motorist DUI and an elderly
pedestrian crossing outside of a crosswalk at Higuera Street & Broad Street.
Injury collisions increased by 9% from the previous year, but remain 29% lower
than in 2002 when the safety program began. Total fatal and severe injury
collisions decreased by 11% from 2014, with a 43% reduction since 2002.
The traffic safety program includes thorough evaluations of bicycle and
pedestrian safety, as these road users are more vulnerable to serious injury or
death from collisions with motor vehicles. Bicycle collision trends have shown a
23% decline from peak levels in 2009; however, 2015 totals show an increase of
12% (6 collisions) from 2014. Except for a significant peak in 2013, annual
pedestrian collisions have been relative static since 2008. In 2015, the number of
pedestrian collisions has remained consistent with the general post-2008 trend.
The following report summarizes the trends in collision history, traffic citations,
and traffic safety measures and identifies high-collision rate locations in 2015. As
in previous Traffic Safety Reports, staff reviewed all high-collision rate
intersections and street segments and has recommended mitigation measures to
increase safety at the top five locations in each category.
Our goal is that the combination of data-driven analysis, appropriate mitigation,
and focused education and enforcement will continue to reduce traffic collision
frequency and severity and improve the safety of our streets for all users.
22015 Traffic Safety Report
September 2016
Introduction
Background
Since its inception in 2002, the annual Traffic Safety Report (TSR) provides an
overview of the City of San Luis Obispo’s efforts to monitor and improve safety
for all road users. Every year, the City prepares a TSR for the previous twelve-
month period with the following specific objectives:
Identify intersections and street segments within the City associated with
the highest overall collision rates. Thoroughly analyze collision patterns in
order to develop potential mitigation measures for the five highest
locations that will reduce the potential for collisions—particularly those
involving severe injuries and/or fatalities, and;
Identify the predominant pedestrian and bicycle collision types and high-
collision locations, and thoroughly analyze collision data and police reports
so as to determine potential mitigation measures for the five highest-rate
collision locations that may reduce the potential for collisions, and;
Report on traffic enforcement efforts, traffic safety education activities, and
evaluate the effectiveness of mitigation measures implemented in the
previous twelve-month period.
The locations mentioned in this report should not be interpreted as a list of
dangerous or “least safe” intersections or streets within the City. The specific
total of collisions for any location for any year is a function of various factors such
as weather patterns, construction, traffic volumes, roadway conditions and driver
habits. Many of these factors are often difficult to identify and are most often
beyond the ability of the engineer to change or control. However, the City's
mitigation program attempts to identify roadway elements that can be modified so
as to make the transportation infrastructure more driver friendly, reduce driver
confusion, promote bicycle and pedestrian
safety and comfort, and limit impact severity.
Moving Towards Vision Zero
Vision Zero is a multi-national traffic safety
movement, first initiated in Sweden, with a
straightforward message: No loss of life is
acceptable. At its core, Vision Zero seeks the
elimination of deaths and serious injuries from
our roadways. Since 1997, Sweden and other
European countries practicing Vision Zero
have been able to reduce their traffic fatalities
by almost 50%.
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In recent years, Vision Zero has gained steam throughout the United States, with
cities such as San Francisco, New York, Portland, Los Angeles and Santa
Barbara adopting Vision Zero Policies and action plans. According to the
National Highway Traffic Safety Administration (NHTSA), motor vehicle traffic
crashes are the number one leading cause of death for people ages 13 through
25 and result in over 30,000 deaths per year in the United States alone. By not
only focusing on reducing overall traffic collisions, but on preventing severe
collisions, particularly to vulnerable users such as pedestrians, bicyclists and
people with disabilities, communities can achieve real live benefits and save
lives.
While the City of San Luis Obispo has not adopted a formal Vision Zero policy,
the City has demonstrated a long-standing commitment towards eliminating
traffic-related fatalities and serious injuries. Through (a) the data-driven analysis
performed in the annual traffic safety program, (b) regular collaboration between
City Public Works and Police Departments to identify priorities for focused traffic
safety enforcement, and (c) ongoing community education and outreach
campaigns, the City is continually striving to improve the safety and efficiency of
transportation facilities for all modes and users.
Measuring Progress
Progress towards improving traffic safety for all road users is measured in the
TSR using the following metrics:
Total collisions, fatalities and serious injuries
Total pedestrian collisions, fatalities and serious injuries
Total bicycle collisions, fatalities and serious injuries
The traffic safety data for these metrics is obtained from traffic collision reports
provided by the San Luis Obispo Police Department. The TSR for a given year
will normally be prepared after City collision statistics become available in April or
May of the following year; thus, the data analyzed in this TSR is for the 2015
calendar year. Collision data is reviewed for each intersection and roadway
segment within the City and entered into the City Public Works Department’s
traffic collision database. Auto, pedestrian and bicycle volumes are then utilized
in conjunction with collision totals to calculate collision rates for all locations in
the City. Considering the collision rates, as well as collision severity, locations
are ranked for each type of intersection and roadway segment. The five highest-
ranked collision locations for each category are then analyzed in further detail
and mitigation measures are presented, where feasible.
Additional discussion regarding the technical analysis methodology applied in
this TSR is provided in the Appendix.
42015 Traffic Safety Report
September 2016
How to Navigate this Report
The remainder of the 2015 TSR is organized into the following sections:
Citywide Collision Trends – Page 5
How safe are San Luis Obispo’s streets? This section describes the state
of traffic safety in the City, discussing trends in traffic collisions from 1999
to 2015.
Traffic Enforcement Measures – Page 10
This section describes traffic enforcement efforts of the City Police
Department, discussing traffic citations, DUI arrests and hazardous driving
trends.
Ongoing Activities to Make our Streets Safer – Page 13
How are we working towards making San Luis Obispo’s streets safer?
This section describes the ongoing efforts to improve the safety of
transportation facilities for all modes of travel within the City.
2015 High Collision Rate Locations & Recommendations – Page 17
What have we learned about traffic safety in 2015? This section describes
the high collision rate intersections and roadway segments for 2015, and
presents potential mitigation recommendations for high-priority locations.
52015 Traffic Safety Report
September 2016
Citywide Collision Trends
Injury collisions are the most accurate representation of City collision trends
because these types of collision are most consistently reported and investigated.
In 2015, injury collisions increased by 9% from 2014. Injury collisions remain
down 29% from 2002 when the safety program began.
Injury Collision Trend
Fatal Collision Trend
It’s difficult to identify a trend in fatal collisions because these types of collisions
are typically sporadic, uncommon, and occur under unusual circumstances. The
single fatal collision in 2015 occurred at the intersection of Higuera and Broad
Streets and involved a DUI motorist and an elderly pedestrian crossing outside of
the marked crosswalk. Combined, the number of fatal and severe injury
collisions decreased by 11% from 2014, with a 43% reduction since 2002.
2332572642953013032722392492332282252101792001922127
10 4
14 7 12
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7 8 8
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Injury CollisionsYear
Severe Inj. &
Fatalities
Non-Severe
Injuries
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4
3
2
11
3
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Fatal CollisionsYear
62015 Traffic Safety Report
September 2016
Overall Collision Trend
In 2015 there were 531 total reported collisions in the City—the lowest total on
record, down 3% from 2014 and down 58% from the introduction of the safety
program.
It should be noted that the Overall Collision chart above does not represent all
collisions that occur in the City—merely all reported collisions occurring on public
streets for which a report is generated. Many collisions are either unreported by
the involved parties, reported by the parties without an officer investigation, or
there is no response to the collision by emergency services. Therefore, the actual
number of collisions may vary between years. A more accurate measure are the
injury and fatal collision trends, as police always respond to collisions where the
reporting party indicates there is an injury.
910102311401256109712071089873866793683598619594570548531500
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Total CollisionsYear
72015 Traffic Safety Report
September 2016
Pedestrian Collision Trend
Despite rising pedestrian volumes, pedestrian collisions have remained relatively
static since 2008, with the exception of an unexplained spike in 2013. In 2015,
the number of pedestrian collisions have returned that the recent trend.
Bicycle Collision Trend
Despite rising bicycle volumes, bicycle collisions have generally been on the
decline in recent years. Bicycle collision trends have shown a 23% decline from
peak levels in 2009; however, in 2015, bicycle collisions totals show an
increase of 12% (6 collisions) from 2014.
24
37
19
41
24
41
26 27
18
25 24 22 24 26
39
24 23
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Pedestrian CollisionsYear
52 46 45 53 55 50 55 61 59 59
73 69 67 69 63
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Bicycle CollisionsYear
82015 Traffic Safety Report
September 2016
Pedestrian and Bicycle Serious Injuries and Fatalities
Over the past five years (2011-2015), 2,862 traffic collisions have been reported
in the City—about 572 per year. Roughly 16% of these collisions involved a
bicyclist or pedestrian. However, as illustrated in the graphic below, 50% of the
collisions resulting in severe injury or death involved a bicyclist or pedestrian.
These trends indicate that bicyclists and pedestrians are overrepresented in
collisions that resulted in severe and life-threatening injuries and there is
continued need for mitigation strategies that target bicycle and pedestrian
collisions.
Human and Economic Impact
Traffic collisions result in direct economic costs to those involved—wages and
productivity losses, medical expenses and legal costs, and motor vehicle
damages—but, this represents only a portion of total costs associated with
collisions. Traffic collisions also have indirect impacts to the families of those
involved, employers and society as a whole. A study by the NHTSA found that
more than 75 percent of collision costs are born by society in the form of
insurance premiums, taxes and congestion-related costs such as travel delay,
excess fuel consumption and lost quality of life associated with deaths and
injuries.
Comprehensive costs include the economic cost components associated with
traffic collisions, but also the indirect societal costs. Using cost estimates by
crash severity published in the American Association of State Highway
Transportation Officials’ (AASHTO) Highway Safety Manual, adjusted to reflect
2015 dollars, the comprehensive costs associated with the 531 citywide traffic
collisions occurring in 2015 were calculated to be more than $25 million.
Comprehensive collision costs for 2015 by collision type are summarized in the
table below.
92015 Traffic Safety Report
September 2016
2015 City of San Luis Obispo Comprehensive Collision Costs
Collision Severity Number of
Collisions
Cost per
Collision Cost
Fatal 0 $5,669,881 -
Disabling Injury 8 $300,591 $2,404,731
Non-Incapacitating Injury 148 $109,811 $16,251,955
Possible Injury 64 $61,904 $3,961,833
Property Damage Only 311 $10,012 $3,113,748
Total 531 $25,732,267
Source: Crash Cost Estimates based on AASHTO’s Highway Safety Manual, 2010. Costs adjusted to
2015 dollars based on Consumer Price Index and Employment Cost Index per Highway Safety
Manual guidance.
102015 Traffic Safety Report
September 2016
Traffic Enforcement Measures
Traffic citations are one method used to promote compliance with the vehicle
code and create a safer environment for road users. The vehicle code includes
many sections for enforcement. Some vehicle code violations are more serious
than others and are designated as “Hazardous Violations”. Vehicle Code
Violations are tracked by the Department of Motor Vehicles, and hazardous
violations are weighted by a point system. All hazardous vehicle code sections
carry at least one point and some carry two points. The point system is used to
assess the driving behavior of motorists and place restrictions on negligent
drivers, which helps make roadways safer by removing drivers with hazardous
driving behavior. The chart below depicts the total citations (hazardous and non-
hazardous) by the Police Department since 1999.
Citation Trends
As shown in the chart above, citation trends can fluctuate from year-to-year.
These trends are not necessarily a direct reflection of overall driving behavior,
but can coincide with the resources and staffing levels of the Police Department. 23942001179122432550896789934176931202098280614741524157114071740573467417114650848022663345435854488743759474686412461955293439955220
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CitationsYear
Hazardous Citations Total Citations
112015 Traffic Safety Report
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DUI Arrests
Driving under the influence (DUI) violations have been a focal point of
enforcement in an effort to reduce injury traffic collisions. Since 1999, the Police
Department has averaged 360 DUI arrests each year. Of those arrests, about
five to ten drivers each year were arrested for felony DUI after being involved in a
collision that causing injury to someone involved. In 2015 the Police Department
arrested 393 people for DUI. Half (50%) of the DUI arrests involved drivers who
were between 18 and 25 years old. 4574803965024103043124123313392482132412563774453930
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DUI ArrestsYear
122015 Traffic Safety Report
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Citations by Vehicle Code Section 2015
The following chart depicts the distribution of vehicle code citations by type for
2015.
Note: Above chart excludes citations related to Driver’s License and Insurance
violations.
Distraction and
Driving Offenses
(§23100-23135)
25%
Speed (§22348-
22413)
25%
Stop Sign (§22450-
22456)
19%
Traffic
Signal/Control
Device Violation
(§21350-21468)
14%
Bicycle Violation
(§21200-21212)
5%
Right side of Roadway
(§21650-21664)
4%
Turning & Signals
(§22100-22113)
4%
Failure to Yield
(§21800-21809)
3%Pedestrian Violation
(§21949-21971)
2%
132015 Traffic Safety Report
September 2016
Ongoing Activities to Make Our Streets Safer
Completed/Planned Safety Projects & Programs
Transportation safety has always been a priority for the City. Each year the
Public Works Department implements traffic safety improvement through a
variety of programs and projects. These improvements are usually stand-alone
projects, but are often included in other City CIP projects or as part of individual
land development projects. below identifies notable traffic safety improvements
that were completed recently or planned for implementation in the near future.
Completed or Planned Transportation Safety Projects
Location Project Description
Traffic Signal Improvements
Marsh & Santa Rosa
Monterey & Grand
Monterey & Santa Rosa*
Install Flashing Yellow Left-Turn Arrows.
Implementation planned for fall of 2016.
Monterey & Santa Rosa* Implemented Advanced Pedestrian Phasing.
Foothill & Broad*
Santa Rosa & Mill*
California & Mill*
Upgraded signal indications from 8” to 12”.
Monterey & Osos* Designs underway for traffic signal upgrades. Construction
anticipated in early 2017.
Citywide Updated traffic signal timings to provide sufficient bicycle
clearance intervals.
Pedestrian & Bicycle Improvements
Highland & Ferrini Install bike slot through median to allow left-turn movements
for bicyclists. To be completed summer 2016.
Higuera & Marsh Lighted Crosswalks Replace downtown lighted crosswalks on Higuera and
Marsh Streets. To be completed fall of 2016.
Higuera & Marsh Improved bike lane channelization for southbound approach
on Higuera.
Santa Rosa Green Bike Lanes* Installed green bike lanes on Santa Rosa Street between
Montalbon and Walnut Streets.
Broad & Orcutt* Installed green bike lane extension through intersection.
California & Marsh Restriped northbound bike lane to meet current City
standards.
Longview Buffered bike lanes added between Hathway and Slack
Street as part of 2016 roadway resurfacing project.
Grand & Hwy 101 On-Ramp Green bike lane to be installed on the southbound approach
of Grand Avenue across the Hwy 101 on-ramp intersection.
To be completed fall of 2016.
Roadway Improvements
Higuera Street, 500-700 Block* Reconfigured on-street parking stalls that do not conform to
current City Standards.
Median at South & Parker* Constructed permanent median along South Street at
Parker Street, replacing the temporary median installed in
2014. Completed in spring of 2016.
142015 Traffic Safety Report
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Location Project Description
Broad & Upham Crosswalk Upgrade uncontrolled crossing at Broad & Upham with
enhanced flashers (rapid rectangular flashing beacons) and
pavement markings.
California & Taft* Design work for a roundabout at California & Taft
intersection to start in the fall of 2016.
Signing & Striping Improvements
Morro & Pacific Two-way stop-control orientation reconfigured.
Broad & Orcutt* Striping on NB approach improved.
Broad & Chorro Reconfigured right-turn-only lane and bike channelization
for northbound Broad traffic.
Chorro & Peach Lane reconfigurations to Chorro Street implemented
between Mill and Walnut. Included extending the bike lane
and adding buffers to the existing bike lane.
Highland Drive Centerline striping added as part of 2016 roadway
resurfacing project.
Jennifer & Ella Installed an all-way-stop sign.
Mill Street Edge lines and Share the Road Markings added as part of
2016 roadway resurfacing project.
Sight Distance Improvements
Cerro Romauldo & Ferrini Installed parking restriction.
Cerro Romauldo & La Canada Installed parking restriction.
Cerro Romauldo & Santa Lucia Installed parking restriction.
Cerro Romauldo & Tassajara Installed parking restriction.
Other Projects/Programs
Fixilini NTM Construction Construct permanent traffic diverter at Fixilini Street & Iris
Street intersection. Completed in spring 2016.
South Chorro NTM Test Project Installed temporary neighborhood traffic circles at Chorro &
Islay, Chorro & Church and Chorro & High. Completed in
winter of 2016. Permanent installation TBD.
Multi-modal Behavior Awareness Campaign* Display ads for SLOTransit to increase
driver/bicyclist/pedestrian safety.
*Project recommended in previous Traffic Safety Report
Additional information regarding the status of safety improvement
recommendations for high-collision locations identified in the 2014 TSR is
provided in the Appendix.
Traffic Safety Education Campaigns
Between City-led efforts and activities led by local partners, such as Bike SLO
County and SLOCOG/Rideshare, there are a multitude of ongoing traffic safety
education and outreach campaigns provided to the community of San Luis
Obispo each year. Key education and outreach activities are summarized below:
Partnership with the California Office of Traffic Safety
152015 Traffic Safety Report
September 2016
A Selective Enforcement Grant funds a full-time DUI officer position. This
officer is utilized specifically for DUI enforcement in an effort to further
reduce the number of alcohol and drug related driving incidents.
Bicycle Rodeo
The City hosts a hands-on bicycle training class targeting youth teaching
bicycle skills & operations.
Pedestrian Halloween Safety Campaign
The City provides reflective Halloween bags with safety tips to local
schools free of cost.
Impaired Driver Offender Classes
City officers attend and supplement DUI offender courses to provide a
unique positive opportunity to discuss, face to face, the impacts of driving
under the influence.
Every Fifteen Minutes Program
The City participates in a multi department and agency event simulating
the psychological effects of student fatalities as a result of traffic collisions.
Child Car Seat Instruction & Assistance
The City provides child safety seat installation and inspection free of cost.
Channel 20 Public Safety Announcements
Bicycle Safety Posters
City of SLO Partnerships:
Bike SLO County
Safety Education Courses
Elementary School Safety Assemblies
Safety Brown Bag Lunch at Participating Businesses
SLOCOG/SLO Rideshare
Safe Routes to School Program
162015 Traffic Safety Report
September 2016
Perception of Transportation Safety – Utilizing Public Input
While the Traffic Safety Program has proven to be a useful tool for identifying
citywide collision trends and prioritizing locations for safety improvement projects,
the process relies on collisions to
occur and be recorded by the City
Police Department. An inherent
limitation with this process is that
locations that may have perceived
safety or comfort issues for road users
are not identified by City staff unless
actual incidents are shown in the
collision data. For locations such as a
crossing where drivers fail to yield to
pedestrians, or a traffic signal where
bicyclists are not given sufficient
green time to comfortably pass
through the intersection, these issues
may not be highlighted unless
residents submit a specific complaint
or an actual collision occurs.
To improve the ability of City staff to appropriately consider locations where the
transportation safety concerns are perceived by the public, the City Public Works
Department is in the process of developing an interactive public input map where
users can pinpoint locations and provide comments describing safety concerns
that they have observed. The New York City Department of Transportation
developed a similar tool as part of their Vision Zero program to solicit public input
on various safety concerns throughout the city. Ultimately, this perception map
would be utilized by the City of San Luis Obispo to complement the existing
Traffic Safety Program to develop a more complete understanding of the
transportation safety and mobility needs off all our road users.
As part of their Vision Zero program, the NYCDOT uses an online
transportation safety public input map to allow citizens to identify
problem locations in the city.
172015 Traffic Safety Report
September 2016
2015 High Collision Rate Locations & Recommendations
Where Collisions Are Occurring
Intersections are the most common location for collisions to occur. As shown in
the figure below, 63% of 2015 collisions in the City occurred at intersections, with
53% of those occurring at signalized intersections. This highlights the importance
of focusing traffic safety efforts on intersections.
All of the traffic collisions reported in 2015 are shown on the map in Figure 1. All
pedestrian and bicycle collisions reported in 2015 are shown on the maps in
Figure 2 and Figure 3, respectively.
High-collision intersections are shown in Figure 4, while high-collision roadway
segments are shown in Figure 5.
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2015 Traffic Safety Report
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Severe Injury Collision
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2 - 3 Collisions
4 - 6 Collisions
7 - 10 Collisions
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212015 Traffic Safety Report
September 2016
Most Common Collision Types and Factors
As shown in the figure below, broadside and rear-end collisions were by far the
most common type of collisions reported in 2015, with each representing 25% of
the total recorded incidents.
As shown below, broadside and rear-end collisions were also the most common
type of injury collision reported in 2015, representing 25% and 22% of total
recorded injury collisions. While collisions involving a bicycle or pedestrian
represent only 16% of total collisions in 2015, they account for 35% of injury
collisions and nearly 63% of severe injury collisions. Thus, mitigating these crash
types offers the greatest potential for reducing the number of serious injury and
fatal incidents.
25% (133) 25% (133)
17% (89)
10% (54)9% (48)
5% (28)4% (22)2% (12)2% (8)1% (3)0.2% (1)
0%
10%
20%
30%
Broadside Rear End Sideswipe Hit Object Vehicle/
Bicycle
Vehicle/
Pedestrian
Head-On Other Bicycle
(Other)
Overturned Not Stated
Type of Collision
Total Collisions by Type
(531 Total)
X% = % of Total Collisions
(Y) = Total Number of Collisions
25% (55)
22% (48)
5% (12)5% (11)
20% (43)
12% (27)
5% (11)
1% (3)
4% (8)
0% (1) 0% (1)
0%
10%
20%
30%
Broadside Rear End Sideswipe Hit Object Vehicle/
Bicycle
Vehicle/
Pedestrian
Head-On Other Bicycle
(Other)
Overturned Not Stated
Type of Collision
Injury Collisions by Type
(220 Total)
X% = % of Total Collisions
(Y) = Total Number of Collisions
222015 Traffic Safety Report
September 2016
The most common factors attributed to recorded collisions in 2015 are
summarized in the table below. Speeding and improper turning movements
represent the most prevalent factors in overall collisions and injury collisions. DUI
collisions represent less than 10% of all reported collisions, but DUI ranks as the
second most prevalent factor attributed to severe injury and fatal collisions.
Primary Collision Factors
Factor Rank %
All Collisions
Improper Turning 1 23%
Unsafe Speed 2 20%
Unsafe Starting or Backing 3 12%
Traffic Signal/Sign Violation 4 10%
DUI 5 9%
Injury Collisions
Improper Turning 1 21%
Unsafe Speed 2 19%
Automobile Right-of-Way Violation 3 11%
Traffic Signal/Sign Violation 4 10%
DUI 5 6%
Severe Injury & Fatal Collisions
Unsafe Speed 1 25%
DUI 2 25%
Improper Turning 3 13%
Unsafe Lane Change 4 13%
Other 5 13%
The table below lists the pedestrian collisions by type recorded in 2015, as well
as the party at fault. As shown in the table, motorist failure to yield during left-turn
movements and pedestrian jaywalking or crossing against the light were the most
frequent types of reported pedestrian collisions. The majority (65%) of pedestrian
collisions were the result of motorist fault.
Pedestrian Collisions by Type
Pedestrian Collision Type No.% Party at Fault %
Motorist Left-Turn 8 35% Driver 65%
Pedestrian Violation
(Jaywalking or Crossing Against Signal) 8 35% Pedestrian 35%
Motorist Right-Turn 4 17%
Motorist Failed to Yield 3 13%
Total 23 100%
232015 Traffic Safety Report
September 2016
The table below lists the bicycle collisions by type recorded in 2015, as well as
the party at fault. Cyclists losing control/hitting fixed objects, motorist right-turn
movements, and cyclists’ failure to yield to motorist’s right-of-way were the most
common types of bicycle collisions reported. About 55% of reported bicycle
collisions were the fault of the bicyclist.
Bicycle Collisions by Type
Bicycle Collision Type No. % Party at Fault %
Cyclist Lost Control 11 20% Driver 45%
Motorist Right-Turn 9 16% Bicyclist 55%
Cyclist Failed to Yield 9 16%
Motorist Left-Turn 7 13%
Wrong-Way Cyclist 5 9%
Cyclist on Sidewalk 4 7%
Motorist Failed to Yield 3 5%
Motorist Overtaking or Sideswipe 3 5%
Motorist Open Door into Path of Cyclist 2 4%
Driveway or Alley 2 4%
Unknown 1 2%
Total 56 100%
242015 Traffic Safety Report
September 2016
High Collision Rate Locations – Pedestrians
Rank
Prev.
Year
Rank
Intersection Control 5 Yr.
Collisions
PH
Veh.
Vol
PH
Ped.
Vol
REV
NA 1 Santa Rosa & Walnut Signal 4 2,606 13 4,009
NA NR Santa Rosa & Olive Signal 4 3,349 39 1,717
NA 2 Foothill & Santa Rosa Signal 3 3,907 121 484
1 NR Laurel & Southwood AWSC 3 1,046 33 475
2 3 Santa Rosa & Monterey Signal 3 2,159 128 253
3 5 Higuera & Broad Signal 5 1,052 469 56
4 NR Chorro & Monterey Signal 3 642 242 40
5 NR Marsh & Chorro Signal 3 1,333 689 29
NA = Intersection under State jurisdiction. Forward findings to Caltrans for consideration
NR = Not Ranked
AWSC = All-way Stop-Control
PH = Peak Hour
REV = Relative Exposure Value
252015 Traffic Safety Report
September 2016
Pedestrian Location Recommendations
Rank Intersection Control 5 Yr.
Collisions
PH
Veh.
Vol
PH
Ped.
Vol
REV
1 Laurel & Southwood AWSC 3 1,046 33 475
Pattern: Turning traffic failing to yield to pedestrians and multiple-threat collisions.
Recommendation: Investigate potential for a lane reduction, or "road diet" for Laurel Lane
(one through lane in each direction and center turn lane) and traffic control modifications at
Laurel/Southwood and Laurel/Augusta intersections. These improvements would reduce
the number of conflict points and shorten crossing distances for pedestrians at intersections.
2 Santa Rosa & Monterey Signal 3 2,159 128 253
Pattern: Turning traffic failing to yield to pedestrians.
Recommendation: Yield to Pedestrian signs installed in April of 2011. Pedestrian lead
crossing interval implemented in spring of 2016. Flashing Yellow Arrows to be installed in
late 2016. Continue to monitor in 2016.
3 Higuera & Broad Signal 5 1,052 469 56
Pattern: Peds vs. left-turns from Broad to Higuera and Higuera to Broad.
Recommendation: Pedestrian warning signs upgraded in 2014, one collision since then.
Explore installation of lead pedestrian crossing interval.
4 Chorro & Monterey Signal 3 642 242 40
Pattern: Peds vs. left-turns from Monterey to Chorro and Chorro to Monterey.
Recommendation: Explore installation of lead pedestrian crossing interval.
5 Marsh & Chorro Signal 3 1,333 689 29
Pattern: Peds vs. left-turns from Chorro to Marsh and Marsh to Chorro.
Recommendation: Install pedestrian warning signs and explore installation of lead
pedestrian crossing interval.
262015 Traffic Safety Report
September 2016
Pedestrian Location Recommendations – Caltrans Facilities
Rank Intersection Control 5 Yr.
Collisions
PH
Veh.
Vol
PH
Ped.
Vol
REV
NA Santa Rosa & Walnut Signal 4 2,606 13 4,009
Pattern: WB right-turning traffic failing to yield to pedestrians in crosswalk.
Recommendation to Caltrans: Investigate feasibility of restricting WB right-turns on red
during ped crossing phase. Consider installation of high-visibility crosswalk markings and
advance stop bar at WB approach.
City Action: Focus speed enforcement and continue to monitor in 2016.
NA Santa Rosa & Olive Signal 4 3,349 39 1,717
Pattern: Turning traffic not yielding to pedestrians and unsafe pedestrian crossings.
Recommendation: Consider implementation of lead pedestrian crossing interval and
installation of high-visibility crosswalk markings with advance stop bar.
City Action: Focus speed enforcement and continue to monitor in 2016.
NA Foothill & Santa Rosa Signal 3 3,907 121 484
Pattern: Turning traffic failing to yield to pedestrians.
Recommendation: Consider implementation of lead pedestrian crossing interval and
installation of high-visibility crosswalk markings with advance stop bar.
City Action: Focus speed enforcement and continue to monitor in 2016.
272015 Traffic Safety Report
September 2016
High Collision Rate Locations – Bicycles
Rank
Prev.
Year
Rank
Intersection Control 5 Yr.
Collisions
PH
Veh.
Vol
PH
Bike.
Vol
REV
1 NR Los Osos Valley & Oceanaire SSSC 3 2,195 10 3,293
NA NR Santa Rosa & Olive Signal 5 3,349 30 2,791
2 3 California & Taft SSSC 6 1,746 19 2,757
3 5 California & 101 N/B Ramps SSSC 5 1,548 17 2,276
NA 1 Santa Rosa & Walnut Signal 3 2,601 18 2,168
NA 4 Santa Rosa & Boysen SSSC 3 2,495 20 1,871
NA 8 Foothill & Santa Rosa Signal 5 3,907 71 1,376
4 6 California & Monterey Signal 5 1,935 40 1,209
5 12 California & Palm SSSC 4 952 32 595
6 9 California & Foothill Signal 5 1,995 88 567
7 NR Broad & Leff SSSC 3 791 21 565
8 NR Chorro & Murray AWSC 3 606 18 505
9 11 California & Mill Signal 3 1,031 47 329
NA = Intersection under State jurisdiction. Forward findings to Caltrans for consideration
NR = Not Ranked
AWSC = All-way Stop-Control
SSSC = Side-Street Stop-Control
PH = Peak Hour
REV = Relative Exposure Value
282015 Traffic Safety Report
September 2016
Bicycle Location Recommendations
Rank Intersection Control 5 Yr.
Collisions
PH
Veh.
Vol
PH
Bike.
Vol
REV
1 Los Osos Valley & Oceanaire SSSC 3 2,195 10 3,293
Pattern: Unsafe maneuvers by bicyclists (unsafe SB left-turn from bike lane across SB travel
lanes, riding bike wrong-way in eastern crosswalk).
Recommendation: Focus enforcement and continue to monitor in 2016.
2 California & Taft SSSC 6 1,746 19 2,757
Pattern: Cyclists vs. SB motorists left-turning onto Taft.
Recommendation: Location approved for roundabout control as part of General Plan. In
addition, Cal Poly Housing EIR identified this as an impacted intersection and established a fair
share cost responsibility for the University. Funding has been allocated for design, which will
begin in fall of 2016. Staff is actively pursuing grants and other funding sources for construction
and will prepare a CIP request in the upcoming budget cycle. Design work for Railroad Safety
Trail Extension through this location initiated in spring of 2016 with construction planned for fall
of 2017.
3 California & 101 NB Ramps SSSC 5 1,548 17 2,276
Pattern: Cyclists vs. WB and SB left-turning motorists.
Recommendation: Green bike lane extensions through intersection installed in summer of
2013. There have been four (4) collisions since. Evaluate feasibility of installing additional
warning signage. Design work for the Railroad Safety Trail Extension through this location was
initiated in spring of 2016 with construction planned for fall of 2017.
4 California & Monterey Signal 5 1,935 40 1,209
Pattern: Cyclists vs. SB and NB motorists turning right. Cyclists and motorists traveling at high
speeds due to downgrades at NB & SB approaches.
Recommendation: Green bike lane extensions through intersection installed in May of 2012.
Since then five (5) collisions were reported. City to refresh green bike lanes in fall of 2016.
Install radar speed feedback signs and additional warning signs at NB & SB approaches.
5 California & Palm SSSC 4 952 32 595
Pattern: Cyclists vs. SB motorists turning right. Cyclists and motorists traveling at high speeds
due to SB downgrade on California.
Recommendation: Install warning signage and green bike lanes through intersection in SB
direction.
292015 Traffic Safety Report
September 2016
Bicycle Location Recommendations – Caltrans Facilities
Rank Intersection Control 5 Yr.
Collisions
PH
Veh.
Vol
PH
Bike.
Vol
REV
NA Santa Rosa & Olive Signal 5 3,349 30 2,791
Pattern: NB vehicle vs. NB bicyclist right-hook collisions.
Recommendation to Caltrans: None at this time.
City Action: Green bike lane extensions through intersections installed along Santa Rosa from
Walnut to Montalban in August of 2015. One bicyclist collision reported since addition of green
bike lanes. While the green pavement markings were recently removed as part of Caltrans
resurfacing project, the City plans to reinstall them in fall of 2016. Continue to monitor in
2016/17.
NA Santa Rosa & Walnut Signal 3 2,601 18 2,168
Pattern: Cyclists vs. NB motorists
Recommendation to Caltrans: None at this time.
City Action: Green bike lane extensions through intersections installed along Santa Rosa from
Walnut to Montalban in August of 2015. One bicyclist collision reported since addition of green
bike lanes. While the green pavement markings were recently removed as part of Caltrans
resurfacing project, the City plans to reinstall them in fall of 2016. Continue to monitor in
2016/17.
NA Santa Rosa & Boysen SSSC 3 2,495 20 1,871
Pattern: Cyclists vs. NB motorists turning left onto Boysen.
Recommendation to Caltrans: Investigate potential treatments to enhance visibility of bicyclists
to drivers making turning movements. Potential options for consideration include additional
warning signage and/or green bike lane extensions through intersection.
City Action: Focused vehicle and bicycle/pedestrian enforcement at this location. Continue to
monitor in 2016.
NA Santa Rosa Foothill Signal 5 3,907 71 1,376
Pattern: Cyclists vs. right-turning vehicles (right-hook collisions).
Recommendation to Caltrans: Investigate potential treatments to enhance visibility and/or
reduce conflicts between bicyclists and drivers making turning movements. Potential options
for consideration include additional warning signage, green bike lane extensions through
intersection, dedicated bicycle signal phasing or intersection geometric modifications.
City Action: Focused vehicle and bicycle/pedestrian enforcement at this location. Continue to
monitor in 2016.
302015 Traffic Safety Report
September 2016
High Collision Rate Locations – Arterial/Arterial Intersections
Rank
Prev.
Year
Rank
Intersection Control Collisions Daily
Volume Rate
1 8 Santa Rosa & Monterey Signal 9 26,656 0.925
2 15 Higuera & Marsh Signal 6 22,367 0.735
3 NR Marsh & Broad Signal 4 15,759 0.695
4 2 California & Monterey Signal 5 21,052 0.651
5 NR Chorro & Higuera Signal 3 13,816 0.595
6 6 Grand & Monterey Signal 3 14,086 0.583
7 12 Higuera & Madonna Signal 7 33,410 0.574
NA 5 Foothill & Santa Rosa Signal 10 48,364 0.566
8 NR Marsh & Johnson Signal 3 16,250 0.506
9 NR Marsh & Osos Signal 3 16,663 0.493
NA 22 101 N/B On/Off Ramp & Madonna Signal 5 32,522 0.421
10 NR Higuera & South Signal 4 27,504 0.398
11 4 Los Osos Valley & Madonna Signal 4 37,183 0.295
NA = Intersection under State jurisdiction. Forward findings to Caltrans for consideration
NR = Not Ranked
Rate = Collision frequency per million vehicles entering the intersection
312015 Traffic Safety Report
September 2016
Arterial/Arterial Intersections Recommendations
Rank Intersection Control Collisions Volume Rate
1 Santa Rosa & Monterey Signal 9 26,656 0.925
Pattern: Left-turning traffic not yielding to opposing vehicles. Right-turning traffic not yielding to
pedestrians.
Recommendation: Yield to Pedestrian signs installed in April of 2011. Advanced Pedestrian
Phasing implemented in spring of 2016. Flashing Yellow Arrows to be installed in late 2016.
Continue to monitor in 2016.
2 Higuera & Marsh Signal 6 22,367 0.735
Pattern: SB red light violations.
Recommendation: Focus speed and red light enforcement. Continue to monitor in 2016.
3 Marsh & Broad Signal 4 15,759 0.695
Pattern: NB & EB red light violations.
Recommendation: Upgrade signal to add poles with mast arms for NB/SB approaches and
potentially extend mast arm for NB approach to improve visibility of indications.
4 California & Monterey Signal 5 21,052 0.651
Pattern: Cyclists vs. SB and NB motorists turning right. Cyclists and motorists traveling at high
speeds due to downgrades at NB & SB approaches.
Recommendation: Green bike lane extensions through intersection installed in May of 2012.
Since then five (5) collisions were reported. City to refresh green bike lanes in fall of 2016. Install
radar speed feedback signs and additional warning signs at NB & SB approaches.
5 Chorro & Higuera Signal 3 13,816 0.595
Pattern: DUI Collisions and pedestrians vs. turning motorists.
Recommendation: Relocate pedestrian signal heads at west crosswalk to adjacent signal poles
to improve visibility of pedestrian indications for motorists and pedestrians. Focus enforcement
and continue monitoring in 2016.
322015 Traffic Safety Report
September 2016
High Collision Rate Locations – Arterial/Collector Intersections
Rank
Prev.
Year
Rank
Intersection Control Collisions Volume Rate
1 2 Osos & Pismo Signal 3 12,230 0.672
2 NR Broad & High SSSC 3 15,394 0.534
3 4 Foothill & Broad Signal 3 18,997 0.433
4 NR Foothill & Chorro Signal 3 20,455 0.402
5 NR Broad & Industrial Signal 4 29,832 0.367
NR = Not Ranked
SSSC = Side-Street Stop-Control
Rate = Collision frequency per million vehicles entering the intersection
Arterial/Collector Intersections Recommendations
Rank Intersection Control Collisions Volume Rate
1 Osos & Pismo Signal 3 12,230 0.672
Pattern: No discernible pattern.
Recommendation: Continue to monitor in 2016.
2 Broad & High SSSC 3 15,394 0.534
Pattern: Broadside collisions due to EB thru/left vs. SB and NB right of way violations.
Recommendation: Evaluate (a) potential for sight distance improvements for WB approach (could
include further parking restrictions and/or curb extension on northwest corner of Broad St.), or (b)
turn restrictions for EB High St. approach.
3 Foothill & Broad Signal 3 18,997 0.433
Pattern: No discernible pattern in 2015. Historic pattern of WB left vs. EB thru right of way violations.
Recommendation: Signal heads were upgraded from 8" indications to 12" indications in April of
2016. Continue to monitor in 2016. If collision pattern continues, consider installation of Flashing
Yellow Arrows.
4 Foothill & Chorro Signal 3 20,455 0.402
Pattern: No discernible pattern in 2015. Historic pattern of EB/WB left-turn right of way violations.
Recommendation: Upgrade 8” to 12” signal indications and evaluate feasibility of Flashing Yellow
Arrows.
5 Broad & Industrial Signal 4 29,832 0.367
Pattern: No discernible pattern.
Recommendation: Continue to monitor in 2016.
332015 Traffic Safety Report
September 2016
High Collision Rate Locations – Arterial/Local Intersections
Rank
Prev.
Year
Rank
Intersection Control Collisions Volume Rate
1 1 Monterey & Osos Signal 3 7,746 1.061
NA 13 Santa Rosa & Olive Signal 9 35,364 0.697
2 8 Higuera & Nipomo Signal 3 12,348 0.666
3 NR Grand & Loomis SSSC 3 12,470 0.659
4 4 California & Taft SSSC 3 16,866 0.487
5* NR Marsh & Garden SSSC 4 10,200 *
NA 11 Santa Rosa & Walnut Signal 5 33,171 0.413
6 5 Los Osos Valley & Calle Joaquin Signal 4 33,730 0.325
7 NR Higuera & Vachell SSSC 3 27,886 0.295
8 7 Los Osos Valley & Froom Ranch Signal 4 38,690 0.283
NA = Intersection under State jurisdiction. Forward findings to Caltrans for consideration
NR = Not Ranked
SSSC = Side-Street Stop-Control
Rate = Collision frequency per million vehicles entering the intersection
*Detailed crash rate cannot be calculated because current traffic volumes not available for the
Garden Street intersection approaches. Based on an estimate of volumes, the crash rate for this
location is anticipated to rank in the top five.
342015 Traffic Safety Report
September 2016
Arterial/Local Intersections Recommendations
Rank Intersection Control Collisions Volume Rate
1 Monterey & Osos Signal 3 7,746 1.061
Pattern: Red light violations in all directions.
Recommendation: Traffic signal improvements planned to add mast arms and enhance
visibility of all indications. Construction is expected in late 2016.
2 Higuera & Nipomo Signal 3 12,348 0.666
Pattern: No discernible pattern.
Recommendation: Continue to monitor in 2016.
3 Grand & Loomis SSSC 3 12,470 0.659
Pattern: WB vs. SB and NB broadside collisions.
Recommendation: Traffic signal warrants are not satisfied. Evaluate additional sight distance
improvements, which could include further parking restrictions along Grand Ave. and/or
bulbouts at intersection corners. Focus speed enforcement and continue to monitor in 2016.
4 California & Taft SSSC 3 16,866 0.487
Pattern: WB vs. NB broadside collisions.
Recommendation: Location approved for roundabout control as part of General Plan. In
addition, Cal Poly Housing EIR identified this as an impacted intersection and established a fair
share cost responsibility for the University. Funding has been allocated for design, which will
begin in fall of 2016. Staff is actively pursuing grants and other funding sources for construction
and will prepare a CIP request in the upcoming budget cycle. Design work for Railroad Safety
Trail Extension through this location initiated in spring of 2016 with construction planned for fall
of 2017.
5 Marsh & Garden SSSC 4 10,200 **
Pattern: SB wrong-way right-turns onto Marsh St.
Recommendation: Garden St. will be reconfigured to one-way NB circulation as part of the
Garden St. Terraces development project. Continue to monitor in 2017 once construction is
completed.
*Detailed crash rate cannot be calculated because current traffic volumes not available for the
Garden Street intersection approaches. Based on an estimate of volumes, the crash rate for this
location is anticipated to rank in the top five.
352015 Traffic Safety Report
September 2016
Arterial/Local Intersections Recommendations – Caltrans Facilities
Rank Intersection Control Collisions Volume Rate
NA Santa Rosa & Olive Signal 9 35,364 0.697
Pattern: SB rear-end collisions and NB right-turning cars vs. NB cyclists.
Recommendation to Caltrans: None at this time.
City Action: Green bike lane extensions through intersections installed along Santa Rosa from
Walnut to Montalban in August of 2015. One bicyclist collision reported since addition of green
bike lanes. While the green pavement markings were recently removed as part of Caltrans
resurfacing project, the City plans to reinstall them in fall of 2016. Continue to monitor in
2016/17.
362015 Traffic Safety Report
September 2016
High Collision Rate Locations – Collector/Collector Intersections
Rank
Prev.
Year
Rank
Intersection Control Collisions Volume Rate
1 NR Chorro & Mill SSSC 3 7,464 1.101
NR = Not Ranked
SSSC = Side-Street Stop-Control
Rate = Collision frequency per million vehicles entering the intersection
In 2015 there was only one Collector/Collector intersection that had 3+ collisions.
Collector/Collector Intersections Recommendations
Rank Intersection Control Collisions Volume Rate
1 Chorro & Mill SSSC 3 7,464 1.101
Pattern: WB vs. SB broadside collisions.
Recommendation: All-way Stop signal warrants not satisfied. Traffic circle was evaluated in 2015,
but was determined to be geometrically infeasible. Striping modifications were implemented in
spring of 2015. Since addition of striping modifications, one collision has been reported at this
intersection. Continue to monitor in 2016.
372015 Traffic Safety Report
September 2016
High Collision Rate Locations – Collector/Local Intersections
Rank
Prev.
Year
Rank
Intersection Control Collisions Volume Rate
1 NR Mill & Osos SSSC 3 5,034 1.633
2 1 Chorro & Peach SSSC 3 7,844 1.048
NR = Not Ranked
SSSC = Side-Street Stop-Control
Rate = Collision frequency per million vehicles entering the intersection
In 2015 there was only two Collector/Local intersections that had 3+ collisions.
Collector/Local Intersections Recommendations
Rank Intersection Control Collisions Volume Rate
1 Mill & Osos SSSC 3 5,034 1.633
Pattern: SB vs. WB.
Recommendation: Refresh SB stop bar and pavement legend to improve driver compliance at
stop sign.
2 Chorro & Peach SSSC 3 7,844 1.048
Pattern: EB and WB vs. NB/SB broadside collisions.
Recommendation: Lane reconfigurations to Chorro St. near this intersection were completed
in October of 2015, with one reported collision since then. Explore relocation of power pole at
northwest corner of intersection, identify speed reduction treatments along Chorro Street, and
investigate possible turn restrictions at EB/WB approaches. Continue to monitor in 2016.
382015 Traffic Safety Report
September 2016
Local/Local Intersections
No Locations Ranked Under this Category
392015 Traffic Safety Report
September 2016
High Collision Rate Locations – Arterial Segments
Rank Prev.
Rank Segment Collisions
Ped-
Bike
Coll.
Vol.
Seg.
Length
(mi.)
Rate Location
1 NR Monterey,
1800-2100 Block 3 0 8,384 0.23 4.27 Grand to US 101 N/B
Ramps
2 NR California,
200-500 Block 6 1 17,509 0.25 3.76 Foothill to Stafford
3 NR Madonna,
200-300 Block 7 3 26,690 0.20 3.58 US 101 S/B Ramps to
El Mercado
4 NR Higuera,
100 Block 3 0 25,638 0.09 3.56 Madonna to South
5 3 Higuera,
500-700 Block 3 1 8,410 0.28 3.44 Nipomo to Broad
6 NR Foothill,
900-1000 Block 4 1 18,947 0.18 3.28 Chorro to Santa Rosa
7 NR Johnson,
2800-3100 Block 3 0 13,607 0.22 2.71 La Cita to Laurel
8 5 Los Osos Valley,
12200-12400 Block 6 0 30,988 0.25 2.16 Auto Park to Calle
Joaquin
9 NR S Higuera,
3200-3900 Block 10 1 17,895 0.77 1.98 Margarita to Tank
Farm
NA 1 Santa Rosa,
100-400 Block 7 1 37,220 0.28 1.81 Murray to Olive
10 4 Broad,
3200-3400 Block 4 2 28,334 0.23 1.69 Orcutt to Rockview
11 NR Tank Farm,
600-700 Block 3 0 20,709 0.25 1.60 Santa Fe to Broad
12 NR Broad,
2400-2900 Block 3 2 28,818 0.19 1.52 Woodbridge to
Lawrence
NA = Segment under State jurisdiction. Forward findings to Caltrans for consideration
NR = Not Ranked
Rate = Collision frequency per million vehicle-miles traveled along segment
402015 Traffic Safety Report
September 2016
Arterial Segments Recommendations
Rank Segment Collisions Volume
Seg.
Length
(mi.)
Rate Location
1 Monterey,
1800-2100 Block 3 8,384 0.23 4.27 Grand to US 101 N/B Ramps
Pattern: No discernable pattern.
Recommendation: Continue to monitor in 2016.
2 California,
200-500 Block 6 17,509 0.25 3.76 Foothill to Stafford
Pattern: Rear-ends and turning movements from driveways on east side of California Blvd.
Recommendation: Focused speed enforcement. Investigate potential parking removal on one side of
California to provide width for center turn lane.
3 Madonna,
200-300 Block 7 26,690 0.20 3.58 US 101 S/B Ramps to El Mercado
Pattern: EB rear-end collisions primarily due to congestion at Madonna/US 101 SB Ramp intersection.
WB rear-end collisions with vehicles making right-turns into private driveways on north side of Madonna.
Recommendation: Evaluate potential Madonna Road corridor improvements as part of proposed San
Luis Ranch development project. Focused speed enforcement and continue to monitor in 2016.
4 Higuera,
100 Block 3 25,638 0.90 3.56 Madonna to South
Pattern: NB sideswipe and NB/SB rear-end collisions due to congestion and unsafe lane changes along
this short segment between Higuera/Madonna and Higuera/South intersections.
Recommendation: General Plan includes capital project to explore potential realignment Madonna Road
at Higuera Street as part of redevelopment of adjacent properties or as part of update to the Mid Higuera
Plan.
5 Higuera,
500-700 Block 3 8,410 0.28 3.44 Nipomo to Broad
Pattern: Parking maneuvers.
Recommendation: Based on recommendations from the 2014 Traffic Safety Report, several parking
stalls were reconfigured along this segment in spring of 2016 to provide consistency with City
Engineering Standards. Continue to monitor in 2016.
412015 Traffic Safety Report
September 2016
High Collision Rate Locations – Collector Segments
Rank Prev.
Rank Segment Collisions
Ped-
Bike
Coll.
Volume
Seg.
Length
(mi.)
Rate Location
1 NR N Chorro,
100-500 Block 3 0 3,853 0.35 6.12 Foothill to Ferrini
2 NR Ramona,
300-600 Block 3 1 4,107 0.36 5.56 Tassajara to Broad
NR = Not Ranked
Rate = Collision frequency per million vehicle-miles traveled along segment
Collector Segments Recommendations
Rank Segment Collisions Volume
Seg.
Length
(mi.)
Rate Location
1 N Chorro,
100-500 Block 3 3,853 0.35 6.12 Foothill to Ferrini
Pattern: No discernable pattern.
Recommendation: Continue to monitor in 2016.
2 Ramona,
300-600 Block 3 4,107 0.36 5.56 Tassajara to Broad
Pattern: WB parking maneuvers and DUI.
Recommendation: Focused enforcement and continue to monitor.
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FIGURE 42015 HIGH CO LLISION IN TERSECTION LOCATIO NS
2015 Tra ffic Safety Report
O
Note : On ly top five ra nked location s (Caltran s facilitie s exclu ded) shown for ea ch inte rse ctio n type.
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Legend
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Tank Farm Rd
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FIGURE 52015 HIGH COLLISION RATE ROADWAY SEGMENTS
2015 Traffic Safety Report
O Legend
Roadway Segment Collisions
High Collision Rate Arterial Segments
(> 1.5 collisions per million vehicle miles traveled)
High Collision Rate Collector Segments
(> 5.0 collisions per million vehicle miles traveled)
!(
High Collision Rate Arterial Segments (Top 5 Ranked)
(> 3.4 collisions per million vehicle miles traveled)
Note: Roadway segments under Caltrans jurisdiction excluded from map.
APPENDIX A
Collision Analysis Methodology
Study Methodology
Collision Data
Reported traffic collisions obtained by the City of San Luis Obispo Police Department
are the basis used by the City Traffic Engineering group to evaluate traffic safety1.
Collisions totals are obtained for each intersection and roadway segment within the
City and entered into the City’s traffic collision database. Collisions occurring on private
property or outside of the City Limits are not included in the dataset. Collision locations
are then grouped by intersection type (i.e. arterial-arterial, arterial-collector, collector-
collector, etc.) and street segment. For locations with at least three (3) total collisions
in the past year or at least three (3) bicycle or pedestrian collisions in the previous five-
year period, collision rates are calculated and collision diagrams are generated.
Based on the collision patterns for the five (5) highest ranked City intersections and
roadway segments, as ranked based on collision rate, mitigation measures are
formulated where a collision pattern can be identified. Mitigation measures for these
sub-categories will be implemented in as projects are designed and funding becomes
available. Intersections and street segments under State (Caltrans) jurisdiction are
included for reference, but are not included in the ranking and mitigation
recommendations for the top five locations by facility type.
Traffic Volumes
Vehicle and pedestrian volumes play an important role in calculating collision
rates for selected locations within the City. Vehicle volume counts were collected
in 2014 as a basis to establish actual conditions in the field environment. Where
volume counts were not available, volumes were estimated based on previous
experience and engineering judgment.
Collision Rate Calculations
Collision rates were calculated using the following formulas:
Intersections: Segments:
RI = N X 1,000,000 RS = N X 1,000,000
V X 365 365 X V X L
1 Note that the data contained within the Public Works Traffic Collision Database may vary from other
sources of collision data such as the California - Statewide Integrated Traffic Records System (SWITRS)
or the City’s Emergency Dispatch Records System. While SWITRS data is similarly derived from official
police collision reports, many times the reports are coded incorrectly due to jurisdictional boundary
issues and/or agency reporting inaccuracies. Likewise, City emergency dispatch may receive a call
regarding a traffic collision but when the dispatched officer arrives, the vehicles have been moved
on or there is no evidence of occurrence. Therefore, statistics derived from this data may be inaccurate
for engineering purposes because no official proof or record exists of the actual collision type.
Where:
RI = Intersection Collision Rate = Collision frequency per million vehicles
entering the intersection.
RS = Segment Collision Rate = Collision frequency per million vehicle
miles traveled along the segment.
N = Number of collisions (collision frequency) of the location.
V = Average daily vehicular volume using the street segment or
intersection.
L = Length of street segment (in miles) being analyzed.
For high-rate bicycle and pedestrian collision locations, collision rates were
calculated as follows:
Pedestrians: Bicycles:
PREV = 5 X N X PHVV BEV = 5 X N X PHVV
PHPV PHBV
Where:
PREV = Pedestrian relative exposure value.
PREV = Bicycle relative exposure value.
N = Number of collisions (5-year collision frequency) of the location.
PHVV = Average peak hour vehicular volume.
PHPV = Average peak hour pedestrian volume.
PHBV = Average peak hour bicycle volume.
The pedestrian and bicycle relative exposure value formula is derived from the
traditional collision rate calculation; however it factors the volume of either the
bicycle or pedestrian with that of vehicles at a given location.
APPENDIX B
2014 High Collision Locations –
Status Update
Rank Collisions Rank CollisionsIncrease/DecreaseSanta Rosa & Walnut 1 3 NA 4Intersection under State Jurisdiction. Forward to Caltrans for study & continue to monitor in 2015.Collision frequency increased in 2015.2014 TSR recommendation remains relevant.Foothill & Santa Rosa 2 3 NA 3 -Intersection under State Jurisdiction. Forward to Caltrans for study. Continue to monitor in 2015.Collision frequency same in 2015.2014 TSR recommendation remains relevant.Monterey & Santa Rosa 3 3 2 3Yield to Pedestrian signs installed in April of 2011. Investigate Flashing Yellow Arrow and Advanced Pedestrian Phasing options as part of minor signal upgrade. Continue to monitor in 2015.Collision frequency same in 2015.Advanced Pedestrian Phasing implemented in spring of 2016. Flashing Yellow Arrows to be installed in late 2016.Higuera & Nipomo 4 3 NR 2Conduct focused DUI enforcement downtown and continue to monitor in 2015.Collision frequency decreased; no pedestrian collisions in 2015.Broad & Higuera 5 5 3 5 -Pedestrian warning signs upgraded in 2014, one collision since. Continue to monitor in 2015.One fatal pedestrian collision in 2015 (DUI driver w/ pedestrian crossing outside of crosswalk). Explore installation of lead pedestrian crossing interval.Santa Rosa & Walnut 1 6 NA 3Intersection under state jurisdiction. Green bike lane extensions thru intersection were installed in July of 2015, monitor as part of 2015 Traffic Safety Report.Collision frequency decreased in 2015, with no bike collisions since installation of green bike lanes in July of 2015. Broad & Orcutt 2 4 NR 2Green bike lane extensions thru intersection were installed in August of 2015. Monitor as part of 2015 Traffic Safety Report.Collision frequency decreased; no bike collisions in 2015.California & Taft 3 6 2 6 -Location approved for roundabout control as part of General Plan. Staff is actively pursuing grant funding and will prepare a CIP request in the upcoming budget. Also, grant funding for Railroad Safety Trail Extension thru this location approved, work expected to begin in Spring of 2016.No bike collisions in 2015, but five-year total remains unchanged from 2014 TSR. Design for new roundabout to begin in 2016, but funding for construction has yet to be secured. Railroad Safety Trail Extension through this location in design phase with construction planned for fall of 2017.Santa Rosa & Boysen 4 3 NA 3 -Intersection under State Jurisdiction. Forward to Caltrans for study. Continue to monitor in 2015.One bike collision in 2015; five-year total remains same as 2014. 2014 TSR recommendation remains relevant. 101 N/B On/Off Ramp & California5434Intersection under state jurisdiction. Green bike lane extensions thru intersection were installed in Summer of 2014, monitor as part of 2015 Traffic Safety Report.One bike collision in 2015; five-year total remains same as 2014. Evaluate feasibility of installling additional warning signage. Railroad Safety Trail Extension through this location in design phase with construction planned for fall of 2017.California & Foothill 1 9 NR 2 Focus speed enforcement and continue to monitor in 2015. Collision frequency decreased in 2015.California & Monterey 2 7 4 5 Continue to monitor in 2015.Collision frequency decreased in 2015. Reinstall green bike lanes and explore installation of radar speed feedback signs and additional warning signs at NB & SB approaches.Broad & Orcutt 3 10 NR 2Striping on NB approach improved in August 2015. Focus speed enforcement and continue to monitor in 2015.Collision frequency significantly decreased in 2015. 2014 High Collision Locations - Status UpdateArterial/Arterial IntersectionsPedestrian Intersections*LocationStatus2014 TSR RecommendationBicycle Intersections*2014 2015
Rank Collisions Rank CollisionsIncrease/Decrease2014 High Collision Locations - Status UpdateLocationStatus2014 TSR Recommendation2014 2015Los Osos Valley & Madonna 4 10 11 4 Continue to monitor in 2015. Collision frequency significantly decreased in 2015. Foothill & Santa Rosa 5 13 NA 10Provide Caltrans with collision data and recommend the State implement advance "signal ahead" flashing warning beacons.Collision frequency decreased in 2015. Recommendation from 2014 TSR recommendation remains relevant.California & Mill 1 3 NR 2 Upgrade 8" signal indications to 12" and continue to monitor in 2015.Collision frequency decreased in 2015. Signal indications upgraded to 12" in 2016.Osos & Pismo 2 3 1 3 - Continue to monitor in 2015.Collision frequency remains consistent. No discernible pattern.Continue to monitor in 2016.Madonna & Oceanaire 3 5 NR 2 Continue to monitor in 2015. Collision frequency decreased in 2015.Broad & Foothill 4 3 3 3 - Upgrade 8" signal indications to 12" and continue to monitor in 2015.Collision frequency remains consistent. Signal indications upgraded to 12" in April of 2016. If pattern continues, consider installation of Flashing Yellow Arrows.Mill & Santa Rosa 5 3 NR 1 Upgrade 8" signal indications to 12" and continue to monitor in 2015.Collision frequency decreased in 2015. Signal indications upgraded to 12" in 2016.Monterey & Osos 1 5 1 3Reconstruct signal with mast arms to increase visibility of indications. Project is funded as part of current CIP, construction is expected in 2016.Collision frequency decreased in 2015. Signal improvements planned to add mast arms and enhance visibility of all indications. Construction expected in late 2016.Monterey & Morro 2 3 NR 1 Continue to monitor in 2015. Collision frequency decreased in 2015.Marsh & Morro 3 4 NR 2 Continue to monitor in 2015. Collision frequency decreased in 2015.California & Taft 4 6 4 3Location approved for roundabout control as part of General Plan. Staff is actively pursuing grant funding and will prepare a CIP request in the upcoming budget. Also, grant funding for Railroad Safety Trail Extension thru this location approved, work expected to begin in Spring of 2016.Collision frequency decreased in 2015. Design for new roundabout to begin in 2016, but funding for construction has yet to be secured. Railroad Safety Trail Extension through this location in design phase with construction planned for fall of 2017.Calle Joaquin & Los Osos Valley5106 4Intersection being reconfigured as part of the LOVR Interchange Project. Continue to monitor after construction is complete.Collision frequency decreased in 2015. LOVR Interchange Project completed in 2016. Continue to monitor.Arterial/Collector IntersectionsArterial/Local IntersectionsCollector/Collector IntersectionsNo Locations Ranked Under this Category in 2014.
Rank Collisions Rank CollisionsIncrease/Decrease2014 High Collision Locations - Status UpdateLocationStatus2014 TSR Recommendation2014 2015Chorro & Peach 1 4 2 3Lane reconfigurations to Chorro Street near this intersection were completed in 2015. Continue to monitor.Collision frequency decreased slightly in 2015. Continue to explore relocation of power pole at northwest corner of intersection, identity speed reduction treatments along Chorro Street, and investigate possible turn restrictions at EB/WB approaches. Continue to monitor in 2016.Santa Rosa, 200-600 Block(Oak to Walnut)18NA7Rear-end collision pattern. Interchange planned for upgrade to address congestion as part of City General Plan and Regional Transportation Plan. Intersections under state jurisdiction. Forward findings to Caltrans and continue to monitor.Collision frequency generally consistent along this segment. 2014 TSR recommendation remains relevant.Foothill, 1000-1200 Block(Santa Rosa to California)212NR-Driveway maneuvers primary collision pattern. Work with property management companies to distribute safety flyers for residents of housing complexes along corridor.Collision frequency decreased in 2015. Higuera, 500-700 Block(Nipomo to Broad)3653Parking maneuvers primary collision pattern. Update any parking stalls that do not conform to current City Standards.Collision frequency decreased in 2015. Parking stalls reconfigured on 500 Block of Higuera in spring of 2016.Broad, 2900-3200 Block(Sweeny to Rockview)47105Rear-end collision pattern. Pursue funding for and implementation of Broad St. Median, signalized Intersections, and Victoria Ave. Extension as adopted under the South Broad Street Area Plan. Apply access management practices for new development projects along corridor.Collision frequency decreased in 2015. 2014 TSR recommendation remains relevant.LOVR, 12000 Block(NB 101 Ramps to Froom)5138 7Rear-end collisions primary pattern. No recommendation due to construction activities. Continue to monitor in 2015.Collision frequency decreased on 2015.NA = Location under State jurisdiction. Not assigned a ranking in 2015 TSR, but included for reference purposes.NR = Not Ranked*For Pedestrian and Bicycle Intersections, five-year collision total listed.No Locations Ranked Under this Category in 2014.Collector/Local IntersectionsLocal/Local IntersectionsNo Locations Ranked Under this Category in 2014.Arterial SegmentsCollector Segments
APPENDIX C
2015 Collision Diagrams
Pedestrian Intersections
SANTA ROSA & WALNUT
2011 - 2015
4 Crashes Pedestrian Injured
[121213009]
[140312026]
[141209011][150714029](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
SANTA ROSA & OLIVE (1)
2011 - 2015
3 Crashes Pedestrian Intersection
[130913058]
[140320027]
[151211082]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
SANTA ROSA & FOOTHILL
2011 - 2015
3 Crashes Pedestrian Injured
[121121049][130205031][141206081](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
LAUREL & SOUTHWOOD
2011 - 2015
3 Crashes Pedestrian Injured
[120529056]
[151125060]
(1) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
SANTA ROSA & MONTEREY
2011 - 2015
3 Crashes Pedestrian Injured
[120119061]
[130208016]
[150503059]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
BROAD & HIGUERA
2011 - 2015
5 Crashes Pedestrian Injured
[111202048][130510071][130814062][141126033][150619068]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
CHORRO & MONTEREY
2011 - 2015
3 Crashes Pedestrian Injured
[110624042][130917078]
[140120049]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
marsh & CHORRO
2011 - 2015
3 Crashes Pedestrian-Total
[110824028]
[141031091]
[150209042]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/22/2016
Crash Magic Online
Bicycle Intersections
LOS OSOS VALLEY & OCEANAIRE
2011 - 2015
3 Crashes Bicyclist involved with Motorist
[111125038][120126023][150506068]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
SANTA ROSA & OLIVE (1)
2011 - 2015
6 Crashes Bicyclist at Intersection
[110518021][120814056][120925012][130705043][130924026][151013031](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
CALIFORNIA & TAFT
2011 - 2015
6 Crashes Bicyclist involved with Motorist
[110125007][111116017][120621035][131108017][140127009][141023082](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
CALIFORNIA & 101 N/B ON/OFF RAMP
2011 - 2015
5 Crashes Bicyclist Injured
[130124051][140710018][141107025][150121040][151012016](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
SANTA ROSA & WALNUT
2011 - 2015
3 Crashes Bicyclist at Intersection
[110118053][110424009][140108011](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
SANTA ROSA & BOYSEN
2011 - 2015
5 Crashes Bicyclist-Total
[110914054][120814061]
[141107063]
[150212051][150711056](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/2/2016
Crash Magic Online
FOOTHILL & SANTA ROSA
2011 - 2015
4 Crashes Bicyclist at Intersection
[121213062][130921069]
[140411033][150613067](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 9/13/2016
Crash Magic Online
CALIFORNIA & MONTEREY
2011 - 2015
5 Crashes Bicyclist-Total
[130528068][130911013][140117049][150205021][151015057](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 9/14/2016
Crash Magic Online
PALM & CALIFORNIA
2011 - 2015
4 Crashes Bicyclist-Total
[130522016][130731050][141023065][150130042](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 9/14/2016
Crash Magic Online
Arterial/Arterial Intersections
SANTA ROSA & MONTEREY
2015
9 Crashes Within 75 ft from Intersection
[150503059][150508088][150704038][150718028]
[1507220055]
[150730057][151204105][151210072][151211099]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
HIGUERA & MARSH
2015
6 Crashes Within 75 ft from Intersection
[150308018][150321008][150329023]
[150425037][150529048][151211030]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
MARSH & BROAD
2015
4 Crashes Within 75 ft from Intersection
[150623041]
[150904085]
[151016007][151226021](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
MONTEREY & CALIFORNIA
2015
5 Crashes Within 75 ft from Intersection
[150205021][150513051][150618025][151010094][151015057](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
HIGUERA & CHORRO
2015
3 Crashes Within 75 ft from Intersection
[150329064][150725035][150926088](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
Arterial/Collector Intersections
PISMO & OSOS
2015
3 Crashes Within 75 ft from Intersection
[150205078][150911086][151105071]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
BROAD & HIGH
2015
3 Crashes Within 75 ft from Intersection
[150226084]
[150904069]
[151203072]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
FOOTHILL & BROAD
2015
3 Crashes Within 75 ft from Intersection
[150109037][150323066]
[150330008]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
FOOTHILL & CHORRO
2015
3 Crashes Within 75 ft from Intersection
[150128063][150220072]
[150504079]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
BROAD & INDUSTRIAL (1)
2015
4 Crashes Within 75 ft from Intersection
[150116072]
[150125054][151012017](1) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
Arterial/Local Intersections
MONTEREY & OSOS
2015
3 Crashes Within 75 ft from Intersection
[150330035][150331087]
[151012047]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
HIGUERA & NIPOMO
2015
4 Crashes Within 75 ft from Intersection
[150102035][150306056][150917040][151031057](0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
SANTA ROSA & OLIVE (1)
2015
9 Crashes Within 75 ft from Intersection
[150309055][150401034][150406036][150413015][150505075][150609038][151013031][151023057]
[151211082]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
GRAND & LOOMIS
2015
3 Crashes Within 75 ft from Intersection
[150308062]
[150927044]
[151230025]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
CALIFORNIA & TAFT
2015
3 Crashes Within 75 ft from Intersection
[150203040][150415037]
[150908058]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
MARSH & GARDEN
2015
4 Crashes Within 75 ft from Intersection
[150327057][150330059]
[150619065]
[151118075]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
Collector/Collector Intersections
CHORRO & MILL
2015
3 Crashes Within 75 ft from Intersection
[150115048]
[150512058]
[151124048]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
Collector/Local Intersections
MILL & OSOS
2015
3 Crashes Within 75 ft from Intersection
[15033008]
[150709065]
[151017073]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online
CHORRO & PEACH
2015
3 Crashes Within 75 ft from Intersection
[150501042]
[150915068]
[151025048]
(0) crashes could not be placed in this schematic
Straight
Stopped
Unknown
Backing
Overtaking
Sideswipe
Parked
Erratic
Out of control
Right turn
Left turn
U-turn
Pedestrian
Bicycle
Injury
Fatality
Nighttime
DUI
Fixed objects:
General Pole
Signal Curb
Tree Animal
3rd vehicle
Extra data
Pd' Programming, Inc. 8/1/2016
Crash Magic Online