HomeMy WebLinkAboutW-Trans Proposal - Multimodal Transportation I505 17th Street, 2nd Floor Oakland, CA 94612 510.444.2600 w-trans.com
SANTA ROSA • OAKLAND • SAN JOSE
September 10, 2019
Ms. Jennifer Rice, PTP
City of San Luis Obispo
919 Palm Street
San Luis Obispo, CA 93401
Proposal to Prepare a Multimodal Transportation Impact Study for the
SLO Airport Hotels Project
Dear Ms. Rice;
W-Trans is pleased to provide this proposal to evaluate potential transportation impacts associated with the
proposed Airport Hotels project to be located at 950 Aero Drive on the west corner of Broad Street and Aero Drive
in the City of San Luis Obispo. The following scope of services is suggested to identify the project’s potential
impacts based on our experience with numerous other transportation studies.
Understanding
We understand that the project as proposed includes the following:
A 63,000 square foot, 100 guest room, three story hotel on one parcel.
A 66,000 square foot, 118 guest room, three story hotel on the other parcel.
Both hotels and guest amenities will be for guests only and not available to the public.
A shared surface parking lot of 218 spaces for both hotels with access from Aero Drive.
Study Area and Periods
The study area will include four roadway segments and 14 study intersections. Conditions during the weekday
a.m. and p.m. peak periods will be documented during four study scenarios:
Existing
Existing plus Project
Cumulative (No Project)
Cumulative plus Project
Per the City’s RFP, the four roadway segments will be:
Table 1 – Study Segments
Study Segment Auto LOS Bike LOS Ped LOS Transit LOS
1. Broad St (SR 227) between Orcutt Rd and Tank Farm Rd X X X X
2. Broad St (SR 227) between Tank Farm Rd and City Limits X X X X
3. Tank Farm Rd between Broad St (SR 227)and S Higuera St X X X X
4. Tank Farm Rd between Broad St (SR 227) and Orcutt Rd X X X X
Per the City’s RFP, the 14 study intersections will be:
Ms. Jennifer Rice, PTP Page 2 September 10, 2019
Table 2 – Study Intersections
Study Intersection Auto LOS Bike LOS Ped LOS Queuing
1. Broad St (SR 227)/Aero Dr X X X X
2. Broad St (SR 227)/Aerovista Pl X X X X
3. Broad St (SR 227)/Airport Dr X X X X
4. Broad St (SR 227)/Tank Farm Rd X X X X
5. Broad St (SR 227)/Industrial Wy X X X X
6. Broad St (SR 227)/Capitolio Wy X X X X
7. Edna Rd (SR 227)/Buckley Rd X X
8. South Higuera St/Buckley Rd* X X
9. Tank Farm Rd/Mindbody Entrance X X X X
10. Tank Farm Rd/Santa Fe Rd X X X X
11. Tank Farm Rd/Long St X X X X
12. Tank Farm Rd/ South Higuera St X X X X
13. US 101 NB Ramps/Los Osos Valley Rd X X
14. US 101 SB Ramps/Los Osos Valley Rd X X
Note: * = future intersection
Tasks
1. The trip generation for the project will be determined based on standard rates published by ITE in Trip
Generation Manual, 10th Edition, 2017. Trip generation estimates shall identify the gross trips generated by
the proposed project, as well as the net external trips (accounting for pass by, internalization or other
reductions). Distribution patterns will be estimated based on 2010 census data for work-to-home
commercial) trips as well as anticipated travel patterns for hotel patrons. This information, along with other
key study assumptions, will be provided to staff in a memorandum of assumptions for review and comment.
Should staff comments result in either a reduction or expansion of the scope, the contract amount would be
adjusted accordingly.
2. A field visit of the project site and study area will be conducted. Specific at tention will be paid to sight distance
for both exiting and entering movements at the site’s driveway and potential conflicts with other driveways.
Appropriate field notes and photos will be taken.
3. Based on the City’s RFP, all but three traffic counts for the study roadway segments and intersections are
assumed to be available from City staff, along with Master Synchro Network files. New a.m. and p.m. peak
period data collection will be conducted when schools are in session, at the following intersections:
Broad St (SR 227)/Aerovista Pl (int. #2)
Tank Farm Rd/Santa Fe Rd (int. #10)
Tank Farm Rd/Long St (int. #11)
4. Existing conditions will be documented based on the counts obtained and observations during the site visit.
These results will be presented in text, a level of service table, figures showing existing lane geometries,
controls and volumes, and calculation output. Intersection delay and auto level of service for each analysis
scenario identified above will be conducted using Synchro analysis software and methodology from the
current edition of the Highway Capacity Manual in effect upon execution of this contract. Vehicle queuing
analysis shall be conducted using Synchro analysis software, and validated or adjusted based on in person
Ms. Jennifer Rice, PTP Page 3 September 10, 2019
observations of intersection queues during each peak hour analysis period. We understand that SimTraffic
microsimulation analysis may be required for oversaturated conditions or other locations where Synchro
is not capable of accurately reflecting intersection observed geometrics/operations.
5. Multimodal roadway segment analysis will be conducted for the two peak hour analysis periods. The analysis
shall be based upon the current version of the Highway Capacity Manual.
6. Future volumes at the study intersection and roadway segments, as developed by the City’s Travel Demand
Model, will be used to project future cumulative operating conditions assuming planned future infrastructure
improvements.
7. Appropriate mitigation measures will be developed for any identified project-related impacts. The project’s
fair share of costs for any recommended mitigation measures will be determined using the methodologies
accepted by City staff.
8. Site access will be analyzed in terms of new roadway configurations, intersections, and driveways. We will
analyze the adequacy of facilities for pedestrians, bicyclists and transit riders. The adequacy of
emergency access will also be assessed.
9. A safety analysis will be conducted, including a review of collision records for the study intersections for any
trends or patterns, and the intersection segment collision rates calculated. Special attention will be paid to
see if the proposed project would contribute to crash factors and how they might be mitigated.
10. A Route 227 Fee Area analysis will be conducted to determine the number of trips added to Buckley Road
along with potential impacts to SR 227.
11. A draft report that provides details of the analysis and findings, together with tables and figures, will be
prepared and submitted for your review.
12. Comments from City staff will be addressed, and a final letter report submitted. Comments that require
analysis not included in the original scope of work will be considered beyond the scope of our contract.
Exclusions – The scope of services includes only those items that are specifically identified above. Any additional
services, such as meetings or hearings, requests for further analysis, multiple rounds of comments, or responding
to peer review comments, if needed would be provided on a time and materials basis after receiving written
authorization for the extra work.
Schedule and Budget
The draft report can be submitted for your comments within approximately eight weeks following authorization
to proceed. The estimated fee is provided in the enclosed table.
Please issue a Purchase Order if you wish to initiate work. This proposal will remain a firm offer for 90 days from
the date of this letter. Thank you for giving us the opportunity to propose on these services.
Sincerely,
Mark Spencer, PE
Senior Principal
MES/SLO011-1.P1-2
Enclosures: Fee Estimate
9/10/2019
Task Principal Associate
Engineer
Assistant
Engineer Admin
Misc
mileage
and traffic
counts)
Total Hours
Traffic Analysis 5 92 46 2 $1,585 145
Reports 9 28 5 20 $0 62
Project Management 1 1 0 1 $0 3
15 121 51 23 $1,585 210
Task $245 $130 $110 $100 LS TOTAL
Traffic Analysis $1,225 $11,960 $5,060 $200 $1,585 $20,030
Reports $2,205 $3,640 $550 $2,000 $0 $8,395
Project Management $245 $130 $0 $100 $0 $475
3,675 $15,730 $5,610 $2,300 $1,585 $28,900
SLO Airport Hotels Project - Transportation Impact Study
W-Trans Fee Estimate
HOURS BY STAFF MEMBER
FEE AT HOURLY RATES INDICATED
These rates are valid for work initiated prior to December 31, 2019. Work initiated after
January 1, 2020, and any subsequent year may be billed at the revised rates
established for that year.