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HomeMy WebLinkAbout05/03/2005, C9 - TRAFFIC SIGNAL INSTALLATION AT BROAD STREET & PACIFIC STREET, INCLUDING TRAFFIC SIGNAL MODIFICATION council �0ng D� May 3,2005 j ac En wa RepoRt '®N..b` c C/ CITY O F SAN LUIS O B I S P O FROM: Jay Walter, Public Works Dire r' j VIA: Timothy Scott Bochum, Deputy Director of Public Works Prepared By: Dario Senor, City Traffic Engineer Jake Hudson, Assistant Engineer- Traffic SUBJECT: TRAFFIC SIGNAL INSTALLATION AT BROAD STREET & PACIFIC STREET, INCLUDING TRAFFIC SIGNAL MODIFICATIONS AT MARSH STREET & SANTA ROSA AND MARSH STREET& OSOS STREET(No. 90440) CAO RECOMMENDATION 1. Approve plans and specifications for "Traffic Signal Installation At Broad Street & Pacific Street, Including Traffic Signal Modifications At Marsh Street & Santa Rosa And Marsh Street & Osos Street, Specification No. 90440". 2. Authorize staff to advertise for bids and authorize the CAO to award contract if lowest responsible bid is within available funding. 3. Transfer $26,125 in traffic signal grant monies from the Bill Roalman Bicycle Boulevard project to the project budget to complete necessary signal interconnect. DISCUSSION As part of the 2001, 2002, & 2003 Annual Traffic Safety Reports, the intersection of Pacific Street and Broad Street was identified as one of the top collision locations in the City. Traffic signal warrant analysis was subsequently conducted at this intersection and it was determined that a traffic signal is warranted and might alleviate the right angle collision pattern at this location. On September 10th 2002, Council, as part of the review of the 2001 Traffic Safety Report, allocated $20,000 for design of the signal at Broad Street and Pacific Street. As part of the 2003/2004 financial plan Council allocated another$120,000 for construction of the signal. In addition to the Broad and Pacific traffic signal project, the intersections of Marsh Street & Santa Rosa Street and Marsh Street & Osos Street were also identified as two of the top collision locations in the City as part of the 2001, & 2002 Annual Traffic Safety Reports. Modifications to traffic signal heads and mast anus were identified as mitigation to the collision patterns at these locations. The project was included in 2003/2004 financial plan under "Traffic Safety Report Implementation" and Council allocated $95,000 for design and construction purposes. When the initial scope and cost estimate for the Broad and Pacific Street Traffic Signal was completed, the project included traffic signal interconnect but only from Marsh Street to Pacific Street. During design it was determined that the installation of the signal at Broad and Pacific would C9-/ Pacific& Broad Authorization to Advertise Bids Page 2 be the best opportunity to complete a final remaining `-`gap" in our signal coordination system (Broad Street from Pacific Street to Buchon Street). Because this cost was not in the initial cost estimate, additional funding for the traffic signals interconnect will be needed. Fortunately, the traffic signal project for the Bill Roalman Trail is now complete and there is leftover traffic signal interconnect grant monies ($26,125) remaining that can be used to fund interconnect for this project. This money will be transferred to the project budget to fund this necessary component of the project. Because these grant funds are to be used exclusively for traffic signal interconnect and phase H of the Bill Roalman Trail does not include any traffic signal interconnect, the re-appropriation of funds will not affect phase H of the Bill Roalman Trail. Project Description This project will include installation of a new traffic signal at Pacific & Broad, minor street reconstruction to improve the roadway integrity for the installation of inductive loop vehicle detectors, and traffic signal interconnect on Broad Street from Buchon Street to Marsh Street. The project also includes traffic signal mast arm and signal head upgrades at Marsh Street & Osos Street and Marsh Street & Santa Rosa. A "Additive Alternative" bid item will be used to solicit bids on the paving portion of the contract. This is being done to gauge the cost effectiveness of this work and because traffic signal work is typically bid using a lump sum bid process. Under the lump sum bid process it would be difficult to determine exact costs of the paving work in comparison to other work being done on the project. CONCURRENCES The San Luis Police Department has reviewed and commented on the 2001, 2002, & 2003 Annual Traffic Safety Reports and concurred with its findings, including the improvements discussed herein. The City Council has reviewed, commented and approved the 2001, 2002, & 2003 Traffic Safety Reports and recommended mitigation measures. FISCAL IMPACT Council, as part of the review of the 2001 Traffic Safety Report, allocated $20,000 for design of the signal at Broad and Pacific Streets. In addition, as part of the 2003/2004 financial plan Council allocated another $120,000 for construction of the signal. Also, as part of the 2003/2004 financial plan the Council allocated $95,000 for design and construction of the traffic signal modifications on Marsh Street at Santa Rosa and Osos. Therefore, to date; $235,000 has been allocated for the completion of these projects. As explained above, when originally scoped the Broad and Pacific signal installation did not anticipate the installation of signal interconnect from Pacific to Buchon. A budget transfer of$26,125 will be made from the leftover signal interconnect grant money in the Bill Roalman Bicycle Boulevard to complete this work. Therefore the total budget for the projects is $261,125. �- Z Pacific&Broad Authorization to Advertise Bids Page 3 Costs to Date Design and preliminary field $ 26,500 work Total Costs to Date $ 26,500 Base Project Signal Construction $ 156,000 Signal Interconnect Construction $ 21,000 Contingencies $ 36,000 Base Project Total $ 213,000 Additive Alternate Construction $ 10,000 Contingencies 2,000 Deductive Alternate Total $ 12,000 Total Construction $ 225,000 Total Project Costs $ 251,500 When budget transfers are complete there will be sufficient funds to cover the costs of completing the project. The lowest responsive bidder will be determined based on the total base project bid, qualifications and submittal of required references. Awarding of the additive alternate will only occur if the base project, additive alternate and contingencies are below total engineer's estimate of $225,000. ALTERNATIVES 1. The Council may wish to defer all construction until a later date. If this project does not proceed,the collision pattern is likely to continue at all locations. 2. The Council may wish to authorize staff to advertise for bids for the construction of the traffic signal at Pacific & Broad and defer the traffic signal modifications at Marsh & Osos and Marsh & Santa Rosa. If these modifications do not proceed, the collision pattern is likely to. continue at those locations. 3. The Council may wish to authorize staff to advertise for bids for the traffic signal modifications at Marsh & Osos and at Marsh & Santa Rosa and defer the construction of the traffic signal at Pacific & Broad. If this signal installation does not proceed, the collision pattern is likely to continue at this location. Project Plans and specifications are available in the Council reading file. I:\ Council Agenda Reporns\2005 agenda reports\Transportation and Development Review (Bochum)\TrafLc Engineering (Senor)\Pacific&BroadBidAuthoriiation.DOC �9 - 3 f l San Luis Obispo County Bicycle Coalition ���`p�E ON IgF9 PO Box 14860 • San Luis Obispo, CA 93406-4860 � s z m RED FILE Adam Fukushima, Executive Director BIC Cl2 COallfl011 MEETING AGENDA Phone: 805-541-3875 DATEAelTEM #��- Email: adamf@slobikelane.org May 3, 2005 COUNCIL _D DIR CAO FIN DIR San Luis Obispo City Council ACAO =;RE CHIEF 990 Palm Street ATTORNEY PW DIR CLERK/ORIG 20LICE CHF San Luis Obispo, CA 93401 L DEP2X H�DS _C DIR C ��� L DIR Dear Members of Council: - �_�— ' DIR I would like to address item C 9 on the consent agenda for this evening's city council meeting regarding the traffic signal installation at Broad Street & Pacific Street., including traffic signal modifications at Marsh Street& Santa Rosa and Marsh Street & Osos Street. The staff report states that the traffic signal project for the Bill Roalman Bicycle Boulevard is complete and that there is $26,125 in traffic signal grant monies that can now be used to fund interconnect at the above listed intersections. Though the traffic signal project may be "complete," as the staff report indicated, the Bicycle Coalition regrets that the traffic signal at the intersection of Santa Barbara Street and Upham Street does not function adequately for cyclists in its present form, especially since the traffic signal serves as the gateway to the Bill Roalman Bicycle Boulevard and the linking mechanism to existing and future segments of the Railroad Safety Trail. For a bike-specific facility, there is presently no bicycle accommodation at this location . In addition, the traffic signal does not present clear instruction on how to cross the street safely into the railroad parking lot. Southbound cyclists leaving the Bicycle Boulevard must decide to ride in the crosswalk(an unsafe practice that is illegal in many parts of California) or cross the street diagonally in the path of motor vehicles. We strongly believe that any plans involving bicycle facilities need to be examined by cyclists. We at the Bicycle Coalition are more than happy to consult on these issues. For instance, I was just in Portland, Oregon, last week, where I noticed how traffic engineers dealt with a very similar situation but in a way that made it much safer for cyclists, pedestrians, and motorists. Portland's intersection of Interstate Avenue and Portland Street features a bicycle only traffic signal, which makes it easier for cyclists to diagonally cross the intersection to access the northbound bicycle lane on Interstate Avenue and to eliminate the conflict between right-turning motorists and eastbound cyclists. Notice how the layout of this intersection is very similar to the ` + I intersection of Upham Street and Santa Barbara Street. To get a green, cyclists must position themselves over the "bike loop"marking on the sidewalk until the bicycle signal turns green. This intersection is a sterling example of how the problem at Santa Barbara Street&Upham Street could be addressed. It would be a safe way to get cyclists heading southbound from Morro Street either across Santa Barbara Street into the railroad parking area or on to the bicycle lane southbound on Santa Barbara Street. Please take a look at the following website: hqp://www.portlandtransportation.or Bicycles/Scramble.htm Below are some illustrations and photos of the intersection. 1 5C) d TO,11 MP � { 9 Q1 '( ;t ori o t CCO mj f if 11,,� A$�-ks 1 OR C f {i 1 "rit1*siG I i 1•� riff t t ,,:jic`J yC. t. +rry.11ti,`i`I _ +L ..?,� J'Y ' ' ..._ _ r All oi • Y "xwyi .r r T �lr�latid r¢7 a'n,�r`'7�1 r�. 7 • r .. .j7 rv`nY1` � F A r :a - rf� 1 If you have any questions or concerns, please feel free to contact us. Thank you for your commitment to making San Luis Obispo a safer and more livable city for bicycles and pedestrians. Best regards, Adam Fukushima, Executive Director San Luis Obispo County Bicycle Coalition CC: City Public Works