Report on County Activities pertaining to Bicycling
Member Kobayashi stated Santa Clara County staff will be providing presentations with regard to future, present, and past projects.
Ananth Prasad, Associate Civil Engineer, provided a PowerPoint Presentation regarding Adaptive Signal Timing for Bicycles highlighting: 1) a County of Santa Clara Map depicting County Expressways, County pockets, and three airports; 2) Background Information; 3) Map depicting Typical Bicycle Detection Locations & Markings at Expressway Intersections; 4) Graph showing the Top 10 Bicycle Volume Intersection; 5) Project Goals – Project Intersection Selection (candidate intersection with exclusive bicycle areas, Project Intersection Selection (not suitable for the project due to absence of exclusive bicycle areas on cross street, and Map of Signalized Intersections with Bicycle Detection; 6) Project Photos – Bicycle Detection, Why Special Timing for Bicycles, Types of Bicyclists, Types of Bicyclist Arrivals, Bicycle Speed, Bicycle Signal Timing Calculations, Bicycle Signal Timing, and Controller Limitations; 7) Flow Chart Showing Three Scenarios; and, 8) Conclusion.
Mr. Prasad provided a video presentation regarding adaptive signal timing for bicycle projects to provide additional green light time for bicyclists to ride safely. Mr. Prasad advised that for this presentation, the speed of 12 feet per second was used but once other studies determine the correct speed, the speed may be increased.
Mr. Prasad noted that not all controllers support the technology in the presentation, therefore, it is important for the County of Santa Clara to understand what they are able to support and accommodate bicycle timing.
Mr. Prasad advised that the Projects Awards received for the presentation provided to the BPAC Members are the TRANNY Award and American Public Works Association (APWA) Award.
Mr. Prasad noted that the Next Steps for County Roads and Airports are to install bicycle sensors at additional expressway intersections and educate public/bicyclists of the technology.
Member Swent inquired if copies of the video are available. Mr. Prasad advised that the version presented to the BPAC is in draft form and when finalized, the video will be available.
Member Swent expressed concern that there are occasional situations wherein a bicycle arrives just as the light is turning yellow. It is most dangerous because the bicycle is not able to stop before or in the middle of the intersection, does not have time to cross an expressway, and does not want to be in the middle of the intersection in a red light. He requested staff continue to work with the controller manufacturer. Mr. Prasad responded that it is liability issue for the controller manufacturers and some of the manufacturers that he spoke to during a conference stated it is a behavioral change.
Member Swent thanked Mr. Prasad for the report.
Chairperson Wadler stated he is able convert the slides and finished video into Flash Version once provided with the slides and video.
Mr. Augenstein advised that staff can add the video and slides onto VTA’s FTP site if County Roads and Airport staff have a problem adding it on their website.
Member Sullivan stated that gradient in an intersection makes a huge difference in the amount of time you need to get across. Mr. Prasad advised that the formula equation includes the grades and intersection specifics.
Member Stallman inquired as to whether the County of Santa Clara was investigating in conjunction with the City of Sunnyvale a means for the signal to determine whether it is possible to reduce the default green time for the expressway if heavy traffic is not present on minor streets. Mr. Prasad responded that during peak commute hours, signals are coordinated to give the expressway the full amount of green time and after peak hours, it is on a first come first serve basis except for the freeways, which are on minimum recall.
Mr. Augenstein requested clarification on whether or not bicycles will terminate green lights on expressway crossings if there are no vehicles present in cross traffic. Mr. Prasad responded that at locations where there are bicycle detectors, bicycles alone will trip the green light.
Ms. DeRobertis inquired if the presentation was provided to the Institute of Traffic Engineers (ITE) Meeting and further inquired about their response. Mr. Prasad responded that comments varied from this is something new that they have never seen before to requesting a copy of the video to queries with regard to the various make of bicycles and how they will be detected.
Ms. DeRobertis inquired as to the type of detector that is used and if staff could receive a copy of the specs for the Bicycle/Pedestrian Guidelines. Mr. Prasad responded that the detector is a Type D diamond detector loop.
Paul Pascoal, Santa Clara County Roads & Airport Department BPAC Liaison, referenced a previously distributed document entitled, “Roads and Airports Calendar Year 2006 Capital Projects Master Plan” that outlines projects currently programmed through County Roads and Airports, such as Non-Freeway Pavement Management, Non-Pavement Maintenance Repair, Expressway Pavement Management, Airports, Storm Damage Projects, Pedestrian/Bicycle Projects, Level of Service (LOS), Signal Synchronization and LOS, Intersection Improvements, Road Safety & Lighting, and bridge.
Member Stallman stated that Mitty Way/Lawrence Expressway pedestrian signal improvements are not listed in the Master Plan. Dan Collen, Santa Clara County Director of Infrastructure Development, responded that the project is going out for advertising.
Member Manry referenced the fourth project from the bottom, Scour Protection at Select Bridge Locations and queried what scour protection is. Mr. Pascoal responded that scour protection is something that is added along the abutments adjacent to the water to slow the process of eroding the bridges that have water flowing at an inordinate rate.
Member Stallman noted that he did not see the sidewalk project along Montague Expressway mentioned in the Master Plan. Mr. Collen and Mr. Kobayashi explained that a lot of the projects overlap so it is hard to break them down in one specific category.
Member Walton referenced Pedestrian Bicycle Projects, #5., Lawrence Expressway at Mitty Way and inquired when construction is scheduled to begin. Mr. Collen responded he will email the construction start date to him.
Member Stallman queried who will be responsible for the implementation of bicycle racks on County properties. Mr. Collen responded County Roads and Airports Department has ownership over roads and facilities, and property management is handled by other organizations in the County, so coordination between entities is necessary.
Member Stallman advised that US 101/Skyport is in need of bicycle lanes. Mr. Collen advised that Mr. Pascoal is the Project Engineer for the Project and will be able to add bicycle lanes into the Plan.
Member Muniz referenced Airports, #7., South County Airport Landscaping/Remove Obstruction and asked if the Master Plan includes scoping of upgrades to San Martin Avenue and additional bicycle lanes along San Martin Avenue. Mr. Collen responded that the Airport Master Plan stays within the airport property.
Member Muniz queried where he can obtain a copy of County Roads Map. Mr. Collen stated he does not believe one is in existence.
Member Kobayashi referenced a distributed document entitled Table 6-1: Bicycle Improvement Projects, noting that the Status Column depicts that many of the projects have been completed.
Member Kobayashi advised that the Almaden Road between Ironwood and Koch Project is currently out for bid and the County of Santa Clara are trying to ascertain funding for the Oregon/Alma Bridge.
Member Hagenmaier stated that while the Status Section indicates that Foothill/San Antonio and Foothill/Magdalena Projects have been completed, he does not know that anything was completed there. Mr. Collen advised that when preparing the estimates, staff did a worse case assumption than would be necessary. Mr. Collen added that for projects needing sufficient shoulder area for bicycle use, the Project was completed instead through reduction and/or adjustment of through lanes and striping additional areas to the shoulders.
Member Stallman queried if information is available that outlines pedestrian projects. Mr. Pascoal responded that the information will be provided at the August 9, 2006 BPAC Meeting.
Mr. Kobayashi reported that in the past 10 years, approximately 40 pedestrian and bicycle projects were completed with costs from $5,000 to $200,000 per project.
Chairperson Wadler queried if it is the long-term goal of County Management to convert the expressways into freeways under the control of the County rather than the State. Mr. Collen assured Chairperson Wadler that the goals committed to by the County of Santa Clara and Board of Supervisors are fully described in the Expressway Planning Study. Chairperson Wadler inquired if the Expressway Planning Study will be rewritten in 2007. Mr. Collen stated that minor updates and tweaking will be completed in 2006. Mr. Collen advised that County Roads and Airports is committed to making sure that the BPAC is aware of and able to participate in any proposed considerations or modifications to the Expressway Planning Study.
Member Kobayashi advised the BPAC Committee that County Roads & Airports appreciate their comments and are looking forward to working closely to come up with two projects that have the biggest bang for the buck.
Member Stallman inquired if the County of Santa Clara has considered unloading any expressways or portions of expressways to the cities. Mr. Collen responded that during the Expressway Planning Study process, the cities were asked if they were interested in taking over the expressways and to date the City of Palo Alto said no and the City of San Jose said yes so there is a possibility.
On order of Chairperson Wadler, there being no objection, the Report on County Activities pertaining to Bicycles was received.
|