4 - Laserfiche WebLink

Page 7 Figure 3 – K71 (green 12 inch bollard) and standard 2 inch white delineator Maintenance: Maintenance will be a key aspect of phase 1. The delineators provide the physical separation between vehicles and bicycles, but the delineators also create a barrier that means that a standard street sweeper cannot be used. Smaller street sweepers are available that can sweep within the protected bike lane, but they are not a standard vehicle owned by street sweeping contractors. The current street sweeping contract requires the contractor to “hand sweep” areas that are inaccessible by the street sweeping vehicle. However, hand sweeping is infrequently completed and is normally conducted only on a request basis. This phase will allow staff to determine the frequency of hand sweeping necessary and include this added cost in future contracts or require/purchase a smaller street sweeper to clean the corridor. Phases 2-4: Extension of Quick Build Improvements. As conceptualized in the Corridor Plan, the lower cost “quick build” concept would be extended in subsequent phases from Hopyard Road to Foothill and from Hacienda Drive to Fairlands Drive. However, as described below, these phases may be bypassed with the Reconstruction Plan. Phase 5 – Intersection Improvements. Phase 5 will install protected intersections at Foothill Road, Hopyard Road, Willow Road, Stoneridge Drive and Santa Rita Road. This phase has varying levels of traffic signal modifications and will likely be completed one intersection at a time. Stanley Boulevard at Valley Avenue / Bernal Avenue provides an example of a protected intersection design. Phase 6: Install Permanent Bikeway Buffers (in conjunction with West Las Positas Reconstruction). In the Corridor Improvement Plan, Phase 6 upgrades all the bikeway buffers from thermoplastic striping / flex posts to concrete separation islands, resulting in one-way separated bike lanes. This design was modified in January of 2022 to create an elevated bikeway as the preferred design solution. The cost of both options will be evaluated as part of the West Las Positas Reconstruction Project. In reviewing the construction details of the reconstruction project and the concrete separated bikeway, there may be some cost savings in ele vating the bike lanes.