SR 05:240 - Laserfiche WebLink

Stoneridge Drive at 1-680 Northbound Off-ramp Mitigation - Minor traffic signal upgrade Upgrading the traffic signal to allow northbound right turn traffic to move concurrently with westbound through traffic for an adjustable period of time would make this signal more efficient and thus reduces delay significantly for local traffic. Stoneridge Drive at Springdale Avenue Mitigation - Upgrade traffic signal and restripe Springdale Avenue. The existing signal operations for Springdale Avenue are very inefficient and reduce green time along Stoneridge Drive. Without the West Las Positas Interchange, this is one of the few gateways into the residential tract south of Stoneridge Drive and west of 1-680. Restriping the northbound and southbound approaches to allow north/south traffic to flow concurrently, and removing the east crosswalk would reduce overall delay at the intersection, and increase green time on Stoneridge Drive, including the westbound left turn into the residential area. The time it takes a pedestrian to cross Stoneridge Drive in the east crosswalk, directly conflicts with the heavy southbound left turn movement coming out of the mall area. Shifting these pedestrians to the west crosswalk allows them to cross Stoneridge Drive concurrently with the heavy southbound left turn movement, thus freeing up green time for other residents. Stoneridge Drive at West Las Positas Boulevard Mitigation - Convert the #3 northeast bound through lane into a right turn only lane. In Alternative C, there is a significant increase in traffic turning right from eastbound West Las Positas Boulevard onto Stoneridge Drive to access the Stoneridge Drive Extension. Congestion and delay is significantly reduced by restriping the #3 eastbound through lane as a right turn only lane. Stoneridge Mall Road at Deodar Way Mitigation - Construct new traffic signal and add 2nd northbound left turn In all Year 2025 scenarios, the flow of traffic along Stoneridge Mall Road approaches the capacity of the stop sign controls at this intersection, resulting in LOS E conditions on Stoneridge Mall Road. Stop sign controls have far less capacity than traffic signal control. This was recently demonstrated at Vineyard Avenue at Montevino Drive where traffic backups were eliminated when the signal replaced the previous 4-way stop. Installing a traffic signal and restriping the # 1 northbound through lane as a second left turn lane reduces delay at this intersection by about 75%. This should help to draw some traffic off of Canyon Way, and thus help reduce congestion at the intersection of Foothill Road and Canyon Way. It is recommended that this intersection be included in the list of future traffic signals so that it can be included in developer traffic impact fee calculations for construction in the future when needed. Stoneridge Mall Road at Embarcadero Court Mitigation - Construct new traffic signal In all Year 2025 scenarios, the flow of traffic along Stoneridge Mall Road exceeds the capacity of the stop sign controls at this intersection, resulting in LOS F conditions on Stoneridge Mall Road. Stop sign controls have far less capacity than traffic signal control. This was recently demonstrated at Vineyard Avenue at Montevino Drive where traffic backups were eliminated when the signal replaced the previous 4-way stop. Local developers are required to fund the design and construction of a traffic 12