SR 05:240 - Laserfiche WebLink

More than 50% of morning and almost 50% of southbound traffic on Foothill Road turns left onto Stoneridge Drive. The projected left turn volume exceeds 650 vehicle per hour in the Year 2025. Restriping the #1 southbound through lane as a third southbound left turn lane would reduce delay and queuing at the intersection, while maintaining LOS A and B in the remaining southbound through lanes. Foothill Road at West Las Positas Boulevard Mitigation - Widen Foothill Road and West Las Positas Boulevard to 4 lanes The 1996 General Plan includes the widening of Foothill Road and West Las Positas Boulevard to 4 continuous lanes approaching this intersection. The Year 2025 scenarios that include some of the 1996 General Plan road widenings assume that there are two continuous north and southbound lanes on Foothill Road and 2 continuous westbound lanes on West Las Positas Boulevard approaching this intersection. Gibraltar Drive at Chabot Drive Mitigation - Upgrade traffic signal The LOS rating improves at this intersection relative to the 2003 LOS because the City changed the traffic signal operation to reduce delay at the intersection in 2005. By eliminating the north/south split phasing, and the east/west left turn arrows, delay was reduced by about 50%. Year 2025 forecasts using "Approved" Pleasanton land development projections indicate that this more efficient signal operation can stay in operation through the Year 2025. Gibraltar Drive at Willow Drive Mitigation - Upgrade traffic signal Due to the relatively low through and left turn volumes on Gibraltar Drive at Willow Drive, eliminating the east/west left turn arrows should safely reduce delay at this intersection through the Year 2025. This delay reduction was recently demonstrated at the intersection of Gibraltar Drive and Chabot Drive. Hacienda Drive at 1-580 Eastbound Mitigation - Restripe Off-ramp Full development of the Hacienda Business Park is forecast to increase 1-580 off-ramp right turn volumes to over 1,300 vehicles per hour. Restriping the #2 left turn lane to be a left/right turn option lane would significantly reduce congestion and delay at this intersection. Hacienda Drive at Owens Drive Mitigation - Restripe intersection and upgrade signal to provide three eastbound and southbound left turn lanes, and eliminate the north crosswalk. Double left turn lanes are recommended when left turn traffic volumes reach 300 vehicles per hour. The southbound and eastbound left turn volumes at this intersection are forecast to reach about 900 vehicles per hour during peak commute periods. Restriping and reconfiguring the traffic signal to convert the #1 southbound lane on Hacienda Drive, and the #1 eastbound lane on Owens Drive into left turn lanes, lane significantly reduces left mm delay and queuing, while still providing LOS C conditions for southbound and eastbound through traffic. 7