ITEM 5 EXHIBITS A-H - Laserfiche WebLink

4400 Black Avenue Redevelopment – Transportation Assessment January 8, 2025 4 Level of Service Analysis Analysis Methodology Background LOS is a qualitative measure that describes operational conditions as they relate to the traffic stream and perceptions by motorists and passengers. The LOS generally describes these conditions in terms of such factors as speed and travel time, delays, freedom to maneuver, traffic interruptions, comfort, convenience, and safety. The operational LOS values are given letter designations from A to F, with A representing the best operating conditions (free flow) and F the worst (severely congested flow with high delays). Intersections generally are the capacity-controlling locations concerning traffic operations on arterial and collector streets. The project study area consists of one (1) signalized intersection (Black Water Avenue at Santa Rita Road) that is located approximately 800 feet east of the project site and is one the main local access points to the project site, being the nearest signalized intersection to the planned development. The study intersection was analyzed using the 7th Edition of the Highway Capacity Manual (HCM) operations methodology by using an analysis software package known as SYNCHRO 12.0 for the following analysis conditions: • Existing Conditions – This scenario describes existing transportation conditions relevant to the study area, including characteristics of key roadways and transit service, existing conditions for walking and bicycling. • Existing Plus Project Conditions – This scenario describes the anticipated effects of the Project on Existing Conditions, including the addition of traffic from the Project to study intersections. The criteria for determining the significance of project impacts is based on the City of Pleasanton performance standards identified in the Pleasanton General Plan and utilized in prior transportation impact studies. Traffic Impact Criteria The City of Pleasanton LOS standards specify that the minimum acceptable operation for signalized intersections is LOS “D”. Project impacts would be considered potentially significant if the Project results in: • Deterioration of a signalized intersection from LOS D or better to LOS E or F; or