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100 Pringle Avenue | Suite 600 | Walnut Creek, CA 94596 | (925) 930-7100 | Fax (925) 933-7090 www.fehrandpeers.com Final Memorandum Date: February 12, 2025 To: Mike Tassano, City of Pleasanton From: Bill Burton and Bruno Lertora, Fehr & Peers Subject: El Charro Road Extension Assessment WC22-3932 Executive Summary This memorandum summarizes the results of the transportation assessment prepared for the El Charro Road extension project. The El Charro Road extension project would connect Stoneridge Drive and Stanley Boulevard with a four-lane divided roadway. The project would also extend Busch Road east to this new roadway, collectively providing a new north-south alternative through the City of Pleasanton. Fehr & Peers conducted a travel patterns assessment of the proposed extension by utilizing multiple data sources including existing counts, StreetLight data, and local and regional travel demand models to analyze the impacts of the extension. The results of this assessment indicate the transportation effects of the proposed El Charro Road extension in terms of traffic volume (diversion), intersection level of service (LOS) at key locations, and travel times on key links are generally positive, as the extension benefits other competing north-south roadways, such as Santa Rita Road, by re-routing traffic from them. Some roadways, such as Bernal Avenue and Stanley Boulevard, may experience increased traffic with the proposed extension. The El Charro Road extension would lead to an increase in average delay at the intersection of El Charro Road/Stoneridge Drive, but traffic operations at this intersection would remain at an acceptable level of service. Part of this impact can be explained by cut-through traffic from I-680 and I-580 as well as induced regional demand using the new roadway extension. Approximately 150 to 200 vehicles would be regional cut-through traffic without a local origin or destination in the peak direction on the extension. This amount of cut- through traffic is smaller than the current cut-through traffic using Santa Rita Road during the AM and PM peak hours, which is estimated at 200 to 350 vehicles in the corresponding peak direction. Approximately 50% of the cut-through traffic on El Charro Road would come from existing cut-through traffic on Santa Rita Road.