Committee reviews SDC trip-generation math after Taco Bell and U.S. Market propose projects; staff and developers differ on peak trip estimates

Aug 20, 2026

Staff explained the city's transportation SDC methodology and presented trip-generation numbers for two proposed developments: a convenience store/U.S. Market (about 96 peak trips) and a Taco Bell (engineer 99 peak trips; developer expected ~32). The difference could produce SDC estimates of roughly $450,000 for the U.S. Market; members asked staff to follow up with developers and the county on methodology and jurisdictional intersections.

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City staff walked the committee through how transportation system development charges (SDCs) are calculated and why the proposed convenience store/U.S. Market and Taco Bell developments produced markedly different trip-generation estimates. Staff explained that the market/engineering estimate for the convenience store plus an attached coffee/donut component produced roughly 96 peak-hour trips (77 plus 19), while the Taco Bell's consultant estimated about 99 peak trips and the developer suggested a number closer to 32.

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