SUPPLEMENTAL MATERIALS - Laserfiche WebLink

Mike Tassano January 31, 2025 Page 33 of 37 to LOS D or better at Santa Rita Road/Stoneridge Drive or Santa Rita Road/Valley Road, and deteriorates traffic delay to LOS E or worse at the new intersection 4 (El Charro Road/Stanley Boulevard) and intersection 5 (El Charro Road/Stoneridge Boulevard). On average, the two-lane extension yields approximately half of the delay reductions that the full extension produces. Comparing both extension alternatives, a partial extension of El Charro Road would yield smaller benefits than a full extension, resulting in about half of the average delay reduction. Under this scenario, no new intersections operate at unacceptable conditions, but the extension would have an impact on traffic along Busch Road. An extension of El Charro Road as a two-lane roadway would also result in about half of the average delay reduction compared to the four-lane extension, with intersections such as El Charro Road at Stanley Boulevard, and El Charro Road at Stoneridge Boulevard, reaching unacceptable LOS conditions. Overall, the analysis suggests a full four-lane extension of El Charro Road connecting to Stanley Boulevard is warranted. Travel Time Assessment The intersection operations analysis presented for the alternatives above has been used to estimate travel times along three key routes that would be affected by the extension: • Main Street/Santa Rita Road between Bernal Avenue and Stoneridge Drive • First Street/Stanley Boulevard between Bernal Avenue and Valley Avenue • El Charro Road between Stanley Boulevard and Stoneridge Drive (only for plus extension scenarios) The impact of each land use development (Alternatives 1 through 4) on predicted travel times is modest, which is consistent with the LOS results shown earlier. On average, the increases in delay produced by these developments are not greater than three seconds per intersection, which is not enough to substantially impact overall travel times results. For these reasons, only the travel times of Alternatives 4 through 6 are shown below. Table 14 presents travel times summaries for the various extension alternatives. Table 15 presents the difference in travel time impacts across these alternatives. These scenarios include all four project land uses.