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<br />City of Santa Ana | First Street Multimodal Corridor <br />Technical Memorandum <br /> <br />17 <br /> <br />VISSIM looks at each vehicle as is travels along the network. This allows for more accurate <br />operational analysis and travel time modeling by travel model (passenger vehicle versus bus <br />for example). <br />In order to accurately assess traffic conditions using VISSIM, multiple model runs are <br />conducted, and the results are averaged. The model is then compared to existing conditions <br />and calibrated until the delay and travel time accurately reflects the analyzed and observed <br />conditions . Table 5 reports the intersection delay using VISSIM for each of the study <br />intersections . <br />Table 5. Existing Condition VISSIM Results <br /># INTERSECTION AM Peak Hour PM Peak Hour <br /> Delay <br />(s) LOS Delay <br />(s) LOS <br /> <br />1 1st St. at Bristol St. 41.2 D 42.3 D <br />6 1st St. at Flower St. 32.6 C 33.3 C <br />8 1st St. at Ross St. 10.7 B 6.8 A <br />10 1st St. at Broadway 30.5 C 34.3 C <br />11 1st St. at Sycamore St. 10.0 A 10.8 B <br />12 1st St. at Main St. 30.6 C 30.4 C <br />13 1st St. at Bush St. 8.2 A 11.7 B <br />14 1st St. at DT Plaza 13.3 B 22.5 C <br />21 1st St. at Standard Ave. 32.0 C 22.5 C <br />22 1st St. at Grand Ave. 36.6 D 46.4 D <br />25 1st St. at Lyon St. 59.5 E 49.2 D <br />26 1st St. at Zoo Ln. 40.3 D 48.2 D <br />27 1st St. at I -5 SB 8.1 A 5.5 A <br />28 1st St. at Cabrillo Park Dr. 15.2 B 17.9 B <br />29 1st St. at Golden Circle Dr. 14.4 B 10.3 B <br />30 1st St. at Tustin Ave. 24.0 C 27.4 C <br /> <br />