SR 05:070 - Laserfiche WebLink

The "Existing" LOS are based on actual counts of vehicles making each movement at the intersection during the peak periods. These data are from 2003. The LOS at each intersection is further based on the existing signal timing which, for some intersections, is not optimized for that intersection but, rather, for a series of signals (e.g., along Hopyard Road, where signal timing is designed to optimize through traffic over its full length rather than unconnected intersections). The "Existing Plus Approved" LOS is based on traffic model-generated intersection volumes and movements, with the LOS calculated as optimized for that single intersection. (It is neither feasible nor worthwhile at this stage to attempt a conceptual route optimization.) This may lead to slightly different delay when compared to "Existing," but it should not be significantly different. EXISTING CONDITIONS Intersections Tables 1 and 2 show the existing LOS at all 127 counted intersections along arterial streets in the morning and evening "peak hours," respectively. These tables show delay by intersection leg as well as for its overall delay. In the moming, 88 percent of the intersections operate at LOS C or better; in the afternoon, a similar 87 percent of the intersections operate at LOS C or better. In the morning, eight percent operate at LOS D, and four percent are at LOS E/F. In the afternoon, eight percent are at LOS D, and seven percent are at LOS E/F. TABLE 3 SUMMARY - EXISTING LEVEL-OF-SERVICE :L~el-of. se~ice/ Number of Percent of C~i~ti~ Number Of Percent of cumulative Intersections Intersections Intersections Intersections percent A <- 10 seconds 55 45% 45% 44 35% 35% B >10 and_<20 seconds 35 28% 73% 46 36% 71% C >20 and <35 seconds 18 15% 88% 20 16% 87% D >35 and <-55 seconds 10 8% 96% 10 8% 95% E >55 and <_80 seconds 4 3% 99% 4 3% 98% F >80 seconds 1 <1% 100% 3 2% 100% SR 05:070 Page 3