5.2 PCSR 06-28-1994 - Laserfiche WebLink

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Mr. Kim Vickroy -2- June 17, 1994 • Traffic Counts In order to analyze the traffic impacts of the proposed school, daily traffic counts were needed on the surrounding roadways. Traffic counts were conducted over a 48 hour period on June 13-15, 1994, on the following roadways: Irving St. south of the northern leg of 197th Ave., 196th Ave. west of Irving St., 195th Ave. west of Irving St., Lowell St. south of 195th Ave., Irving St. north of 194th Ave., and Holt St. north of 193rd Ave. The 48 hour volumes were divided by two to determine the average daily volume. TRAFFIC FORECASTS Trip Generation Based on information obtained from church staff and from data published by the Institute of Transportation Engineers, it was estimated that approximately 10 percent of the students will drive themselves to and from school, 30 percent will receive rides from others, and 60 percent will ride the bus. Applying these percentages to the number of students and staff expected in the school one year after opening results in 196 daily trip ends generated. Applying the same percentages to the number of students and staff expected for the full development scenario results in 514 daily trip ends. Trip Distribution and Assignment Trip distribution percentages were estimated based on existing traffic patterns to and from the church as described by church staff. It is estimated that approximately 60 percent of the trips generated by the school will be to/from the south on T.H. 169, 10 percent will be to/from the south on Jackson Ave., 20 percent will be to/from the north on T.H. 169 and 10 percent will be to/from the west on Highland Rd. Of the trips to/from the south on T.H. 169, it was estimated that 33 percent would use 192nd Ave. and 67 percent 197th Ave to access the area. Applying the distribution percentages to the expected number of generated trips and adding the resulting value to the existing daily volumes results in expected daily volumes on the surrounding roadways. These volumes are shown in Figure 1 for both the one year after opening scenario and the full development scenario. TRAFFIC ANALYSIS Ability of Adjacent Roadways to Accommodate the School Traffic The daily traffic volumes shown in Figure 1 show increases on all of the adjacent roadways for both scenarios. All of the traffic volumes shown, both existing and future, are well within the normal traffic volume range for residential streets. 1111