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fact that the study period covers only 16 hours of the day and also to account <br />for the fact that sometimes a single vehicle will use more than one of the <br />facilities during a given trip. The application of this factor yields a <br />volume of 1260 individual vehicles using the proposed facilities during the <br />study period. Secondly, a conservative factor of 60 % was applied to the 1260 <br />vehicles to account for the fact that not all vehicles utilizing the <br />facilities will exit the area via the northbound Willow Drive approach. The <br />application of this factor yields a volume of 756 additional vehicles using <br />the northbound Willow Drive approach during the study period. To obtain the <br />final predicted hourly traffic volumes with the planned development, the <br />additional 756 vehicles were distributed over the hours in the study period in <br />proportion to the existing traffic volumes. Copies of the calculations are <br />included in the appendix of this report. The results of the calculations are <br />shown in the Traffic Signal Warrant Investigation Summary on page 17 and on <br />the graphs for Warrants 9 and 11 on pages 18 and 19. <br />As can be seen in the summary, the predicted traffic volumes with development <br />at the end of 1991 are sufficient to warrant signalization of the intersection <br />under the following three MMUTCD signal warrants: <br />Warrant 2 -- Interruption of Continuous Traffic (met for 13 hours) <br />Warrant 9 -- Four Hour Volumes (met for 7 hours) <br />Warrant 11 -- Peak Hour Volume (met for 4 hours) <br />It should also be noted that although the accident history at the intersection <br />is not sufficiently strong to warrant signalization under Wacrant 6 — <br />"Accident Experience" there have been'several right-angle acc-Jents at the <br />intersection in the past few years, some of which involved fatalities.