5.3. SR 10-12-1998 - Laserfiche WebLink

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Mr. Pat Klaers October 2, 1998 Page 2 3. Minimum traffic volumes: The total vehicular volume entering the intersection from afl approaches must average at least 500 vehicles per hour for any 8 hours of an average day, and The combined vehicular and pedestrian volume from the minor street or highway must average at least 200 units per hour for the same 8 hours, with an average delay to minor street vehicular traffic of at least 30 seconds per vehicle during the maximum hour, but When the 85-percentile approach speed of the major street traffic exceeds 40 miles per hour, the minimum vehicular volume warrant is 70 percent of the above requirements. Analysis of each of these warrants is as follows: A signal is not warranted or urgently needed at this intersection, so this warrant is not met. On September 2, 1998, Jori Anderson at Mn/DOT Office of Traffic Engineering responded to our request to send us a listing of all reported accidents at this intersection for the last three years. The summaries are found on the attached pages. No accidents have occurred at this intersection in the past three years. Therefore, this warrant is not met. Traffic counters were set up on all approaches of this intersection from Tuesday, September 1, 1998 to Thursday, September 3, 1998. The results are included on the attached pages. Presently, there are no hours where the total approach volume of the intersection is at least 500 vehicles. The peak approach volume hour was 5:00 p.m. - 6:00 p.m., and there were 340 vehicles entering the intersection. Using the Trip Generation manual, and assuming 78 occupied rooms in a motel, the average weekday traffic would be 752 vehicles per day (Ln(T) = 1.065Ln(X) + 1.983; T- number of trip ends, X = number of occupied rooms; p.550 of manual). A conservatively high assumption for the peak hour is 10% of the ADT. With this assumption, and assuming that % of the vehicles are leaving the hotel at this hour, this peak volume would be 75~2 = 38 vehicles. Adding this volume to the peak hour volume, there would be 378 vehicles during the peak hour. There still would be 0 hours when the approach traffic reaches 500 vehicles. There is no significant pedestrian volume at this intersection to affect this warrant. This warrant is not met. Howard R, Green Company O:\PROJ\804920j\O325\920-1807.sept.doc CONSULTING ENGINEERS