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April 24, 2002 Roger Kroh, AICP, Director Johnson County Planning, Development & Codes Department 111 South Cherry Street, Suite 3500 Olathe, Kansas 66061-3441 Re: Traffic Impact Analysis at 159th Street and Metcalf Preliminary Trip Generation and Distribution Johnson County, Kansas Dear Mr. Kroh: In response to your request, TranSystems Corporation is providing preliminary results of our trip generation and trip distribution for your review. Due to the schedule requested by our client on this project, we request a response by the end of business Monday, April 29, 2002. If no response is received, we will proceed with the traffic impact study assuming that staff approves of these preliminary results. TRIP
GENERATION The vehicle trips generated by the proposed shopping center development were estimated using the Institute of Transportation Engineers Trip Generation, 6th Edition. The Comprehensive Master Plan calls for transitional development at this location which suggests that apartments would be appropriate. The vehicle trips generated by the Comprchensive Master Plan were also estimated for this study assuming this site develops as apartments. The estimated daily, A.M. peak hour, and P.M. Peak hour weekday traffic volumes associated with each of these developments are also shown below. Trip Generation
Typical Weekday for Proposed Development
TRIP DISTRIBUTION The estimated peak hour trips generated by the proposed development will be distributed onto the street system based on the trip distributions listed below. Due to continuing development in this area of Johnson County and in Overland Park, as well as the planned interchange at 159th Street and US-69, the trip distribution patterns are anticipated to change over time. As such, separate distribution patterns will be used for the existing and future conditions. These distributions are consistent with past studies in the area. Mr. Roger Kxoh ApdI 24, 2002 Page 2 of 2 Trip
Distribution
EXISTING P.M. PEAK HOUR COUNTS As per the scope of services identified by the County for this study, traffic volumes were collected at the following existing intersections on April 9, 10 and 11, 2002. US-69 NB and 15l~ Street US-69 SB and 15 1~ Street Metcalf Avenue and 15 l~ Street Metcalf Avenue and 159th Street Riggs and 159th Street Metcalf Avenue and l5l~ Street US-69 NB and 167th Street US-69 SB and 167th Street Metcalf Avenue and 167th Street The existing P.M. peak hour volumes have been summarized and attached to this letter. The traffic volumes at the intersection of Metcalf Avenue and 151st Street were adjusted due to construction on Metcalf, north of the intersection. The adjustments were made based on traffic counts provided by the City of Overland Park from June 2001. We trust that the enclosed information proves sufficient for review by Johnson County. We will be available to review these preliminary results with you at your convenience. Sincerely, TranSystems Corporation By: [His Signature] Jeff McKerrow , P.E. Enclosure JDM:sjl:KCO2O111 |
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