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Home My WebLink AboutTIS Waiver Request December 7, 2022 City of Bozeman Transportation and Engineering 20 East Olive Street P.O. Box 1230 Attn: Mikaela Schultz Re: Big Sky Benefit Solutions Site Plan – Lot 10, Block 2, Nelson Meadows Subdivision T.I.S. Dear Mikaela, This letter is in response to your request for a more conclusive narrative comparing peak value generation allotted during the Nelson Meadows Subdivision development and the projected peak value generation for the above-mentioned site development. We are asking for a waiver from the Traffic Impact Study requirement during the Site Plan process. The Big Sky Benefit Solutions Site Plan proposes the development of a 5,118 sf (5.1 ksf) office building and associated site development, leaving a portion of the site undisturbed. Below, Figure 1, in blue, are the generation rates for the proposed office building development. This information is based on the ITE Trip Generation Handbook – 2nd Edition. Since the estimated traffic generation for this development is significantly less than 150 trips during the peak hours we are asking for the requirement of a letter/study for this development to be waived. Table 1) ITE Trip Generation Handbook – 2nd Edition It should also be noted that during the design and development of the Nelson Meadows Subdivision, Morrison Maierle conducted a traffic impact study, assigning an allotted volume of traffic based on lot size and building area. Figure 1 below is a snippet from the original subdivision report. 07-Dec-22 ITE Trip Generation Rates - 9th Edition Pass-by rates from ITE Trip Generation Handbook - 2nd Edition (copyrights, Insitute of Transportation Engineers) Description/ITE Code ITE Vehicle Trip Generation Rates Units (peak hours are for peak hour of adjacent street traffic unless highlighted) Weekday AM PM Pass-By AM In AM Out PM In PM Out General Office 710 KSF2 11.03 1.56 1.49 88%12%17%83% Expected Total Generated Trips Total Distribution of Generated Trips Units Daily AM Hour PM Hour AM In AM Out Pass-By PM In PM Out Pass-By 5.1 56 8 8 7 1 0 1 6 0 Figure 1) Nelson Meadows Subdivision Traffic Impact Study (Morrison Maierle, June 2018) [Page 13] Based on the information stated in Figure 1, the area of the associated lot (Lot 10, Block 2) being 1.88 acres, and the proposed building area being 5,118 sf the following can be determined: 93% 𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵 𝐴𝐴𝐴𝐴𝐵𝐵𝐵𝐵=93%∗1.88 𝐴𝐴𝐴𝐴𝐴𝐴𝐵𝐵𝐴𝐴=1.75 𝐴𝐴𝐴𝐴𝐴𝐴𝐵𝐵𝐴𝐴 𝐴𝐴𝐴𝐴𝐴𝐴𝐵𝐵𝐴𝐴𝐵𝐵𝐵𝐵 𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵 𝐶𝐶𝐶𝐶𝐶𝐶𝐵𝐵𝐴𝐴𝐵𝐵𝐵𝐵𝐵𝐵=20%∗1.75 𝐴𝐴𝐴𝐴𝐴𝐴𝐵𝐵𝐴𝐴=0.35 𝐴𝐴𝐴𝐴𝐴𝐴𝐵𝐵𝐴𝐴 𝑃𝑃𝐴𝐴𝐶𝐶𝑃𝑃𝐶𝐶𝐴𝐴𝐵𝐵𝐵𝐵 𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵𝐵 𝐶𝐶𝐶𝐶𝐶𝐶𝐵𝐵𝐴𝐴𝐵𝐵𝐵𝐵𝐵𝐵=5,118 𝐴𝐴𝑠𝑠÷ 43,560 =0.12 𝐴𝐴𝐴𝐴𝐴𝐴𝐵𝐵𝐴𝐴 Given that during the design of the subdivision, the assumed building coverage allotted to Lot 10, Block 2 is 0.35 Acres is greater than the proposed 0.12 Acres for the construction of a single office building there is no need for additional traffic analysis. In addition to the proportional areas supporting the request for a waiver, Figure 2 below provides a snippet of estimated traffic for the intersection during peak hours associated with Lots 9 and 10, Block 10. Figure 2) Nelson Meadows Subdivision Traffic Impact Study (Morrison Maierle, June 2018) [Page 20]