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HomeMy WebLinkAbout010 BSF HQ TIS Memomemo Page 1 TO: City of Bozeman FROM: Cooper Krause, P.E., Morrison Maierle RE: Bridger Ski Foundations HQ – TIS Memo, Updated 6/25/2025 Trip Generation Due to the uncommon land use and daily varying vehicle trip demand of the Bridger Ski Foundation Headquarters, existing and proposed, there is no directly applicable Land Use Code within the Institute of Transportation Engineers (ITE) Trip Generation Manual, 11th ed. Therefore, the need for a more specific breakdown of business activities and subsequent vehicle trip generation estimations per activity exists. The following table displays each business activity, the frequency, and time range of each activity, and the assumed trip generation estimate. Business Activity Activity Frequency Average Weekday Trips Average Weekday, AM Peak Hour Trips Average Weekday, PM Peak Hour Trips Enter Exit Total Enter Exit Total Enter Exit Total Full Time Employees Daily, 8am- 5pm 12 12 24 12 12 24 12 12 24 Committee Meetings Weekly, evenings 5-20 5-20 10-40 0 0 0 5-20 5-20 10-40 Board Meetings Monthly, evenings 12-15 12-15 24-30 0 0 0 12-15 12-15 24-30 Training Sessions Seasonal, Sept & Oct 8 8 16 0 0 0 8 8 16 Event Meetings 12 per year, Winter only 10-20 10-20 20-40 0 0 0 10-20 10-20 20-40 Team Wax Nights 4 per year, Winter only 15 15 30 0 0 0 15 15 30 Larger Anticipated Events* 10 occasions per year 30 30 60 0 0 0 30 30 60 Bridger Ski Foundation Headquarters Page 2 * Larger Anticipated Events: BSF may hold occasional larger events including coach/parent orientation, Avalanche education classes, and First Aid/ CPR classes. These may take place up to 10 times in a year, mostly in the evening. For the purpose of projecting the greatest possible impact to traffic, all the evening events listed in the table above are presented as if they will start and end during the evening peak hour period. In reality, most events will generate traffic entering the site between 4 pm and 6pm but will conclude after 6pm and generate traffic exiting the site closer to 7pm or 8pm. Additionally, most events comprised of athletes and parents will have some carpooling. The reduction in traffic associated with multiple occupants per vehicle is not accounted for in the data above. A reduction of peak hour trips could be reduced by approximately 15% to 30%, depending on the type of event. See the attached Site Traffic Narrative for more details regarding the proposed use of the site. Trip Distribution Based on the available Average Annual Daily Trip (AADT) data provided by The Montana Department of Transportation, it can be assumed that the trip distribution will be evenly split (50/50) between Northbound and Southbound on N Rouse Avenue. Table 1: MDT AADT Data Transportation Impacts Due to the lack of existing Turn Movement Counts (TMC) data, it is not possible to make objective, data based conclusions on the operational impacts of N Rouse Avenue and its intersections with E Bryant Street and Bond Street. However, because of the low daily and peak hour vehicle trips, it can be assumed that there will not be any appreciable impacts on the transportation network due to the development of the Bridger Ski Foundation Headquarters at 1606 Gold Avenue. Therefore, no offsite transportation improvements are proposed as part of this project. Attachment: Site Traffic Narrative prepared by Minarik Architecture Site Location Description Direction from site access roads AADT Total % 16-3B-105 On Rouse, btw Bryant St. and Griffin Dr. North on Rouse 10029 49 060055B On Rouse, btw Bond St. and Oak St. South on Rouse 10583 51 16-3B-018 On Rouse, btw Cottonwood St. and Peach St. North on Rouse 8477 49 16-3B-016 On Rouse, btw Griffin Dr. and Bridger Center Dr.South on Rouse 8863 51 Notes 20612 17340 Secondary analysis to justify first analysis and show consistency regardless of major intersections (Oak and Griffin) Sites were selected due to their proximity to site. Pulling two data points along the same corridor without any major intersections between them typically will contain similar data, secondary analysis required MINARIK ARCHITECTURE Inc 6 1 8 N Wa l l a c e , B o ze m a n M T 5 9 7 1 5 M I N A R I K A R C H . C O M 9 7 1 3 1 9 6 2 4 9 Bridger Ski Foundation - 2501 BSF Headquarters City of Bozeman | Planning Department Site Plan Review MINARIK ARCHITECTURE Inc 6 1 8 N Wa l l a c e , B o ze m a n M T 5 9 7 1 5 M I N A R I K A R C H . C O M 9 7 1 3 1 9 6 2 4 9 Bridger Ski Foundation - 2501 In reference to complaints received on the current BSF headquarters off Birdie, a main reason for the move to a new site for BSF is having a site and facility