HomeMy WebLinkAbout009 - Roers TIS Memo
2880 Technology Blvd. W. • PO Box 1113 • Bozeman, MT 59771
(406) 587-0721 • www.m-m.net
Updates to: Urban + Farm
Commercial Subdivision TIS
(September 2023)
Bozeman Roers Apartments
Bozeman, Montana
November 2024
MMI Project No. 10549.002
Purpose of Report and Study Objectives
A traffic impact study has already been completed for the Urban + Farm Commercial Subdivision by
Hyalite in September 2023. The purpose of this report is to analyze the increase in trip generation brought
on by Roers Bozeman Apartments, consisting of two mid-rise, multi-family residential buildings, a total of
285 dwelling units. Study recommendations and conclusions are intended to provide insight to the
increase in trip generation and what improvements, if any, may be necessary to accommodate the
additional traffic demand.
Proposed Development
Development Description
The proposed development is located in Bozeman, Gallatin County, Montana on Lot 1, Block 3 of Urban
+ Farm Subdivision Phase 2. The property is bordered by Park C to the west, Open Space A to the south,
Laurel Parkway to the east, and Valley Commons to the north.
Analysis
Trip Generation
Trip generation is a forecast of the number of trips that begin or end at the development site. The traffic
generated is a function of the quantity and type of proposed land use. There are several options available
for estimating trip generation. This study utilized trip generation rates based on the specific Land Use
Code (LUC) found in Trip Generation,11th Edition published by the Institute of Transportation Engineers
(ITE). The total estimated trip generation for the site is provided in Table 1 below.
Table 1: Estimated Site Trip Generation Summary (LUC 221)
This assumes the following from the Trip Generation Manual 11th Edition, Institute of Transportation (ITE):
Time Period Average Rate or Equation
Weekday 4.54 Vehicle Trips per Dwelling Unit (50%
Enter, 50% Exit)
Weekday, Peak Hour of Adjacent Street Traffic,
One Hour Between 7:00 and 9:00 a.m.
0.37 Vehicle Trips per Dwelling Unit (23%
Enter, 77% Exit)
Weekday, Peak Hour of Adjacent Street Traffic,
One Hour Between 4:00 and 6:00 p.m.
0.44 Vehicle Trips per Dwelling Unit (61%
Enter, 39% Exit)
The proposed development generates an estimated 1,294 average weekday trips as well as average
weekday AM and PM peak hour trips of 81 and 111 vehicles, respectively.
Findings
Given the trip generation, distribution, and comparison of intersection LOS between the existing and
proposed land usage, the minor increase in trip ends to and from the Urban + Farm Subdivision Phase
2 does not significantly impact the surrounding traffic network.
Land Use Units Average Weekday Trips Average Weekday,
AM Peak Hour Trips
Average Weekday,
PM Peak Hour Trips
Enter Exit Total Enter Exit Total Enter Exit Total
Estimated Total Site Generated Trips
Building A –
Multifamily Housing
(Mid-Rise) – LUC 221
145 329 329 658 12 41 53 35 22 57
Building B –
Multifamily Housing
(Mid-Rise) – LUC 221
140 318 318 636 12 40 52 33 21 55
Total 285 647 647 1294 24 81 105 68 43 111
Estimated Total from Urban + Farm Commercial Subdivision TIS, September 2023
Block 3 – Lot 1 (LUC
220) 136.2 459 459 918 13 42 55 44 26 70