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Home My WebLink About16 - Traffic Impact Study - West Winds Southwest Traffic Investigation Report West Winds Southwest Bozeman, Montana April 15, 2016 Prepared For: Haystack Development PO Box 1793 Bozeman, MT 59771 �6�16A( _' • RORY SC4T•f •• °1P o.40776P •: .•L••�.SS,CEN.... �.. ONA1- ..• PREPARED BY: ALLIED c ENGINEERING SERVICES,INC. 00 c, Civil Engineering GeOtechnical Engineering Land Surveying 4rse NO e 32 Discovery Drive Bozeman MontanaI . . Haystack Development Project:16-003 April 15,2016 1 Introduction/Background The project site is located within the overall West Winds Development and has been considered as part of previous traffic studies. The attached Figures 1 and 2 show the location of the project site and the phasing of the currently proposed improvements. The project site was included with the planning for portions of the original Phase 4 and Phase 5 of the West Winds Development. As part of West Winds Subdivision Phase 5, a Traffic Impact Study 2008 Update was completed by KHM Engineering. The purpose of that study was to update previous traffic studies completed for the West Winds Development. As detailed herein, the currently proposed condominium project will generate less traffic than that previously analyzed for the Phase 4 and Phase 5 vicinities in the HKM studies. The proposed improvements include 50 condo units all to be located north of Breeze Lane within the project site. An overview of the proposed improvements is shown on Figure 2. Breeze Lane will be constructed from Davis Lane to Windward Avenue; the north-south street/drive lanes will be extended from Winter Park Street to Breeze Lane and will be extended south as part of future improvements which are not part of this submittal. Turn movements for the intersection of Breeze Lane and Davis Lane are shown on Figure 3. The overall impacts of the site have been evaluated within the West Winds Subdivision Traffic Impact Study 2007 Update and the Traffic Impact Study Update for West Winds Planned Community Phase 5 by HKM. An updated Transportation Master Plan is currently being completed for the City of Bozeman and will consider the overall transportation network. Therefore, the purpose of this evaluation is for initial evaluation of the proposed intersection of Breeze Lane and Davis Lane. Known issues surrounding the site have been previously identified and are summarized in the following section. 2 Current Issues and Planned Improvements A number of transportation network improvements have been identified as part of the Transportation Master Plan currently being completed. The Improvements are identified in the City of Bozeman Capital Improvement Plan with more recent updates to the Capital Improvements identified on the Bozeman Transportation Master Plan website in the interactive mapper as Committed Projects. The committed projects are shown in Figure 2-1, and a summary of the improvements is provided in Table 2-1. Issues identified near the project site are planned for improvement within the next two years based on the City of Bozeman Capital Improvement Plan—Fiscal Years 2017-2021. Table 2-1-Capital Improvement Plan Projects Project Name Project ID Fiscal Year Oak(New Holland to Ferguson) SIF046 18 Baxter(19th to Davis) SIF055 17 Oak and Ferguson (Intersection) SIF061 18 N. 27th and Oak(Intersection) SIF058 18 Bozeman Office . 32 Discovery Drive . Bozeman,Montana 59718 . Ph:(406)582-0221 . Fax:(406)582-5770 Stanley Office . 299 Prairie Drive . PO Box 1251 . Stanley,North Dakota 58784 . Stanley Ph:(701)629-0245 Page 1 Haystack Development Project:16-003 April 15,2016 Legend CommittedProjects—Intersections .I::Ilm:dl SI Ilnl. - C.Atal 51 II;,,.I Committed Projects Roadway K Lrt ';che sr StudyArea � _ n Dambe Ln I II: PROJECT SITE - I:th.:he •:I R c � - Figure 2-1-CIP Overview 3 Trip Generation The proposed site development project includes a total of 50 condo units consisting of single unit and duplex structures. Trip generation for the proposed site development is provided in Table 3-1. The generation is based on Trip Generation 71h Edition —Institute of Transportation Engineers (ITE). While a number of units are shared structures, the use is generally intended as small single family units. The Single-Family Detached Housing land use is utilized but is considered conservative due to the higher peak hour rates when compared to Residential Condominium/Townhouses which may also fit the proposed land use. Bozeman Office . 32 Discovery Drive . Bozeman,Montana 59718 . Ph:(406)582-0221 . Fax:(406)582-5770 Stanley Office . 299 Prairie Drive . PO Box 1251 . Stanley,North Dakota 58784 . Stanley Ph:(701)629-0245 Page 2 Haystack Development Project:16-003 April 15,2016 Table 3-1-Trip Generation-Proposed Daily AM Peak Hour PM Peak Hour Land Use ITE Units Weekday Code % % Trips Trips % % Trips Trips Rate Trips Rate Trips In Out In Out Rate Trips In Out In Out Single- Family 210 50 9.57 479 0.77 39 26 74 10 29 1.02 51 64 36 33 18 Detached Housing 4 Capacity The improvements currently proposed include only a portion of the development area previously accounted for in earlier traffic studies. The proposed condominium project also generates less traffic volume than what was originally considered for the remaining undeveloped area. Additionally, a portion of New Holland Drive will be constructed providing means of traffic distribution within the local street network. The configuration that had been planned for Breeze Lane in the original Phase 5 is being maintained as a right in right out only where it connects with Davis Lane. 5 Summary The project site was included within the planning for Phases 4 and 5 of the original West Winds Development. The local street configuration within the project site has been maintained for Breeze Lane with the connection to Davis Lane. In addition, New Holland Drive is included in the proposed improvements from Winter Park Street to Breeze Lane, improving the local street distribution network. Trip generation for the proposed condo development is less than what was originally included for the overall development area. A number of offsite improvements are planned to maintain acceptable levels of services. The improvements have been identified in Table 2-1 (above) along with the capital improvement project associated with the improvement. All improvements are planned to occur by fiscal year 2018, within the next two years. Bozeman Office . 32 Discovery Drive . Bozeman,Montana 59718 . Ph:(406)582-0221 . Fax:(406)582-5770 Page 3 Stanley Office . 299 Prairie Drive . PO Box 1251 . Stanley,North Dakota 58784 . Stanley Ph:(701)629-0245 r f r rfrf friFAl 1 it rKwi. •. .. i.' ,�. a IA f-t ..) t , I€�r�rfi)' ¢•,r..- ��. � j PROJECT SITEr r t s s Q r r r - •sad- ; ,' �1 i' r rl• 3- r f .S �r ttTX '%„ 1 i! 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PROJECT a:16-003 7 www.alliedengineeringmm o,� ,,,P„��°" VICINITY MAP i ---- j vuu„ ----idt -WINTER as—IV — _ SM WS—WS—i— —— I BRERZE LANE II I V I I I n /yq2 I �I M T ROAD C 3 --— S IV x_ o v QQQggq O I _ o U m ROAD D c I I I E a Im E -- EEL } 3 W.OAK ST. ——OHP — OHP P — OHP HP --OH -- OHP-- -- - s N C 0 75 150 225 ;I IN SCALE (FEET) CJ WEST,ST WINDS SW Civil Engineering FIGURE 2 Geotechnical Engineering SITE OVERVIEW Land Surveying DRAWN BY:ALL DATE: 04/11/20/2016 32 DISCOVERY DRIVE BOZEMAN,MT 59718 ENGINEERIEM GNG BOZEMAN MT PHONE(406)582-0221 FAX(406)582-5770 ara 4INc. PROJECT*16-003 1 w .alliedengmeedng.mm 6r1....p,.1..," SITE OVERVIEW --WS.-I- i GO z I w l j a w a I I _ 0 I I o I � r,, I BREEZE LANE I I j j I N oil r m rll x w I LL I r� % ISECTION LINE —S -SS--- a I I \ I I I O Q m N I / I I EXISTING DITCH -----"-- -- - > i E 9 -C I I 0 0 0 30 60 90 c, wl SCALE (FEET) N j U NEST WINDS SW Civil Engineering �� FIGURE 3 Geotechnical Engineering DRAWN BY: ASG �L1S BREEZE LANE - DAVIS LANE TURNING Land Surveying 32 DISCOVERY DRIVE BOZEMAN,MT 59718 ALLIED DATE: 04/11/2016 BOZEMAN MONTANA PHONE(406)582-0221 . FAX(406)582-5770 �mF PROJECT#:16-003 1 vm^.v.alltedengineedng.wm oi,., ,.,r,u1^``° TRAFFIC EXHIBIT