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HomeMy WebLinkAboutALPINE BUSINESS PARK - PDP - 2-07 - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDY0 CONCLUSIONS Based on the above documented analyses, investigations and findings, the following can be concluded: • Operating conditions at the Alpine Street — North College Avenue intersection are acceptable based on City standards. • Alpine Business Park will generate 19 new morning peak hour trips, 27 new after- noon peak hour trips, and 313 daily trips on the area street system. • No improvements are needed with this development. • With this development fully operational, intersection operations will be acceptable at all key intersections. Levels of service will, in fact, replicate current conditions. • This development will enhance the area pedestrian system by constructing sidewalk adjacent to the site. With the existing facilities and the planned improvement pedes- trian levels of service will be acceptable. • Bicycle levels of service will be acceptable given the adjacent on -street bicycle lane on North College Avenue and planned improvements to Alpine Street. • Alpine Business Park is viable from a traffic engineering standpoint. I trust this letter will satisfy the City's requirement for a traffic memorandum for this develop- ment. Please give me a call if you have any questions or need further assistance. Sincerely, Ar 4ene G. Coppo a, E. .5 15945 w:yr= •; 2: c • NAB :�.4j/., OF • •O`� ` �4' �kC+kCtCdn�)\ SHORT-TERM OPERATING CONDITIONS WITH PROJECT Intersection Control Movement/ Direction Level of Service AM Pk Hr. PM Pk Hr. College — Alpine Stop NB L B B EB LR C C Alpine — Access Stop WB L A A NB LR A A As indicated, acceptable intersection operations are expected through the short-term with Alpine Business Park fully functional. All traffic movements will operate at level of service `C' or better which is acceptable under Fort Collins' standards. It is meaningful to note that even with Alpine Business Park fully developed, future conditions will replicate current condi- tions. Consequently, no noticeable impact is expected. Capacity worksheets are attached. PEDESTRIAN/BICYCLE CONSIDERATIONS Sidewalks will be built along the west side of North College Avenue and the south side of Alpine Street adjacent to this site with this development. The planned sidewalk along the west side of North College Avenue will connect to the existing sidewalk to the south. It will, therefore, enhance and expand the local area sidewalk system and provide easy pedestrian access to the adjacent business. Given the anticipated land uses, there will be reasonable pedestrian continuity in the study area. On -street bicycle lanes currently exist along North College Avenue. These lanes connect to other facilities providing bicycle access to this development. Given the availability of adja- cent on -street bicycle lanes, acceptable bicycle connectivity will be achieved. 12 Alpine ITT 0 U Figure 7 SHORT-TERM ROADWAY GEOMETRY 11 Alpine ■T1 LEGEND: AM/PM Peak Hour N = Nominal Mir NOTE: Rounded to nearest 5 vehicles. Figure 6 SHORT-TERM TOTAL TRAFFIC 10 Q q �Ltd Alpine z `o rn 0 0 LEGEND: AM/PM Peak Hour N = Nominal NOTE: Rounded to nearest 5 vehicles. Figure 5 9 SHORT-TERM BACKGROUND TRAFFIC I .q ._J FUTURE TRAFFIC Current traffic was increased to estimate background traffic at the opening of Alpine Busi- ness Park. This effort used CDOT published growth rates for North College Avenue. The year 2008 was selected to represent the short-term horizon. Background traffic for 2008 is shown in Figure 5. Total morning peak hour traffic, which is the combination of site traffic and background traf- � (A fic, is shown on Figure 6 for short-term conditions. It should be noted that no downward ad- justments were made to reflect pass -by traffic on North College Avenue since overall site traffic is minor. AUXILIARY LANES T2 Short-term traffic estimates were reviewed from an auxiliary lane standpoint. This review used CDOT's State Highway Access Code criteria for an NR B Roadway having a 40 mile per hour speed limit as well as City criteria. It was determined that a right -turn deceleration lane on southbound College Avenue will not be warranted with this development. Given the availability of an existing northbound left turn lane on College Avenue, no auxiliary lane im- provements will be needed with Alpine Business Park. - SHORT-TERM GEOMETRY Alpine Street will be built to a collector roadway without parking from North College Avenue to the site driveway with this development. Short-term roadway geometry is shown on Fig- ure 7. Additionally, sidewalk will be constructed along the south side of Alpine Street and the west side of College Avenue adjacent to the site. FUTURE OPERATING CONDITIONS q' To assess future conditions, capacity analyses procedures were utilized at the site access intersection with Alpine Street and the North College Avenue — Alpine Street intersection. Resultant levels of service are shown for short-term conditions with Alpine Business Park fully built. 8 tit Alpine 114, q i7 LEGEND: AM/PM Peak Hour N = Nominal NOTE: Rounded to nearest 5 vehicles. I 00LO 0(D �0') 0 0 0 I Figure 4 7 PEAK HOUR SITE TRAFFIC Site traffic was developed using Institute of Transportation Engineers' (ITE) publication, "Trip Generation, Seventh Edition". The quick lubrication shop, self -serve carwash and light in- dustry land uses were selected as the 'best fit' for the uses proposed in Alpine Business Park. Resultant site traffic is presented in the following table. Use Size Daily AM Peak Hour PM Peak Hour Rate Trips Rate In Out Rate In Out Quick Lube 3 Bays 40 120 4.0 6 6 5.19 8 8 Carwash 2 Bays 108 216 2.77 3 2 5.54 6 5 Industrial 11,800 SF 6.97 82 0.92 10 2 0.98 2 11 TOTAL 418 19 10 16 24 As indicated, Alpine Business, Park will generate 29 morning peak hour trips, 40 afternoon peak hour trips and 418 trips per day. RU The proposed uses will draw some 10% of their customers from traffic already on the adja- cent street system and some site traffic presently exists with the existing quick lube shop on this site. Accordingly, the following new trips are expected from this development. I NEW SITE TRIPS AM Peak Hour Trips PM Peak Hour Trips Daily 19 27 313 As indicated the Alpine Business Park will add 19 morning peak hour trips, 27 afternoon peak hour trips, and 313 daily trips to the area street system. Site traffic is expected to arrive and depart the site equally between the areas north and south of the site. This. distribution results in the peak hour site traffic shown on Figure 4. 19 M1 lI if I I Al I II \� Ir \: ,. �' ^'i \ , , I \ f� r i s I• /. r i ` it ' iLi! I al Figure 3 CONCEPT PLAN M V O N �l Alpine 2/1 M 2/0 —� `N co LO O W N d OI d O U LEGEND: AM/PM Peak Hour Figure 2 4 CURRENT TRAFFIC Alpine tl d rn d 0 U Figure 1 CURRENT ROADWAY GEOMETRY 3 0 q I I i I I EXISTING CONDITIONS North College Avenue (SH 287) is a four lane arterial roadway with turn lanes, as needed. Immediately adjacent to the Alpine Business Park site, there is a painted center left turn lane and two through lanes of traffic in each direction. It has a 40 mile per hour speed limit and is under CDOT control. The available sight distance is acceptable in both directions. Alpine Street is a dirt roadway extending west of North College Avenue. It is planned to be a future collector roadway. Currently, Alpine Street has one lane in each direction. Current roadway geometry is shown on Figure 1. Recent peak hour counts were collected at the North College Avenue (SH 287) — Alpine Street intersection during both peak hours. This information is shown on Figure 2 with count tabulations attached. Current operating conditions were evaluated at the North College Avenue — Alpine Street intersection using highway capacity analysis procedures. Resultant peak hour levels of ser- vice for peak hours are shown below. CURRENT OPERATING CONDITIONS Intersection Control Movement/ Direction Level of Service AM Pk Hr. PM Pk Hr. College — Alpine Stop NB L B B EB LR C C Based on City criteria, current operating conditions are acceptable. Capacity work sheets are attached. PROJECT DESCRIPTION Alpine Business Park will be a blend of auto care and industrial land uses. It will have three quick lube bays, two carwash bays, and some 11,800 square feet of industrial space. Ac- cess will be provided via a full movement driveway to Alpine Street leading to North College Avenue. Secondary access will be provided by a connection to The Human Bean to the south. Businesses are expected to be open from about 7:30 A.M. — 6:00 P.M. with the car - wash open 24 hours. A concept plan is provided on Figure 3. 2 0 Tel: 303-792-2450 P.O. Box 260027 Fax: 303-792-5990 nmenm EUGENE G. COPPOLA P.E. Littleton, CO 80163-0027 December 14, 2006 Grem Armstrong Gara LLC P.O. Box 270114 Fort Collins, CO 80527 RE: Traffic Memorandum Alpine Business Park 825 North College Avenue - Fort Collins, Colorado Dear Mr. Armstrong: I am writing to document my investigation into the traffic impacts of Alpine Business Park. The site is located in the southwest corner of the Alpine Street — North College Avenue in- tersection in Fort Collins, Colorado. It will occupy the site currently used by the two bay quick lube shop. Key elements of the investigation are documented in this traffic memoran- dum. AGENCY MEETINGS It A scoping meeting was held with Mr. Eric Bracke, Fort Collins Traffic Engineer, to precisely define the level of effort required to adequately assess the transportation impacts of the pro- posed development. Specific study parameters are indicated on the Basic As.sumP tions worksheet which is attached. This memorandum conforms with the agreed upon assump- tions and scope.