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HomeMy WebLinkAboutASPEN HEIGHTS STUDENT HOUSING - PDP - PDP110018 - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDYDELICH Aspen Heights TIS, November 2011 ASSOCIATES TABLE OF CONTENTS I. INTRODUCTION........................................................................................................ 1 II. EXISTING CONDITIONS .......................................................................................... 2 Land Use......................................................................................................................... 2 Streets............................................................................................................................. 2 Existing Traffic................................................................................................................. 6 Existing Operation........................................................................................................... 6 Pederstrian Facilities..................................................................................................... 10 Bicycle Facilities............................................................................................................ 10 Transit Facilities ............................................................................................................ 10 III. PROPOSED DEVELOPMENT............................................................................... 11 Trip Generation ............................................................................................................. 11 Trip Distribution ............................................................................................................. 13 Background Traffic Projections ..................................................................................... 13 Trip Assignment ............................................................................................................ 13 Signal Warrants............................................................................................................. 22 Operation Analysis ........................................................................................................ 22 Geometry ...................................................................................................................... 32 Pedestrian Level of Service........................................................................................... 32 Bicycle Level of Service ................................................................................................ 35 Transit Level of Service................................................................................................. 35 IV. CONCLUSIONS .................................................................................................... 36 LIST OF TABLES 1. Current Peak Hour Operation.................................................................................... 9 2. Trip Generation ....................................................................................................... 11 3. Short Range (2016) Background Peak Hour Operation .......................................... 23 4. Long Range (2030) Background Peak Hour Operation........................................... 25 5. Short Range (2016) Total Peak Hour Operation ..................................................... 27 6. Long Range (2030) Total Peak Hour Operation...................................................... 29 DELICH Aspen Heights TIS, November 2011 ASSOCIATES LIST OF FIGURES 1. Site Location ............................................................................................................. 3 2. Existing Geometry..................................................................................................... 4 3. Recent Peak Hour Traffic .......................................................................................... 7 4. Balanced Recent Peak Hour Traffic .......................................................................... 8 5. Site Plan.................................................................................................................. 12 6. Trip Distribution ....................................................................................................... 14 7. Short Range (2016) Background Peak Hour Traffic................................................ 15 8. Short Range (2016) Background Peak Hour Traffic with Redwood Connection ..... 16 9. Long Range (2030) Background Peak Hour Traffic................................................. 17 10. Short Range (2016) Site Generated Peak Hour Traffic........................................... 18 11. Long Range (2030) Site Generated Peak Hour Traffic............................................ 19 12. Short Range (2016) Total Peak Hour Traffic ........................................................... 20 13. Long Range (2030) Total Peak Hour Traffic............................................................ 21 14. Short Range (2016) Geometry ................................................................................ 33 15. Long Range (2030) Geometry................................................................................. 34 APPENDICES A. Base Assumptions Form B. Peak Hour Traffic Counts C. Current Peak Hour Operation/Level of Service Descriptions/Fort Collins Motor Vehicle LOS Standards (Intersections) D. Signal Warrants E. Short Range (2016) Background Peak Hour Operation F. Long Range (2030) Background Peak Hour Operation G. Short Range (2016) Total Peak Hour Operation H. Long Range (2030) Total Peak Hour Operation I. Pedestrian/Bicycle Level of Service Worksheets DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 1 I. INTRODUCTION This transportation impact study (TIS) addresses the capacity, geometric, and control requirements at and near the proposed Aspen Heights development. The proposed Aspen Heights site is located in the southwest quadrant of the Conifer/Redwood intersection in Fort Collins, Colorado. Aspen Heights is a residential development that is geared toward college students. During the course of the analysis, numerous contacts were made with the owner (Aspen Heights), the project engineer (Owen Consulting Group), the project planning consultant (The Frederickson Group), Fort Collins Traffic Engineering, and Fort Collins Transportation Planning. The Transportation Impact Study Base Assumptions form and related documents are provided in Appendix A. This study generally conforms to the format set forth in the Fort Collins TIS Guidelines in the “Larimer County Urban Area Street Standards” (LCUASS). Due to the trip generation, this is a full transportation impact study. The study involved the following steps: - Collect physical, traffic, and development data; - Perform trip generation, trip distribution, and trip assignment; - Determine peak hour traffic volumes; - Conduct capacity and operational level of service analyses on key intersections; - Analyze signal warrants; - Conduct level of service evaluation of pedestrian, bicycle, and transit modes of transportation DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 2 II. EXISTING CONDITIONS The location of the Aspen Heights development is shown in Figure 1. It is important that a thorough understanding of the existing conditions be presented. Land Use Land uses in the area are primarily residential and commercial. There are residential uses to the south, east, and northeast of the site. There are commercial uses to the north and west of the site. The proposed Aspen Heights site is currently vacant. The center of Fort Collins lies to the south of the proposed Aspen Heights. Streets The primary streets near the Aspen Heights site are North College Avenue, Hickory Street, Conifer Street, Redwood Street, Vine Drive, Blue Spruce Drive, and Linden Street. Figure 2 shows a schematic of the existing geometry at the key intersections. North College Avenue is to the west of the proposed Aspen Heights site. It is a north-south street classified as a four-lane arterial on the Fort Collins Master Street Plan. Currently, North College Avenue has a four-lane cross section in this area. At the N. College/Hickory intersection, North College Avenue has a northbound left-turn lane and two through lanes in each direction. At the N. College/Conifer intersection, North College Avenue has a southbound left-turn lane and two through lanes in each direction, and a northbound right-turn lane. At the N. College/Vine intersection, North College Avenue has a southbound left-turn lane, two through lanes in each direction, and a northbound right-turn lane. The N. College/Conifer, N. College/Hickory, and N. College/Vine intersections have signal control. The posted speed limit in this area of North College Avenue is 40 mph, north of Woodlawn Drive, and 35 mph, south of Woodlawn Drive. Hickory Street is to the northwest of the proposed Aspen Heights site. It is an east-west street classified as a two-lane collector according to the Fort Collins Master Street plan. Hickory Street only has a west leg at the N. College/Hickory intersection. Currently, Hickory Street has a two-lane cross section. At the N. College/Hickory intersection, Hickory Street has eastbound left-turn and right-turn lanes. The existing speed limit in this area of Hickory Street is 25 mph. Conifer Street is to the north of (adjacent to) the proposed Aspen Heights site. It is an east-west street classified as a two-lane collector according to the Fort Collins Master Street plan. Conifer Street only has an east leg at the N. College/Conifer intersection. Currently, Conifer Street has a two-lane cross section with parking on both sides of the street. At the N. College/Conifer intersection, Conifer Street has westbound dual left-turn lanes and a westbound right-turn lane. At the Conifer/Blue Spruce Vine College Conifer Hickory Redwood Jerome Blue Spruce Future Vine Woodlawn SCALE: 1"=1000' SITE LOCATION Figure 1 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 3 Conifer Street EXISTING GEOMETRY Figure 2 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 4 Vine Drive College Avenue Blue Spruce Drive Redwood Street Linden Street Redwood Street - Denotes Lane Hickory Street DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 5 intersection, Conifer Street has all movements combined into a single lane. At the Conifer/Redwood intersection, Conifer Street has all movements combined into a single lane. The Conifer/Blue Spruce and Conifer/Redwood intersections are stop sign controlled on Blue Spruce Drive and Redwood Street, respectively. The existing speed limit in this area of Conifer Street is 30 mph. Vine Drive is south of the proposed Aspen Heights site. It is an east-west street classified as a two-lane arterial street according to the Fort Collins Master Street Plan. Vine Drive only has an east leg at the N. College/Vine intersection. Currently, Vine Drive has a two-lane cross section. At the N. College/Vine intersection, Vine Drive has separate westbound left-turn and right-turn lanes. At the Vine/Redwood-Linden intersection, Vine Drive has all movements combined into the single lane. The Vine/Redwood-Linden intersection is stop sign controlled on Redwood Street and Linden Street. The posted speed limit in this area of Vine Drive is 35 mph. Redwood Street is east of (adjacent to) the proposed Aspen Heights site. It is a north-south street designated as a two-lane collector street according to the Fort Collins Master Street Plan. Currently, Redwood Street has a two-lane cross section with parking on both sides of the street. Redwood Street has a gap between Cajetan Street and to a point approximately 575 feet south of Lupine Drive. At the Conifer/Redwood intersection, Redwood Street has all movements combined into a single lane. At the Vine/Redwood-Linden intersection, Redwood Street has all movements combined into a single lane. The posted speed limit of Redwood Street is 30 mph from Vine Drive to Cajetan Street; 25 mph north of Conifer Street; and there is no posted limit, south of Conifer Street. Linden Street is south of the proposed Aspen Heights site. It is a north-south street designated as a two-lane collector street according to the Fort Collins Master Street Plan. Currently, Linden Street has a two-lane cross section with parking on both sides of the street. Linden Street is the south leg of the Vine/Redwood-Linden intersection. At the Vine/Redwood-Linden intersection, Linden Street has all movements combined into a single lane. The posted speed limit in this area of Linden Street is 25 mph. Blue Spruce Drive is north of the proposed Aspen Heights site. It is a north- south street classified as a local street on the Fort Collins Master Street Plan. Currently, Blue Spruce Drive has a two-lane cross section with parking on both sides of the street. Blue Spruce Drive only has a north leg at the Conifer/Blue Spruce intersection. At the Conifer/Blue Spruce intersection, Blue Spruce Drive has all movements combined into a single lane. The posted speed limit in this area of Blue Spruce Drive is 25 mph. DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 6 Existing Traffic Recent morning and afternoon peak hour traffic volumes are shown in Figure 3. The traffic counts at the N. College/Hickory, N. College/Conifer were obtained in April 2011 by the City of Fort Collins. The traffic counts at the N. College/Vine intersection were obtained in May 2011 by the City of Fort Collins. The traffic counts at the Conifer/Blue Spruce and Conifer/Redwood intersections were obtained in October 2011. Due to construction on Linden Street, recent traffic counts at the Vine/Redwood- Linden intersection were not obtained. The latest traffic counts at the Vine/Redwood- Linden intersection are from February 2008. Raw traffic count data are provided in Appendix B. Since the count at the Vine/Redwood-Linden intersection is more than a year old, the Year 2010 Total Traffic projection in the “Rocky Mountain Innovation Initiative TIS,“ dated July 2009 was used as the recent traffic with some adjustment to the north leg based on the current number of homes built in the existing development. Since the counts were done on different days, the counts were adjusted/balanced between the Conifer/Blue Spruce and Conifer/Redwood intersections. The adjusted/balanced recent peak hour traffic is shown in Figure 4. Existing Operation The N. College/Hickory, N. College/Conifer, N. College/Vine, Conifer/Blue Spruce, Conifer/Redwood, and Vine/Redwood-Linden intersections were evaluated using techniques provided in the 2000 Highway Capacity Manual. Using the morning and afternoon peak hour traffic shown in Figure 4, the peak hour operation is shown in Table 1. Calculation forms are provided in Appendix C. The key intersections are currently operating acceptably with existing control and geometry in the morning and afternoon peak hours. A description of level of service for signalized and unsignalized intersections from the 2000 Highway Capacity Manual and a table showing the Fort Collins Motor Vehicle LOS Standards (Intersections) are also provided in Appendix C. This site is in an area termed “commercial corridor.” In areas termed “commercial corridors,” acceptable overall operation at signalized intersections during the peak hours is defined as level of service D or better. At signalized intersections, acceptable operation of any leg and any movement is level of service E. At stop sign controlled intersections, acceptable level of service is listed as “not applicable” (N/A). In past transportation impact studies, “not applicable” has been interpreted as level of service E. In urban and urbanizing corridors, delays commensurate with level of service E and F are typical for minor street left-turns at stop sign controlled intersections along arterial streets during the peak hours. These delays are generally accepted by the traveling public. Conifer Street AM/PM RECENT PEAK HOUR TRAFFIC Figure 3 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 7 847/796 29/35 493/978 98/95 30/77 106/182 840/839 127/175 542/936 76/153 89/153 114/107 Vine Drive College Avenue Blue Spruce Drive Redwood Street Linden Street Redwood Street 7/1 2/2 4/4 16/5 0/3 14/8 5/14 68/205 2/6 8/0 192/145 1/5 42/107 37/107 106/52 106/97 67/33 32/113 61/77 466/989 34/55 810/755 38/50 67/79 10/44 2/5 16/64 4/1 4/3 2/1 1/0 156/207 28/30 0/8 171/175 Conifer Street AM/PM BALANCED RECENT PEAK HOUR TRAFFIC Figure 4 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 8 847/796 29/35 493/978 98/95 30/77 106/182 840/839 127/175 542/936 76/153 89/153 114/107 Vine Drive College Avenue Blue Spruce Drive Redwood Street Linden Street Redwood Street 7/1 2/2 4/4 16/5 0/3 14/8 5/14 65/203 2/6 8/0 191/144 1/5 42/107 39/108 107/52 107/98 67/33 33/115 61/77 466/989 34/55 810/755 38/50 67/79 41/49 2/5 20/70 4/1 4/3 2/1 1/0 161/218 33/49 0/8 DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 9 TABLE 1 Current Peak Hour Operation Intersection Movement Level of Service AM PM EB LT C C EB RT C C EB APPROACH C C NB LT A A NB T A A NB APPROACH A A SB T/RT A A N. College/Hickory (signal) OVERALL A A WB LT C C WB RT C C WB APPROACH C C NB T A A NB RT A A NB APPROACH A A SB LT A A SB T A A SB APPROACH A A N. College/Conifer (signal) OVERALL A A WB LT C D WB RT C C WB APPROACH C C NB T A A NB RT A A NB APPROACH A A SB LT A A SB T A A SB APPROACH A A N. College/Vine (signal) OVERALL A A Conifer/Blue Spruce EB LT/T A A (stop sign) SB LT/RT B B EB LT/T/RT A A WB LT/T/RT A A NB LT/T/RT B B Conifer/Redwood (stop sign) SB LT/T/RT B B EB LT/T/RT A A WB LT/T/RT A A NB LT/T/RT B B Vine/Redwood-Linden (stop sign) SB LT/T/RT B B DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 10 Pedestrian Facilities There are sidewalks along Redwood Street, south of Cajetan Drive and north of Conifer Drive. There is a sidewalk along the east side of Redwood Street, south of Conifer Drive. There is a pedestrian/bicycle trail through the gap in Redwood Street. Sidewalks along North College Avenue are sporadic. There are no sidewalks along either side of Vine Drive and Conifer Drive. It is expected that as properties in this area are developed or redeveloped, sidewalks will be installed as part of the street/property infrastructure. Bicycle Facilities Bicycle lanes exist along Vine Drive, Redwood Drive, Conifer Drive, and Blue Spruce Drive, within the study area. There is a pedestrian/bicycle trail through the gap in Redwood Street. On North College Avenue, bicycles utilize the shoulders. Transit Facilities Currently, this area of Fort Collins is served by Transfort Routes 8 and 81. There are bus stops near the Conifer/Blue Spruce, Conifer/Redwood, and Vine/Redwood intersections. There are also bus stops along North College Avenue. DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 11 III. PROPOSED DEVELOPMENT The Aspen Heights is a residential development with 190 units with a total of 716 bedrooms. Aspen Heights is a unique student housing concept placing residents in a house, not an apartment. It creates a secure, all-student neighborhood, with on-site amenities. Figure 5 shows a site plan of the Aspen Heights. The short range analysis (Year 2016) includes full development of the Aspen Heights and an appropriate increase in background traffic due to normal growth and other potential developments in the area. This development will build the connection of Redwood Street and the future realigned Vine Drive from the west site access (across from future Blondel Street) to Redwood Street. The connection of future Blondel Street to the future realigned Vine Drive is expected to be completed in the short range future. However, it was assumed that the use of Blondel Street would be nominal in the short range future due to convenient existing direct assess to Jerome Street and Redwood Street for the Old Town North development. The long range analysis year is considered to be 2030 and reflects the future realigned Vine Drive from North College Avenue to the existing Vine Drive to the east. The site plan shows that there will be three accesses to the site: 1) one to Conifer Street; 2) one to Redwood Street; and 3) one to the future realigned Vine Drive. Trip Generation Trip generation is important in considering the impact of a development such as this upon the existing and proposed street system. Even though many of the pads will be houses, it is expected that they will have a trip generation similar to apartments since they are geared toward student housing. Trip generation for Apartment (Code 220) with persons (beds) as the trip generation variable in Trip Generation, 8th Edition, ITE was used to estimate the trips that would be generated by the proposed Aspen Heights. A trip is defined as a one-way vehicle movement from origin to destination. The calculated trip generation is 2420 daily trip ends; 201 morning peak hour trip ends; and 286 afternoon peak hour trip ends. It is assumed and agreed to in the scoping meeting that 10 percent of the residents will use alternative modes. In all likelihood it will be greater than 10 percent. Alternative modes include bike and Transfort. The adjusted trip generation of the Aspen Heights development resulted in 2180 daily trip ends, 181 morning peak hour trip ends, and 257 afternoon peak hour trip ends. Table 2 shows the expected trip generation on a daily and peak hour basis. TABLE 2 Trip Generation Code Use Size AWDTE AM Peak Hour PM Peak Hour Rate Trips Rate In Rate Out Rate In Rate Out 220 Apartments 716 Persons EQ. 2420 0.06 43 0.22 158 0.26 186 0.14 100 Less 10% Alternative Modes 240 4 16 19 10 Total 2180 39 142 167 90 SCALE 1"=200' SITE PLAN Figure 5 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 12 DETENTION POND REC. NO. 20100038640 VINE DRIVE Future Vine Drive Redwood Street Blondel Street Blue Spruce Drive Conifer Street DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 13 Trip Distribution Trip distribution for the Aspen Heights was based on existing/future travel patterns, land uses in the area, consideration of trip attractions/productions in the area, and engineering judgment. Figure 6 shows the trip distribution for the short range (2016) and long range (2030) analysis futures. The trip distribution was agreed to by City of Fort Collins staff in the scoping meeting. Background Traffic Projections Figure 7 shows the short range (2016) background peak hour traffic projections. These forecasts assume that the current street network exists in this area. Background traffic projections for the short range were obtained by reviewing the North Front Range Regional Transportation Plan, CDOT growth factors, U.S.287/S.H.14 Access Management Report, and various traffic studies prepared for this area of Fort Collins. The other traffic studies in this area are the Jax Mercantile Expansion, CSU Engines & Energy Conversion Lab Expansion, Union Place, and Rocky Mountain Innovation Initiative. The CDOT/North College Improvement Plan has a growth factor for this area of North College Avenue of 1.7 percent per year. Based upon these sources, it was determined that the traffic volumes would increase by approximately 1.7 percent per year. The unbuilt portion of Old Town North was added to the short and long range volumes. Figure 8 shows the short range background peak hour traffic with the connection of Redwood Street between Cajetan Street and Lupine Drive. This graphic reflects a reassignment of selected movements that would likely use Redwood Street due to closing the existing gap in the street network. Figure 9 shows the long range (2030) background peak hour traffic projections. This reflects completion of the future Vine Drive, as shown in the Fort Collins Master Street Plan. However, the Fort Collins Master Street Plan shows Vine Drive as a four- lane arterial street. The traffic forecasts shown in Figure 9 do not indicate the need for a four-lane arterial street by the year 2030. The four-lane arterial street is due to the potential interchange with I-25 at Vine Drive or other significant development east of I- 25. In discussions with various Fort Collins staff, this interchange is not likely to occur by the year 2030, if at all. Significant development, east of I-25, is not likely to occur by 2030. Trip Assignment Trip assignment is how the generated and distributed trips are expected to be loaded on the street system. The assigned trips are the resultant of the trip distribution process. Figures 10 and 11 show the respective short range (2016) and long range (2030) site generated peak hour traffic assignment. Figures 12 and 13 show the respective short range (2016) and long range (2030) total (site plus background) peak hour traffic assignment. Conifer Street TRIP DISTRIBUTION Figure 6 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 14 Vine Drive Future Vine Drive College Avenue Blue Spruce Drive Lemay Avenue Redwood Street Linden Street Redwood Street SITE 10% 70% 10% 10% NOM Hickory Street Conifer Street AM/PM SHORT RANGE (2016) BACKGROUND PEAK HOUR TRAFFIC Figure 7 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 15 963/906 32/38 552/1111 107/103 33/84 115/198 970/965 144/204 612/1071 105/241 108/175 189/159 Vine Drive College Avenue Blue Spruce Drive Redwood Street Linden Street Redwood Street 9/1 2/2 4/4 17/6 0/3 15/9 6/15 72/225 2/6 9/0 210/159 1/6 46/118 43/119 118/58 118/108 74/37 37/127 66/84 519/1111 37/60 922/858 41/54 73/86 46/59 4/10 22/77 42/26 9/6 7/4 13/43 182/244 41/57 2/14 Conifer Street AM/PM SHORT RANGE (2016) BACKGROUND PEAK HOUR TRAFFIC WITH REDWOOD STREET CONNECTION Figure 8 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 16 963/906 32/38 552/1111 96/88 33/84 96/182 951/949 144/204 601/1056 116/256 108/175 207/175 Vine Drive College Avenue Blue Spruce Drive Redwood Street Linden Street Redwood Street 40/19 9/9 2/2 9/3 14/10 9/5 3/8 61/195 17/44 5/0 180/144 1/3 41/106 48/131 125/62 104/104 67/33 33/116 66/84 519/1111 37/60 922/858 41/54 73/86 46/59 11/13 22/77 60/42 13/13 23/33 24/58 182/244 41/57 Conifer Street LONG RANGE (2030) BACKGROUND PEAK HOUR TRAFFIC Figure 9 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 17 1220/1150 40/50 700/1405 135/130 40/105 145/250 1395/1470 20/10 860/1610 50/55 10/20 55/60 Vine Drive Blue Spruce Drive Redwood Street Linden Street Redwood Street 85/105 655/1405 45/75 1170/1090 50/70 90/110 40/70 15/15 30/95 20/35 25/10 15/30 25/15 230/310 45/55 30/15 255/270 90/55 AM/PM Rounded to Nearest 5 Vehicles 50/25 15/10 10/5 10/5 25/15 10/5 5/10 75/245 20/55 5/5 230/180 10/10 50/135 SHORT RANGE (2016) SITE GENERATED PEAK HOUR TRAFFIC Figure 10 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 18 4/17 74/47 14/9 13/7 20/87 4/14 4/14 0/2 1/1 13/7 3/7 7/30 6/4 25/16 0/2 1/1 25/16 7/30 20/87 74/47 Vine Drive College Avenue Blue Spruce Drive Lemay Avenue Redwood Street Linden Street AM/PM Conifer Street 7/8 3/1 0/1 1/4 1/1 1/1 5/8 0/2 28/18 2/2 6/4 0/2 0/3 1/3 9/34 3/2 3/2 1/7 19/77 1/4 2/10 4/2 9/5 65/42 LONG RANGE (2030) SITE GENERATED PEAK HOUR TRAFFIC Figure 11 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 19 4/17 14/9 4/14 0/2 1/1 13/7 4/3 25/16 0/2 1/1 99/63 27/117 Vine Drive College Avenue Blue Spruce Drive Lemay Avenue Redwood Street Linden Street AM/PM Conifer Street 7/8 3/1 0/1 1/4 1/1 1/1 5/8 0/2 26/17 2/2 6/4 1/2 2/5 1/3 8/32 3/2 3/2 1/7 19/77 1/4 2/10 4/2 9/5 65/42 Redwood Street SITE 28/16 6/4 2/8 48/32 7/31 Conifer Street AM/PM SHORT RANGE (2016) TOTAL PEAK HOUR TRAFFIC Figure 12 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 20 963/906 35/45 552/1111 103/118 39/88 121/198 976/965 144/204 608/1086 136/343 108/175 281/222 Vine Drive College Avenue Blue Spruce Drive Redwood Street Linden Street Redwood Street 47/27 12/10 2/2 9/4 15/14 9/5 4/9 62/196 22/52 5/0 180/146 1/3 66/84 525/1115 37/60 925/865 41/54 73/86 46/59 15/30 22/77 134/89 27/22 36/40 44/145 182/244 41/57 33/43 201/213 72/44 28/18 2/2 Conifer Street LONG RANGE (2030) TOTAL PEAK HOUR TRAFFIC Figure 13 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 21 1220/1155 45/55 705/1405 140/160 45/110 170/265 1495/1535 20/10 885/1725 50/55 10/20 55/60 Vine Drive Blue Spruce Drive Redwood Street Linden Street Redwood Street 85/105 665/1410 45/75 1175/1100 50/70 90/110 40/75 20/30 30/95 70/65 35/15 25/35 40/75 235/315 50/60 35/25 255/275 90/55 AM/PM Rounded to Nearest 5 Vehicles 55/35 20/10 10/5 10/5 30/20 10/5 5/10 75/245 25/65 5/5 230/185 10/10 30/15 DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 22 Signal Warrants As a matter of policy, traffic signals are not installed at any location unless warrants are met according to the Manual on Uniform Traffic Control Devices. For the roads in the vicinity of the Aspen Heights development, four hour and/or eight hour signal warrants are applicable. These warrants require much data and are applied when the traffic is actually on the area road system. It is acknowledged that peak hour signal warrants should not be applied, but since the peak hour forecasts are readily available in a traffic impact study, it is reasonable to use them to get an idea whether other signal warrants may be met. If peak hour signal warrants will not be met at a given intersection, it is reasonable to conclude that it is not likely that other signal warrants would be met. If peak hour signal warrants are met, it merely indicates that further evaluation should occur in the future as the development occurs. However, a judgment can be made that some intersections will likely meet other signal warrants. Using the short range (2016) total peak hour traffic (Figure 12), the peak hour signal warrant will not be met in the morning and afternoon peak hours at any of the key unsignalized intersections. Using the long range (2030) total peak hour traffic (Figure 13), the peak hour signal warrant will likely be met in the morning and afternoon peak hours at the N. College/Future Vine intersection. Based on the peak hour signal warrant, it is likely that other volume based signal warrants would be met at the N. College/Future Vine intersection. Therefore, the N. College/Future Vine intersection was analyzed with signal control in the long range (2030) future. It is not likely that any of the other key unsignalized intersections will meet the peak hour signal warrant. The peak hour signal warrant analyses are provided in Appendix D. The “U.S. 287/S.H. 14 Access Management Report” indicates that the N. College/Future Vine intersection will be signalized in the future, when warranted. Operation Analysis Capacity analyses were performed at the N. College/Hickory, N. College/Conifer, N. College/Vine, N. College/Future Vine, Conifer/Blue Spruce-Site Access, Conifer/Redwood, Vine/Redwood-Linden, Redwood/Lupine-Site Access, and Redwood/Future Vine intersections. The operations analyses were conducted for the short range and long range futures, reflecting year 2016 and 2030 conditions, respectively. By City Council Resolution, the City requires a roundabout analysis at appropriate intersections. This analysis was applied at the future Vine/Redwood intersection using the long range total peak hour traffic. Using the traffic volumes shown in Figure 7, the N. College/Hickory, N. College/Conifer, N. College/Vine, Conifer/Blue Spruce, Conifer/Redwood and Vine/Redwood-Linden intersections operate in the short range (2016) background traffic future as indicated in Table 3. Calculation forms for these analyses are provided in Appendix E. The key intersections will operate acceptably with the existing control and geometry. DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 23 TABLE 3 Short Range (2016) Background Peak Hour Operation Intersection Movement Level of Service AM PM EB LT C C EB RT C C EB APPROACH C C NB LT A A NB T A A NB APPROACH A A SB T/RT A A N. College/Hickory (signal) OVERALL A A WB LT C C WB RT C C WB APPROACH C C NB T A A NB RT A A NB APPROACH A A SB LT A A SB T A A SB APPROACH A A N. College/Conifer (signal) OVERALL A A WB LT D D WB RT C C WB APPROACH C D NB T B B NB RT A A NB APPROACH A B SB LT A A SB T A A SB APPROACH A A N. College/Vine (signal) OVERALL B B Conifer/Blue Spruce EB LT/T A A (stop sign) SB LT/RT B B EB LT/T/RT A A WB LT/T/RT A A NB LT/T/RT B B Conifer/Redwood (stop sign) SB LT/T/RT B B EB LT/T/RT A A WB LT/T/RT A A NB LT/T/RT C C Vine/Redwood-Linden (stop sign) SB LT/T/RT B B DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 24 Using the traffic volumes shown in Figure 9, the N. College/Hickory, N. College/Conifer, N. College/Vine, N. College/Future Vine, Conifer/Blue Spruce, Conifer/Redwood, and Vine/Redwood-Linden intersections operate in the long range (2030) background traffic future as indicated in Table 4. Calculation forms for these analyses are provided in Appendix F. The key intersections will operate acceptably. In the long range (2030), it was requested that the N. College/Hickory and N. College/Conifer intersections be analyzed as a realigned intersection, N. College/Hickory-Conifer. A figure showing the realigned N. College/Hickory-Conifer intersection peak hour volumes and calculation forms are also provided in Appendix F. The N. College/Hickory-Conifer intersection will operate acceptably. Using the traffic volumes shown in Figure 12, the N. College/Hickory, N. College/Conifer, N. College/Vine, Conifer/Blue Spruce-Site Access, Conifer/Redwood, Vine/Redwood-Linden, Redwood/Lupine-Site Access, and Redwood/Future Vine intersections operate in the short range (2016) total traffic future as indicated in Table 5. Calculation forms for these analyses are provided in Appendix G. The key intersections will operate acceptably with the existing control. The Vine/Redwood-Linden intersection calculated delay for the afternoon peak hour northbound approach was commensurate with level of service F (67.4 seconds). This is considered to be normal during the peak hours at stop sign controlled intersections along arterial streets. This is higher than the interpreted level of service E for “not applicable,” by 17.4 seconds. Since Future Vine Drive will remove much of the traffic from this intersection, it is recommended that F at the Vine/Redwood-Linden intersection be accepted in the short range future. This will be a temporary condition. Using the traffic volumes shown in Figure 13, the N. College/Hickory, N. College/Conifer, N. College/Hickory-Conifer, N. College/Vine, N. College/Future Vine, Conifer/Blue Spruce-Site Access, Conifer/Redwood, Vine/Redwood-Linden, Redwood/Lupine-Site Access, and Redwood/Future Vine intersections operate in the long range (2030) total traffic future as indicated in Table 6. Calculation forms for these analyses are provided in Appendix H. The key intersections will operate acceptably. A roundabout was also analyzed at the Future Vine/Redwood intersection. A roundabout will operate acceptably. While the roundabout will operate acceptably, this type of control may not be appropriate at the Future Vine/Redwood intersection. The approach volumes on Future Vine are 2-4 times higher than the approach volumes on Redwood Street. Roundabout control will cause significant delay to arterial street volumes on Future Vine Drive. Since the level of service E operation with stop sign control only occurs on one leg of Redwood Street during one peak hour, it is recommended that a roundabout not be considered at this intersection. DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 25 TABLE 4 Long Range (2030) Background Peak Hour Operation Intersection Movement Level of Service AM PM EB LT C C EB RT C C EB APPROACH C C NB LT A A NB T A A NB APPROACH A A SB T/RT A A N. College/Hickory (signal) OVERALL A A WB LT C D WB RT C C WB APPROACH C D NB T/RT A A SB LT A A SB T A A SB APPROACH A A N. College/Conifer (signal) OVERALL A A EB LT C D EB T/RT C D EB APPROACH C D WB LT C C WB T/RT C C WB APPROACH C C NB LT B B NB T B B NB RT B B NB APPROACH B B SB LT A B SB T C B SB RT B B SB APPROACH B B N. College/Hickory-Conifer (signal) OVERALL B C Continued on next page DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 26 Continued from previous page TABLE 4 Long Range (2030) Background Peak Hour Operation Intersection Movement Level of Service AM PM EB LT C D EB T/RT D D EB APPROACH C D WB LT D D WB T/RT C D WB APPROACH C D NB LT A A NB T B C NB RT C B NB APPROACH B C SB LT A C SB T B B SB RT A A SB APPROACH A B N. College/Future Vine (signal) OVERALL B C WB LT D D WB RT C C WB APPROACH D D NB T A A NB RT A A NB APPROACH A A SB LT A A SB T A A SB APPROACH A A N. College/Vine (signal) OVERALL A A Conifer/Blue Spruce EB LT/T A A (stop sign) SB LT/RT B B EB LT/T/RT A A WB LT/T/RT A A NB LT/T/RT B B Conifer/Redwood (stop sign) SB LT/T/RT B B EB LT/T/RT B B WB LT/T/RT B B NB LT/T/RT A A Vine/Redwood-Linden (stop sign) SB LT/T/RT A A EB LT A A WB LT A A NB LT/T/RT C C Future Vine/Redwood (stop sign) SB LT/T/RT C C DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 27 TABLE 5 Short Range (2016) Total Peak Hour Operation Intersection Movement Level of Service AM PM EB LT C C EB RT C C EB APPROACH C C NB LT A A NB T A A NB APPROACH A A SB T/RT A A N. College/Hickory (signal) OVERALL A A WB LT C C WB RT C C WB APPROACH C C NB T/RT A A SB LT A A SB T A A SB APPROACH A A N. College/Conifer (signal) OVERALL A A WB LT D E WB RT C C WB APPROACH D D NB T B B NB RT A A NB APPROACH B B SB LT A B SB T B A SB APPROACH A A N. College/Vine (signal) OVERALL B B Continued on next page DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 28 Continued from previous page TABLE 5 Short Range (2016) Total Peak Hour Operation Intersection Movement Level of Service AM PM EB LT/T/RT A A WB LT/T/RT A A NB LT/T/RT B B Conifer/Blue Spruce-Site Access (stop sign) SB LT/T/RT B B EB LT/T/RT A A WB LT/T/RT A A NB LT/T/RT B B Conifer/Redwood (stop sign) SB LT/T/RT B B EB LT/T/RT A A WB LT/T/RT A A NB LT/T/RT D F Vine/Redwood-Linden (stop sign) SB LT/T/RT C E EB LT/T/RT A A WB LT/T/RT A A NB LT/T/RT A A Redwood/Lupine (stop sign) SB LT/T/RT A A Future Vine/Redwood EB LT/RT A A (stop sign) NB LT/T A A DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 29 TABLE 6 Long Range (2030) Total Peak Hour Operation Intersection Movement Level of Service AM PM EB LT C D EB RT C C EB APPROACH C D NB LT A A NB T A A NB APPROACH A A SB T/RT A A N. College/Hickory (signal) OVERALL A A WB LT C D WB RT C C WB APPROACH C D NB T/RT A A SB LT A A SB T A A SB APPROACH A A N. College/Conifer (signal) OVERALL A A EB LT/T C D EB RT C D EB APPROACH C D WB LT/T C C WB RT c C WB APPROACH C C NB LT B B NB T B C NB RT B B NB APPROACH B B SB LT A B SB T C B SB RT B B SB APPROACH C B N. College/Hickory-Conifer (signal) OVERALL B C Continued on next page DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 30 Continued from previous page TABLE 6 Long Range (2030) Total Peak Hour Operation Intersection Movement Level of Service AM PM EB LT C D EB T/RT C D EB APPROACH C D WB LT D D WB T/RT C D WB APPROACH C D NB LT B A NB T B C NB RT D B NB APPROACH C C SB LT A C SB T B A SB RT A A SB APPROACH B B N. College/Future Vine (signal) OVERALL B C WB LT D D WB RT C C WB APPROACH D D NB T A A NB RT A A NB APPROACH A A SB LT A B SB T A A SB APPROACH A A N. College/Vine (signal) OVERALL A A Continued on next page DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 31 Continued from previous page TABLE 6 Long Range (2030) Total Peak Hour Operation Intersection Movement Level of Service AM PM EB LT/T/RT A A WB LT/T/RT A A NB LT/T/RT B B Conifer/Blue Spruce (stop sign) SB LT/T/RT B C EB LT/T/RT A A WB LT/T/RT A A NB LT/T/RT B B Conifer/Redwood (stop sign) SB LT/T/RT B B EB LT/T/RT B B WB LT/T/RT B B NB LT/T/RT A A Vine/Redwood-Linden (stop sign) SB LT/T/RT A A EB LT A A WB LT A A NB LT/T/RT C E Future Vine/Redwood (stop sign) SB LT/T/RT C D (v/c ratio lower/upper bound) EB LT 0.28/0.34 0.37/0.45 WB LT 0.31/0.38 0.31/0.38 NB LT/T/RT 0.09/0.11 0.22/0.27 Future Vine/Redwood (stop sign) SB LT/T/RT 0.14/0.17 0.12/0.15 EB LT/T/RT A A WB LT/T/RT A B NB LT/T/RT A A Redwood/Lupine-Site Access (stop sign) SB LT/T/RT A A EB LT A A WB LT A A NB LT/T/RT C C Future Vine/Blondel-Site Access (stop sign) SB LT/T/RT B B DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 32 Geometry Figure 14 shows a schematic of the short range (2016) geometry. This is the existing geometry at the N. College/Vine, Conifer/Blue Spruce-Site Access, Conifer/Redwood, and Vine/Redwood-Linden intersections. The N. College/Hickory and N. College/Conifer intersections are assumed to have side by side left-turns per the North College Improvement plan. Figure 15 shows a schematic of the long range (2030) geometry. It was assumed that the future Vine Drive will have a two-lane cross section with a center turn lane since the volumes do not support a four-lane cross section given the 2030 forecasts in this TIS. It is acknowledged that the Fort Collins Master Street Plan shows Future Vine Drive to be a 4-lane arterial street. Daily traffic forecasts from Fort Collins Transportation Planning indicate a daily volume of 17,000, between North College Avenue and Redwood Street; and a daily volume of 24,000, east of Redwood Street. These forecasts were developed with an interchange at I-25/Vine Drive. As mentioned earlier, this interchange may not be built or it may occur after 2030. It is recommended that the right-of-way for Future Vine Drive be dedicated, however, an interim 2-lane arterial cross section be developed that will accommodate the forecasted traffic plus a 1.3-1.5 times volume contingency. An eastbound right-turn lane at the Future Vine/Redwood intersection is required in the long range future. The geometry on North College Avenue at the N. College/Hickory-Conifer intersection as a realigned intersection was assumed to have northbound and southbound left-turn lanes, two through lanes in each direction, and northbound and southbound right- turn lanes. The geometry on Hickory Street and Conifer Street was assumed to be an eastbound and westbound left-turn lane and an eastbound and westbound through/right- turn lane. Pedestrian Level of Service Appendix I shows a map of the area that is within 1320 feet of the Aspen Heights development. There are four pedestrian destinations within 1320 feet of the Aspen Heights development. These are: 1) the residential area to the south; 2) the commercial area to the west; 3) the residential area to the northeast; and 4) the commercial/residential area to the north. The Aspen Heights site is located within an area termed as “commercial corridor,” which sets the level of service threshold at LOS B for all measured categories. Pedestrian level of service B is not achieved for all pedestrian destinations with regard to continuity. The Pedestrian LOS Worksheet is provided in Appendix I. There are properties that are within the pedestrian influence area that do not have sidewalks. The practical limits of pedestrian improvements would be on the Aspen Heights site itself. Conifer Street SHORT RANGE (2016) GEOMETRY Figure 14 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 33 Vine Drive College Avenue Blue Spruce Drive Redwood Street Linden Street - Denotes Lane Conifer Street LONG RANGE (2030) GEOMETRY Figure 15 DELICH ASSOCIATES Aspen Heights TIS, November 2011 Page 34 Vine Drive College Avenue Blue Spruce Drive Redwood Street Linden Street - Denotes Lane Future Vine Drive DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 35 Bicycle Level of Service Appendix I shows a map of the area that is within 1320 feet of the Aspen Heights development. There is one bicycle destination within 1320 feet of the Aspen Heights development. This is the commercial area to the west. The Bicycle LOS Worksheet is provided in Appendix I. The minimum level of service for this site is C. This site is connected to bike lanes on Redwood Street and Conifer Street. Therefore, it is concluded that level of service A can be achieved. Transit Level of Service This area of Fort Collins is served by Transfort Routes 8 and 81. There are bus stops near the Conifer/Blue Spruce, Conifer/Redwood, and Vine/Redwood intersections. There are also bus stops along North College Avenue. DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 36 IV. CONCLUSIONS This study assessed the impacts of the Aspen Heights on the street system in the vicinity of the proposed development in the short range (2016) and long range (2030) futures. As a result of this analysis, the following is concluded: - The development of the Aspen Heights is feasible from a traffic engineering standpoint. At full development, the Aspen Heights will generate approximately 2180 daily trip ends, 181 morning peak hour trip ends, and 257 afternoon peak hour trip ends. - Current operation at the N. College/Hickory, N. College/Conifer, N. College/Vine, Conifer/Blue Spruce, Conifer/Redwood, and Vine/Redwood-Linden intersections is acceptable. - The Conifer/Blue Spruce, Conifer/Redwood, and Vine/Redwood-Linden intersections are currently unsignalized. It is not likely that volume based signal warrants would be met at the Conifer/Blue Spruce, Conifer/Redwood, Vine/Redwood-Linden intersections. Using the long range (2030) total peak hour traffic forecasts, the peak hour signal warrant will likely be met in the morning and afternoon peak hours at the N. College/Future Vine intersection. Based on the peak hour signal warrant, it is likely that other volume based signal warrants would be met at this intersection in the long range (2030) future. The “U.S. 287/S.H. 14 Access Management Report” indicates that the N. College/Future Vine intersection will be signalized in the future, when warranted. - In the short range (2016) future, given development of the Aspen Heights and an increase in background traffic, the N. College/Hickory, N. College/Conifer, N. College/Vine, Conifer/Blue Spruce-Site Access, Conifer/Redwood, Vine/Redwood-Linden, Redwood/Lupine-Site Access, and Redwood/Future Vine intersections will operate acceptably with existing control and geometry. At the Vine/Redwood-Linden intersection, the calculated delay for the afternoon peak hour northbound approach will experience delays that are commensurate with level of service F (67.4 seconds). This is considered to be normal during the peak hours at stop sign controlled intersections along arterial streets. This is higher than the interpreted level of service E for “not applicable,” by 17.4 seconds. Since Future Vine Drive will take much of the traffic off of this intersection, it is recommended that F at the Vine/Redwood-Linden intersection be accepted in the short range future. This will be a temporary condition. - In the long range (2030) future, given development of the Aspen Heights and an increase in background traffic, the N. College/Hickory, N. College/Conifer, N. College/Hickory-Conifer, N. College/Future Vine, N.. College/Vine, Conifer/Blue Spruce-Site Access, Conifer/Redwood, Vine/Redwood-Linden, Redwood/Lupine- Site Access, and Redwood/Future Vine intersections will operate acceptably. A roundabout will operate acceptably at the Future Vine/Redwood intersection, however this form of traffic control is not recommended. DELICH Aspen Heights TIS, November 2011 ASSOCIATES Page 37 - The short range (2016) geometry is shown in Figure 14. The long range (2030) geometry is shown in Figure 15. - Acceptable level of service is achieved for bicycle and transit modes based upon the measures in the multi-modal transportation guidelines and future improvements to the street system in the area. Pedestrian level of service B is not achieved for all pedestrian destinations with regard to continuity. The practical limits of pedestrian improvements would be on the Aspen Heights site itself. 70/185 15/45 15/10 155/120 15/10 10/15 20/25 15/25 10/15 25/20 45/25 30/20 705/1470 160/255 5/5 1210/1305 165/255 25/20 5/5 10/10 130/200 5/5 295/225 College Avenue 20/75 65/40 5/10 5/10 55/70 5/10 10/5 NOM 65/40 10/5 NOM 10/5 25/15 5/5 5/5 50/135 0/5 60/170 85/40 40/150 10/30 165/85 135/135 0/5 30/20 NOM 10/5 30/15 NOM 5/5 10/30 305/435 10/30 5/10 360/395 5/10 6/4 41/106 0/2 48/134 67/33 34/119 9/34 128/64 107/106 1/7 19/77 45/30 1/7 2/10 34/51 2/8 9/5 0/0 65/42 7/4 0/0 8/3 8/37 65/114 0/0 107/96 0/0 32/19 Hickory Street Future Vine Drive 14/58 25/16 1/2 7/30 20/87 2/1 74/47 48/32 11/7 10/5 New Vine Drive 14/58 3/2 3/2 3/7 6/4 0/2 0/3 2/1 7/30 1/4 3/13 3/10 1/4 Hickory Street Future Vine Drive 8/37 20/81 69/44 32/19 Redwood Street SITE 3/7 6/4 Hickory Street Future Vine Drive 60/165 160/80 130/130 85/40 40/145 50/70 5/10 65/35 5/10 10/5 10/5 30/15 65/170 15/45 15/10 140/110 15/10 10/15 20/25 15/25 10/15 25/20 45/25 30/20 700/1440 140/170 5/5 1185/1290 165/250 25/20 5/5 10/10 125/200 5/5 220/180 College Avenue 290/375 10/30 310/365 5/10 30/20 10/5 29/29 201/213 72/44 30/49 2/8 44/26 1/7 7/4 8/3 Hickory Street 201/213 72/44 Hickory Street 181/188 65/40 Hickory Street 61/37 Hickory Street