The URL can be used to link to this page

Home My WebLink AboutKECHTER TOWNHOMES - FDP210002 - - TRAFFIC STUDY This document, together with the concepts and recommendations presented herein, as an instrument of service, is intended only for the specific purpose and client for which it was prepared. Reuse of and improper reliance on this document without written authorization from Kellar Engineering LLC shall be without liability to Kellar Engineering LLC. Kechter Townhomes NW Quadrant of Kechter Road and Jupiter Drive, Fort Collins, CO Traffic Impact Study KE Job #2020-033 Prepared for: Studio Architecture 1350 Pine Street, Suite 6 Boulder, CO 80302 Prepared by: www.kellarengineering.com 970.219.1602 phone December 21, 2020 Sean K. Kellar, PE, PTOE Kechter Townhomes TIS -Page 1 TABLE OF CONTENTS Page 1.0 Introduction 3 2.0 Existing Conditions and Roadway Network 3 2.1 Recent Traffic Volumes 3 3.0 Pedestrian Facilities 6 4.0 Proposed Development 6 4.1 Trip Generation 6 4.2 Trip Distribution 6 4.3 Traffic Assignment 7 4.4 Short Range Total Peak Hour Traffic 7 5.0 Traffic Operation Analysis 7 5.1 Analysis Methodology 7 5.2 Intersection Operational Analysis 8 5.3 Access Recommendation 8 5.4 Neighborhood Connections 8 6.0 Findings 18 List of Figures: Page Figure 1: Vicinity Map 4 Figure 2: Site Plan 5 Figure 3: Recent Peak Hour Traffic 11 Figure 4: 2025 Background Peak Hour Traffic 12 Figure 5: Trip Distribution 13 Figure 6: Site Generated Traffic 14 Figure 7: 2025 Short Range Total Peak Hour Traffic 15 Kechter Townhomes TIS -Page 2 TABLE OF CONTENTS (continued) List of Tables: Page Table 1: Trip Generation 10 Table 2: Recent Peak Hour Operations 16 Table 3: 2025 Background Peak Hour LOS Operations 15 Table 4: 2025 Short Range Total Peak Hour LOS Operations 17 Appendices: Page Appendix A: Recent Traffic Counts 20 Appendix B: TIS Scoping 24 Appendix C: ITE Code 220 28 Appendix D: Level of Service (LOS) Tables 33 Appendix E: Aerial Image 34 Appendix F: HCM Calculations (Synchro) 36 Kechter Townhomes TIS -Page 3 1.0 Introduction This Traffic Impact Study (TIS) is for the proposed Kechter Townhomes project located at the northwest quadrant of Kechter Road and Jupiter Drive in Fort Collins, CO. The purpose of this TIS is to identify project traffic generation characteristics, to identify potential traffic related impacts on the adjacent street system, and to develop mitigation measures required for identified traffic impacts. Kellar Engineering LLC (KE) has prepared the TIS to document the results of anticipated traffic conditions in accordance with the Larimer County Urban Area Street Standards (LCUASS) and to identify any projected impacts to the transportation system. The project is anticipated to generate approximately 395 daily weekday trips, 25 AM total peak hour trips, and 30 PM total peak hour trips. See Table 1: Trip Generation. 2.0 Existing Conditions and Roadway Network The project site is located on the north side of Kechter Road at the northwest quadrant of the Kechter Road/Jupiter Drive intersection. Kechter Road is an arterial on the Fort Collins Master Street Plan. This portion of Kechter Road currently has a thru lane each direction, bike lanes, detached sidewalks, parking on the south side, and a posted speed of 40 mph adjacent to the project site. See Figure 1: Vicinity Map. 2.1 Recent Traffic Volumes Recent peak hour turning movement counts were conducted. The traffic counts were conducted during the peak hours of adjacent street traffic in 15-minute intervals from 7:00 AM to 9:00 AM and 4:00 PM to 6:00 PM. These turning movement counts are shown in Figure 3 with the count sheets provided in Appendix A. Kechter Townhomes TIS -Page 4 Figure 1: Vicinity Map Project Site Kechter Townhomes TIS -Page 5 Figure 2: Site Plan Kechter Townhomes TIS -Page 6 3.0 Pedestrian Facilities Detached sidewalks and bike lanes exist adjacent to the project site. These detached sidewalks and bike lanes provide adequate pedestrian and bicycle facilities. 4.0 Proposed Development The proposed project consists of 54 townhome dwelling units. Primary access to the site is proposed from one full-movement access point to Kechter Road. See Table 1: Trip Generation and Figure 2: Site Plan. 4.1 Trip Generation Site generated traffic estimates are determined through a process known as trip generation. Rates and equations are applied to the proposed land use to estimate traffic generated by the development during a specific time interval. The acknowledged source for trip generation rates is the Trip Generation Report published by the Institute of Transportation Engineers (ITE). ITE has established trip generation rates in nationwide studies of similar land uses. For this study, KE used the ITE 10th Edition Trip Generation Report average trip rates. Since traffic on the adjacent streets and intersections is highest during the weekday peak hours, this study analyzed the weekday peak hour traffic. The proposed project is anticipated to generate approximately 395 daily weekday trips, 25 AM total peak hour trips, and 30 PM total peak hour trips. See Table 1: Trip Generation. 4.2 Trip Distribution Distribution of site traffic on the street system was based on the area street system characteristics, existing traffic patterns and volumes, anticipated surrounding development areas, and the proposed access system for the project. The directional distribution of traffic is a means to quantify the percentage of site generated traffic that approaches the site from a given direction and departs the site back to the original source. Figure 5 illustrates the trip distribution used for the project’s analysis. Kechter Townhomes TIS -Page 7 4.3 Traffic Assignment Traffic assignment was obtained by applying the trip distributions to the estimated trip generation of the development. Figure 6 shows the site generated peak hour traffic assignment. 4.4 Short Range Total Peak Hour Traffic Site generated peak hour traffic volumes were added to the background traffic volumes to represent the estimated traffic conditions for the short range 2025 horizon. The background (2025) and short range (2025) total traffic volumes are shown in Figure 4 and Figure 7 respectively. The traffic analysis in this study includes the traffic generated from the proposed development plus a 2% increase in background traffic per year. 5.0 Traffic Operation Analysis KE’s analysis of traffic operations in the site vicinity was conducted to determine the capacity at the identified intersection. The acknowledged source for determining overall capacity is the Highway Capacity Manual. 5.1 Analysis Methodology Capacity analysis results are listed in terms of level of service (LOS). LOS is a qualitative term describing operating conditions a driver will experience while traveling on a particular street or highway during a specific time interval. LOS ranges from an A (very little delay) to an F (long delays). A description of the level of service (LOS) for signalized and unsignalized intersections from the Highway Capacity Manual are provided in Appendix D. Kechter Townhomes TIS -Page 8 5.2 Intersection Operational Analysis Operational analysis was performed for the short range 2025 horizon. The calculations for this analysis are provided in Appendix F. Using the short range total traffic volumes, the project is projected to operate acceptably with all studied intersections and access points meeting LCUASS LOS criteria. See Table 4: 2025 Short Range Total Peak Hour Operation. 5.3 Access Recommendation The site access location and proposed turning movements to Kechter Road were reviewed. Left-turn lanes are typically required on arterials in Fort Collins. A left-turn lane currently doesn’t exist on Kechter Road. The existing width on Kechter Road is sufficient where a portion of Kechter Road could be re-striped to add this left-turn lane. In light of the above information, it is recommended that the proposed site access to Kechter Road is constructed as a full-movement access with a re-striped portion of Ketchter Road to add this eastbound left-turn lane for the site access to Kechter Road. See civil drawings for the Kechter Road re-striping plan. 5.4 Neighborhood Connections The proposed roadway connection from the project site to the adjacent neighborhood to the north was reviewed. The proposed roadway connection is via Quasar Way. This roadway connection was already planned and stubbed out to tie into for future connectivity. Per LCUASS Section 7.2.1, “All streets shall have a logical relationship to the existing topography and to the location of existing or platted streets within adjacent properties. Certain streets within the project may need to be extended to the project boundary to provide for the future logical extension of the street through adjacent properties.” This proposed connection is in compliance with LCUASS Section 7.2.1. When reviewing the project’s site generated traffic, location, and travel time/travel length; KE determined that the proposed connection will carry a small amount of traffic due to the location and the project’s low trip generation. Based upon the site layout and roadway layout, it will be quicker for a large majority of the vehicles within the project site to use the Kechter Road/Site Access intersection directly than traveling thru the adjacent Kechter Townhomes TIS -Page 9 neighborhood. See Figure 6 and Figure 7. Kechter Townhomes TIS -Page 10 Table 1: Trip Generation (ITE Trip Generation, 10th Edition) ITE Code Land Use Average Daily Trips AM Peak Hour Trips PM Peak Hour Trips Size Rate Total Rate % In In % Out Out Total Rate % In In % Out Out Total 220 Townhomes 54 DU 7.32 395 0.46 23% 6 77% 19 25 0.56 63% 19 37% 11 30 Total 395 6 19 25 19 11 30 DU = Dwelling Units Kechter Townhomes TIS -Page 11 Figure 3: Recent Peak Hour Traffic Kechter Townhomes TIS -Page 12 Figure 4: 2025 Background Traffic Kechter Townhomes TIS -Page 13 Figure 5: Trip Distribution Kechter Townhomes TIS -Page 14 Figure 6: Site Generated Traffic Kechter Townhomes TIS -Page 15 Figure 7: 2025 Short Range Total Traffic Kechter Townhomes TIS -Page 16 Table 2: Recent Peak Hour Operations Level of Service (LOS) LOS Compliance Intersection Movement AM PM LOS LOS Kechter Rd./Site Access EB Left/Thru A A Y EB Approach A A Y WB Thru/Right A A Y WB Approach A A Y SB Left/Right A A Y SB Approach A A Y Table 3: 2025 Background Peak Hour Operations Level of Service (LOS) LOS Compliance Intersection Movement AM PM LOS LOS Kechter Rd./Site Access EB Left/Thru A A Y EB Approach A A Y WB Thru/Right A A Y WB Approach A A Y SB Left/Right A A Y SB Approach A A Y Kechter Townhomes TIS -Page 17 Table 4: 2025 Short Range Total Peak Hour Operations Level of Service (LOS) LOS Compliance Intersection Movement AM PM LOS LOS Kechter Rd./Site Access EB Left/Thru A A Y EB Approach A A Y WB Thru/Right A A Y WB Approach A A Y SB Left/Right B C Y SB Approach B C Y Kechter Townhomes TIS -Page 18 6.0 Findings Based upon the analysis in this study, the proposed Kechter Townhomes project located at the northwest quadrant of Kechter Road and Jupiter Drive in Fort Collins, CO demonstrates compliance with the standards in the Larimer County Urban Area Street Standards (LCUASS) for traffic at the time of development. The findings of the TIS are summarized below: • The proposed project is anticipated to generate approximately 395 daily weekday trips, 25 AM total peak hour trips, and 30 PM total peak hour trips. • The project complies with the Levels of Service (LOS) requirements for traffic, the City of Fort Collins Transportation Plan, and the Larimer County Urban Area Street Standards (LCUASS). • The study intersection will operate acceptably and comply with the intersection levels of service (LOS) requirements in the LCUASS with the development of the project and background traffic in the 2025 Short Range Total future. • The proposed access to Kechter Road will operate safely and complies with the City’s LOS requirements. • The existing street improvements are sufficient to accommodate the proposed project’s traffic. See Section 5.2 and Section 5.3. • It is recommended that the proposed site access to Kechter Road is constructed as a full-movement access with a re-striped portion of Kechter Road to add an eastbound left- turn lane for the sitse access to Kechter Road. See Section 5.3. Kechter Townhomes TIS -Page 19 APPENDICES: Kechter Townhomes TIS -Page 20 Appendix A: Recent Traffic Counts Kechter Townhomes TIS -Page 21 Kechter Townhomes TIS -Page 22 Kechter Townhomes TIS -Page 23 Kechter Townhomes TIS -Page 24 Appendix B: TIS Scoping Kechter Townhomes TIS -Page 25 Kechter Townhomes TIS -Page 26 Kechter Townhomes TIS -Page 27 Kechter Townhomes TIS -Page 28 Appendix C: ITE Code 220 Kechter Townhomes TIS -Page 29 Kechter Townhomes TIS -Page 30 Kechter Townhomes TIS -Page 31 Kechter Townhomes TIS -Page 32 Kechter Townhomes TIS -Page 33 Appendix D: Level of Service (LOS) Table Level of Service Definitions Level of Service Signalized Intersection Unsignalized Intersection (LOS) Average Total Delay Average Total Delay (sec/veh) (sec/veh) A ≤ 10 ≤ 10 B > 10 and ≤ 20 > 10 and ≤ 15 C > 20 and ≤ 35 > 15 and ≤ 25 D > 35 and ≤ 55 > 25 and ≤ 35 E > 55 and ≤ 80 > 35 and ≤ 50 F > 80 > 50 LCUASS Table 4-3 Kechter Townhomes TIS -Page 34 Appendix E: Aerial Image Kechter Townhomes TIS -Page 35 Kechter Townhomes TIS -Page 36 Appendix F: HCM Calculations (Synchro) Recent AM Traffic Kellar Engineering LLC 3: Kechter Rd & Site Access 12/21/2020 HCM 2010 TWSC Synchro Report Sean Kellar, PE, PTOE Intersection Int Delay, s/veh 0 Movement EBL EBT WBT WBR SBL SBR Lane Configurations Traffic Vol, veh/h 0 387 344 0 0 0 Future Vol, veh/h 0 387 344 0 0 0 Conflicting Peds, #/hr 0 00000 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - - 0 - Veh in Median Storage, # - 0 0 - 0 - Grade, % - 0 0 - 0 - Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 22222 Mvmt Flow 0 421 374 0 0 0 Major/Minor Major1 Major2 Minor2 Conflicting Flow All 374 0 - 0 795 374 Stage 1 - - - - 374 - Stage 2 - - - - 421 - Critical Hdwy 4.12 - - - 6.42 6.22 Critical Hdwy Stg 1 - - - - 5.42 - Critical Hdwy Stg 2 - - - - 5.42 - Follow-up Hdwy 2.218 - - - 3.518 3.318 Pot Cap-1 Maneuver 1184 - - - 357 672 Stage 1 - - - - 696 - Stage 2 - - - - 662 - Platoon blocked, % - - - Mov Cap-1 Maneuver 1184 - - - 357 672 Mov Cap-2 Maneuver - - - - 357 - Stage 1 - - - - 696 - Stage 2 - - - - 662 - Approach EB WB SB HCM Control Delay, s 0 0 0 HCM LOS A Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1 Capacity (veh/h) 1184 ---- HCM Lane V/C Ratio ----- HCM Control Delay (s) 0 - - - 0 HCM Lane LOS A - - - A HCM 95th %tile Q(veh) 0 ---- Recent PM Traffic Kellar Engineering LLC 3: Kechter Rd & Site Access 12/21/2020 HCM 2010 TWSC Synchro Report Sean Kellar, PE, PTOE Intersection Int Delay, s/veh 0 Movement EBL EBT WBT WBR SBL SBR Lane Configurations Traffic Vol, veh/h 0 632 420 0 0 0 Future Vol, veh/h 0 632 420 0 0 0 Conflicting Peds, #/hr 0 00000 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - - 0 - Veh in Median Storage, # - 0 0 - 0 - Grade, % - 0 0 - 0 - Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 22222 Mvmt Flow 0 687 457 0 0 0 Major/Minor Major1 Major2 Minor2 Conflicting Flow All 457 0 - 0 1144 457 Stage 1 - - - - 457 - Stage 2 - - - - 687 - Critical Hdwy 4.12 - - - 6.42 6.22 Critical Hdwy Stg 1 - - - - 5.42 - Critical Hdwy Stg 2 - - - - 5.42 - Follow-up Hdwy 2.218 - - - 3.518 3.318 Pot Cap-1 Maneuver 1104 - - - 221 604 Stage 1 - - - - 638 - Stage 2 - - - - 499 - Platoon blocked, % - - - Mov Cap-1 Maneuver 1104 - - - 221 604 Mov Cap-2 Maneuver - - - - 221 - Stage 1 - - - - 638 - Stage 2 - - - - 499 - Approach EB WB SB HCM Control Delay, s 0 0 0 HCM LOS A Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1 Capacity (veh/h) 1104 ---- HCM Lane V/C Ratio ----- HCM Control Delay (s) 0 - - - 0 HCM Lane LOS A - - - A HCM 95th %tile Q(veh) 0 ---- 2025 Background AM Traffic Kellar Engineering LLC 3: Kechter Rd & Site Access 12/21/2020 HCM 2010 TWSC Synchro Report Sean Kellar, PE, PTOE Intersection Int Delay, s/veh 0 Movement EBL EBT WBT WBR SBL SBR Lane Configurations Traffic Vol, veh/h 0 445 395 0 0 0 Future Vol, veh/h 0 445 395 0 0 0 Conflicting Peds, #/hr 0 00000 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - - 0 - Veh in Median Storage, # - 0 0 - 0 - Grade, % - 0 0 - 0 - Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 22222 Mvmt Flow 0 484 429 0 0 0 Major/Minor Major1 Major2 Minor2 Conflicting Flow All 429 0 - 0 913 429 Stage 1 - - - - 429 - Stage 2 - - - - 484 - Critical Hdwy 4.12 - - - 6.42 6.22 Critical Hdwy Stg 1 - - - - 5.42 - Critical Hdwy Stg 2 - - - - 5.42 - Follow-up Hdwy 2.218 - - - 3.518 3.318 Pot Cap-1 Maneuver 1130 - - - 304 626 Stage 1 - - - - 657 - Stage 2 - - - - 620 - Platoon blocked, % - - - Mov Cap-1 Maneuver 1130 - - - 304 626 Mov Cap-2 Maneuver - - - - 304 - Stage 1 - - - - 657 - Stage 2 - - - - 620 - Approach EB WB SB HCM Control Delay, s 0 0 0 HCM LOS A Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1 Capacity (veh/h) 1130 ---- HCM Lane V/C Ratio ----- HCM Control Delay (s) 0 - - - 0 HCM Lane LOS A - - - A HCM 95th %tile Q(veh) 0 ---- 2025 Background PM Traffic Kellar Engineering LLC 3: Kechter Rd & Site Access 12/21/2020 HCM 2010 TWSC Synchro Report Sean Kellar, PE, PTOE Intersection Int Delay, s/veh 0 Movement EBL EBT WBT WBR SBL SBR Lane Configurations Traffic Vol, veh/h 0 726 482 0 0 0 Future Vol, veh/h 0 726 482 0 0 0 Conflicting Peds, #/hr 0 00000 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - - 0 - Veh in Median Storage, # - 0 0 - 0 - Grade, % - 0 0 - 0 - Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 22222 Mvmt Flow 0 789 524 0 0 0 Major/Minor Major1 Major2 Minor2 Conflicting Flow All 524 0 - 0 1313 524 Stage 1 - - - - 524 - Stage 2 - - - - 789 - Critical Hdwy 4.12 - - - 6.42 6.22 Critical Hdwy Stg 1 - - - - 5.42 - Critical Hdwy Stg 2 - - - - 5.42 - Follow-up Hdwy 2.218 - - - 3.518 3.318 Pot Cap-1 Maneuver 1043 - - - 175 553 Stage 1 - - - - 594 - Stage 2 - - - - 448 - Platoon blocked, % - - - Mov Cap-1 Maneuver 1043 - - - 175 553 Mov Cap-2 Maneuver - - - - 175 - Stage 1 - - - - 594 - Stage 2 - - - - 448 - Approach EB WB SB HCM Control Delay, s 0 0 0 HCM LOS A Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1 Capacity (veh/h) 1043 ---- HCM Lane V/C Ratio ----- HCM Control Delay (s) 0 - - - 0 HCM Lane LOS A - - - A HCM 95th %tile Q(veh) 0 ---- 2025 Short Range Total AM Traffic Kellar Engineering LLC 3: Kechter Rd & Site Access 12/21/2020 HCM 2010 TWSC Synchro Report Sean Kellar, PE, PTOE Intersection Int Delay, s/veh 0.3 Movement EBL EBT WBT WBR SBL SBR Lane Configurations Traffic Vol, veh/h 2 445 395 3 10 8 Future Vol, veh/h 2 445 395 3 10 8 Conflicting Peds, #/hr 0 00000 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - - 0 - Veh in Median Storage, # - 0 0 - 0 - Grade, % - 0 0 - 0 - Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 22222 Mvmt Flow 2 484 429 3 11 9 Major/Minor Major1 Major2 Minor2 Conflicting Flow All 432 0 - 0 919 431 Stage 1 - - - - 431 - Stage 2 - - - - 488 - Critical Hdwy 4.12 - - - 6.42 6.22 Critical Hdwy Stg 1 - - - - 5.42 - Critical Hdwy Stg 2 - - - - 5.42 - Follow-up Hdwy 2.218 - - - 3.518 3.318 Pot Cap-1 Maneuver 1128 - - - 301 624 Stage 1 - - - - 655 - Stage 2 - - - - 617 - Platoon blocked, % - - - Mov Cap-1 Maneuver 1128 - - - 300 624 Mov Cap-2 Maneuver - - - - 300 - Stage 1 - - - - 654 - Stage 2 - - - - 617 - Approach EB WB SB HCM Control Delay, s 0 0 14.7 HCM LOS B Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1 Capacity (veh/h) 1128 - - - 390 HCM Lane V/C Ratio 0.002 - - - 0.05 HCM Control Delay (s) 8.2 0 - - 14.7 HCM Lane LOS A A - - B HCM 95th %tile Q(veh) 0 - - - 0.2 2025 Short Range Total PM Traffic Kellar Engineering LLC 3: Kechter Rd & Site Access 12/21/2020 HCM 2010 TWSC Synchro Report Sean Kellar, PE, PTOE Intersection Int Delay, s/veh 0.2 Movement EBL EBT WBT WBR SBL SBR Lane Configurations Traffic Vol, veh/h 9 726 482 9 5 5 Future Vol, veh/h 9 726 482 9 5 5 Conflicting Peds, #/hr 0 00000 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - - 0 - Veh in Median Storage, # - 0 0 - 0 - Grade, % - 0 0 - 0 - Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 22222 Mvmt Flow 10 789 524 10 5 5 Major/Minor Major1 Major2 Minor2 Conflicting Flow All 534 0 - 0 1338 529 Stage 1 - - - - 529 - Stage 2 - - - - 809 - Critical Hdwy 4.12 - - - 6.42 6.22 Critical Hdwy Stg 1 - - - - 5.42 - Critical Hdwy Stg 2 - - - - 5.42 - Follow-up Hdwy 2.218 - - - 3.518 3.318 Pot Cap-1 Maneuver 1034 - - - 169 550 Stage 1 - - - - 591 - Stage 2 - - - - 438 - Platoon blocked, % - - - Mov Cap-1 Maneuver 1034 - - - 166 550 Mov Cap-2 Maneuver - - - - 166 - Stage 1 - - - - 581 - Stage 2 - - - - 438 - Approach EB WB SB HCM Control Delay, s 0.1 0 19.7 HCM LOS C Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1 Capacity (veh/h) 1034 - - - 255 HCM Lane V/C Ratio 0.009 - - - 0.043 HCM Control Delay (s) 8.5 0 - - 19.7 HCM Lane LOS A A - - C HCM 95th %tile Q(veh) 0 - - - 0.1