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HomeMy WebLinkAbout06 HeadwatersTIS Headwaters Academy Traffic Impact Study Bozeman, Montana Prepared For: Allied Engineering Services, Inc. 32 Discovery Drive Bozeman, MT 59718 November, 2019 130 South Howie Street Helena, Montana 59601 406-459-1443 Headwaters Academy Traffic Impact Study Bozeman, Montana i Table of Contents A. Executive Summary ......................................................................................1 B. Project Description ........................................................................................1 C. Existing Conditions ........................................................................................1 Adjacent Roadways ..............................................................................2 Traffic Counts ........................................................................................3 Historic Traffic Data ...............................................................................3 Bozeman Transportation Plan ...............................................................4 Level of Service .....................................................................................5 D. Proposed Development ..............................................................................6 E. Trip Generation and Assignment ................................................................6 F. Trip Distribution ..........................................................................................8 G. Traffic Impacts Outside of the Development ...............................................8 H. Long Range Traffic Projections ..................................................................9 I. Impact Summary & Recommendations .................................................... 10 List of Figures Figure 1 – Proposed Development Site ...................................................................2 Figure 2 – Proposed Development ..........................................................................7 Figure 3 – Trip Distribution ......................................................................................8 List of Tables Table 1 – Historic Average Daily Traffic Data ..........................................................4 Table 2 – Existing Level of Service Summary .........................................................5 Table 3 – Trip Generation Rates .............................................................................6 Table 4 – Projected Level of Service Summary ......................................................9 Headwaters Academy Traffic Impact Study Bozeman, Montana Abelin Traffic Services 1 November, 2019 Headwaters Academy Traffic Impact Study Bozeman, Montana A. EXECUTIVE SUMMARY The new Headwaters Academy campus is currently proposed for construction north of Durston Road at 10th Avenue in Bozeman, MT. The middle-school campus would be developed for the school’s current population of 59 students and may be increased to 90 students in the future. The campus would be completed in 2020 and would produce up to 192 new daily vehicle trips at maximum capacity (90 students). As proposed, the new Headwaters Academy will not create any roadway capacity problems in this area. No roadway improvements are recommended with the project. B. PROJECT DESCRIPTION This document studies the possible effects on the surrounding road system from the new Headwaters Academy campus located on Durston Road in Bozeman, Montana. The document also identifies any traffic mitigation efforts that the developments may require. The Headwaters Academy campus was previously located on West Garfield Street and has recently been operating out of Hope Lutheran Church. The school is planning to construct a new campus at 1005 Durston Road and move operations to this new location in the fall of 2020. The school currently has 59 students and would host a maximum of 90 students at the new campus. Based on the City of Bozeman Subdivision Regulations, the developers must study all effected intersections within ½ mile of a proposed development. This includes the intersections of Durston Road with 9th Avenue, 10thAvenue, 11th Avenue, and 15th Avenue. The City of Bozeman did not request a detailed analysis of the intersection of Durston Road with North 7th Avenue. C. EXISTING CONDITIONS The new Headwaters Academy campus is proposed for construction north of Durston Road at 10th Avenue in Bozeman, Montana. The site currently consists of a single-family residential home on three acres of land. Bozeman High School is located to the south of the site along 11th Avenue. See Figure 1 for a location map of the proposed development. Headwaters Academy Traffic Impact Study Bozeman, Montana Abelin Traffic Services 2 November, 2019 Figure 1- Proposed Development Site Adjacent Roadways Durston Road is a two-way, east/west minor arterial route that extends through the middle of Bozeman. The road crosses Rouse Avenue to the east and North 7th Avenue, 19thAvenue, and Cottonwood Road to the west. West of North 7th Avenue, Durston Road has a paved width of 42 feet and includes a center left-turn lane and bike lanes. The road has four-foot wide sidewalks on the north and south sides with no on-street parking. Durston Road is signal controlled at the intersections with 19th Avenue, 15th Avenue, 7th Avenue, and Rouse Avenue. Marked and signed crosswalks are included at 11th Avenue and 9th Avenue. The posted speed limit in this area is 30 MPH. Traffic data collected in 2018 by MDT indicates that Durston Road carries 10,000 Vehicles Per Day (VPD) west of North 7th Avenue. 11th Avenue is a two-way north/south collector route that extends south from Durston Road. The road has a paved width of 42 feet with on-street parking on both sides. Parking on east side is restricted to residential use only. The intersection with Durston Road has marked crosswalks and separated left and right-turn lanes. The posted speed limit on 11th Avenue is 15 MPH from 8:00 AM to 4:30 PM. 10th Avenue is a north/south local road that extends south from Durston Road. The road provides access to the residential areas east of Bozeman High School. The road has a paved Headwaters Academy Traffic Impact Study Bozeman, Montana Abelin Traffic Services 3 November, 2019 width of 34 feet with on-street parking on both sides and sidewalks. The posted speed limit on 10th Avenue is 25 MPH. 9th Avenue is a north/south local road that extends south from Durston Road. The road provides access to the residential areas east of Bozeman High School. The road has a paved width of 34 feet with on-street parking on both sides and sidewalks. The intersection with Durston Road has a marked and signed crosswalk. The posted speed limit on 9th Avenue is 25 MPH. Traffic Counts The traffic data used for this report was collected on the surrounding road system by ATS in November of 2019. The collected data includes turning movement counts at the intersections of Durston Road with 9thAvenue, 10thAvenue, 11thAvenue, and 15th Avenue. Refer to Figure 1 for detail of the data collection/acquisition sites. The raw traffic data is included in Appendix A of this report. Peak traffic periods at public schools typically occur during the morning drop-off and afternoon pick-up periods. The peak morning traffic period near schools generally occur at the same time or slightly after the typical AM peak traffic period for commuter traffic. In this instance the peak traffic period near Bozeman High School occurred between 8:00 and 8:15 A.M. The peak afternoon traffic period at the school occurred between 3:30 and 3:45 PM and does not overlap the with typical peak period of commuter traffic between 5:00 and 6:00 PM. While the evening peak period had a slightly 1ower 15-minute peak traffic volume, the evening peak traffic period is much longer in duration. Since schools typically produce relatively little traffic during the typical commuter evening peak traffic period between 5:00 and 6:00 PM, no specific traffic analysis was done for the evening peak traffic period for this study. The 15-minute interval traffic volumes along Durston Road are shown in Figure 2. Historic Traffic Data Abelin Traffic Services obtained historic traffic data for area roadways from the Montana DOT which is presented in Table 1. The traffic data history for this area indicates that traffic volumes on this section of Durston Road have remained relatively constant over the past ten years despite high levels of traffic growth in other portions of Bozeman. Headwaters Academy Traffic Impact Study Bozeman, Montana Abelin Traffic Services 4 November, 2019 Figure 2-Durston Road Daily Traffic Profile Data Collected By MDT 7:00 AM to 7:00 PM 9-1-15 Table 1 – Historic Average Daily Traffic Data Location 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Durston Road E of 9th Ave. #16-3B-044 9,670 9,040 9,000 9,770 9,400 11,170 10,120 9,419 8,734 10,077 Durston Road E of 15th Ave #16-3B-043 10,560 10,280 10,240 10,440 10,600 13,200 11,760 8,888 8,155 8,163 Durston Road E of N 19th Ave #16-3B-042 10,250 10,180 10,140 10,190 10,920 10,700 11,410 10,657 9,584 10,726 2017 Bozeman Transportation Master Plan The 2017 Bozeman Transportation Master Plan projects traffic conditions on roadways throughout Bozeman through 2040 and provides short-term and long-term recommendations for the roadway network. The plan contains a variety of recommendations for the roadways in this area. These improvements include: 0 50 100 150 200 250 300 350 7:00 8:00 9:00 10:00 11:00 12:00 1:00 2:00 3:00 4:00 5:00 6:00 Durston Road 15-Min Traffic Volumes School Peak Traffic Periods Commuter PM Peak Traffic Period Headwaters Academy Traffic Impact Study Bozeman, Montana Abelin Traffic Services 5 November, 2019 Committed MSN Improvements MSN-3 N. 11th Avenue (Durston Road to Oak Street): Construct North 11th Avenue from the intersection with Durston Road to the intersection with Oak Street to a two-lane urban collector standard. (Estimated Cost $1,120,000). Recommended TSM Improvements TSM-31 Durston Road and N. 15th Avenue: Consider a single-lane roundabout to better meter traffic flows. All four legs of the intersection receive approximately equal traffic and its proximity to the schools warrants long term improvements to the intersection. (Estimated Cost $2,000,000) Neither of these projects are on the City of Bozeman Capital Improvements Program for Fiscal Years 2017-2021. It is not clear when these projects may be implemented. Level of Service Using the data collected for this project, ATS conducted a Level of Service (LOS) analysis at area intersections. This evaluation was conducted in accordance with the procedures outlined in the Transportation Research Board’s Highway Capacity Manual (HCM) - Special Report 209 and the Highway Capacity Software (HCS) version 7.8. Intersections are graded from A to F representing the average delay that a vehicle entering an intersection can expect. Typically, a LOS of C or better is considered acceptable for peak-hour conditions. Table 2 shows the existing 2019 LOS for the AM and PM peak hours excluding generated traffic from the Headwaters Academy. The LOS calculations are included in Appendix C. The table shows that all of the intersections within the study area are functioning at an acceptable LOS under current peak traffic conditions. The traffic signal at 15th Avenue is operating with considerable reserve capacity. No roadway modification are needed to meet the current traffic demand at the study intersections. Table 2 – Existing 2019 Level of Service Summary AM Peak Hour PM Peak Hour Intersection Delay (Sec.) LOS Delay (Sec.) LOS Durston Road & 15th Avenue 13.2 B 15.3 B Durston Road & 11th Avenue* 15.4 C 19.7 C Durston Road & 10th Avenue* 14.3 B 13.0 B Durston Road & 9th Avenue* 12.2 B 13.4 B *North/South Side Street LOS and Delay Headwaters Academy Traffic Impact Study Bozeman, Montana Abelin Traffic Services 6 November, 2019 D. PROPOSED DEVELOPMENT The development currently under consideration for this site includes three acres of land located north of Durston Road at 10th Avenue which would be developed into the new Headwaters Academy campus. The existing residential home would be converted for use at the Academy and a new classroom building would be constructed on the site. There are currently 59 students enrolled at the Academy and the campus would be developed to include space for a maximum 90 students in the future. Access to the site would be from a new approach onto Durston Road at an extension of 10th Avenue. The project would include 52 on-site parking spaces to meet City of Bozeman standards. The Headwaters Academy site plan is shown in Figure 3. E. TRIP GENERATION AND ASSIGNMENT ATS performed a trip generation analysis to determine the anticipated future traffic volumes from the proposed development using the trip generation rates contained in Trip Generation (Institute of Transportation Engineers, Tenth Edition). These rates are the national standard and are based on the most current information available to planners. A vehicle “trip” is defined as any trip that either begins or ends at the development site. ATS determined that the critical traffic impacts on the intersections and roadways would occur during the weekday morning and afternoon peak hours. According to the ITE trip generation rates the development would produce 63 AM peak hour trips, 32 PM peak hour trips, and 192 daily trips at full build-out. See Table 3 for detailed trip generation information. Table 3 - Trip Generation Rates Land Use Stud. AM Peak Hour Trip Ends per Unit Total AM Peak Hour Trip Ends Afternoon Peak Hour Trip Ends per Unit Total PM Peak Hour Trip Ends Weekday Trip Ends per Unit Total Weekday Trip Ends Middle School ITE #522 90 0.7 63 0.35 32 2.13 192 These estimates match closely with the current estimates of vehicle trip generation from the Headwaters Academy. At present, 33% of students attending the Headwaters Academy use the student shuttle bus and 20% have siblings attending class at Bozeman High School. An estimated 10% of students currently walk to school. Headwaters Academy Traffic Impact Study Bozeman, Montana Abelin Traffic Services 7 November, 2019 Figure 3 – Proposed Development Headwaters Academy Traffic Impact Study Bozeman, Montana Abelin Traffic Services 8 November, 2019 The most basic estimate for vehicle trips from a school is four trips per student (one trip in and one trip out of the site in both the AM and PM peak periods). Using this estimate, the Headwaters Academy would produce approximately 90 x 4= 360 daily vehicle trips. Using the reductions from the shuttle bus (33%), walking/biking (10%), and multi-family/high-school trips (10%-20%), it is reasonable to estimate a 50% reduction from the basic trip volumes for this type of school. When this reduction is taken into account, the total daily trip generation from the school would be 360 / 2 = 180 daily vehicle trips with 90 students. This estimate is close to the 192 trip estimate from the ITE trip generation manual. For the purposes of this report, the ITE trip generation values were used with no additional reductions. F. TRIP DISTRIBUTION The traffic distribution and assignment for the proposed subdivisions was based upon the existing ADT volumes along the adjacent roadways and the peak-hour turning volumes. Traffic is expected to distribute onto the surrounding road network as shown on Figure 4. Figure 4 – Trip Distribution G. TRAFFIC IMPACTS OUTSIDE OF THE DEVELOPMENT Using the trip generation and trip distribution numbers, ATS determined the future Level of Service for the area intersections. The anticipated intersection LOS with the Headwaters Academy is shown in Table 4. The traffic volume calculations are included in Appendix B of this report. 40% to 7th Avenue 9 th Av e n u e 1 0 th Av e n u e 15 th Av e n u e 5% 5% 10% 11 th Av e n u e Durston Road Headwaters Academy 5% 30% to 19th Avenue 5% Headwaters Academy Traffic Impact Study Bozeman, Montana Abelin Traffic Services 9 November, 2019 The table indicates that the development of the Headwaters Academy on Durston Road will have little impact on the LOS of the surrounding road network. The LOS at most area intersections will increase by less than a second per vehicle. Total daily traffic volume increases on Durston Road will be 100 VPD (1% of current AADT). Peak-hour Traffic volume increases on 11th Avenue will be 2-3% and 1% on 15th Avenue. An estimated 40% (80 VPD) of traffic will flow towards 7th Avenue and 30% (60 VPD) will flow towards 19th Avenue. No road improvements would be needed to support the vehicular traffic from the proposed development. Table 4 –Projected Level of Service Summary AM Peak Hour PM Peak Hour Intersection Delay (Sec.) LOS Delay (Sec.) LOS Durston Road & 15th Avenue 13.8 B 15.5 B Durston Road & 11th Avenue 15.7 C 20.2 C Durston Road & 10th Avenue 17.0/13.5 C/B 14.4/13.9 B/B Durston Road & 9th Avenue 13.2 B 13.6 B *North/South Side Street LOS and Delay The Headwaters Academy may want to explore some improvements to the pedestrian facilities in this area and minor changes to the site plan to improve traffic flow within the school parking lot. The existing pedestrian crossings on Durston Road currently have relatively little pedestrian activity. Only ten pedestrians were observed crossing Durston Road at both locations during the two peak-hour traffic counts. The current pedestrian crossing configuration is sufficient to meet the current demands. If the Headwaters Academy plans to coordinate student actives with Bozeman High School in the future (not currently planned), then it may be desirable to add a flashing pedestrian beacon at 11th Avenue such as the one recently installed on 15th Avenue near the new High School stadium. This improvement is not currently warranted for this project. H. LONG RANGE TRAFFIC PROJECTIONS The 2017 Bozeman Transportation Master Plan (BTMP) projects traffic conditions on roadways throughout Bozeman through 2040, considering all anticipated land development projects which are expected to occur in this area of Bozeman over the next 25 years. The BTMP suggests that traffic volumes on Durston Road will increase from 11,000 to approximately 13,000 near 19th Avenue by 2040. This is much smaller increase in traffic volumes than is expected on the roadways in the rest of Bozeman, but is consistent with the exiting traffic volume growth trends along this portion of road. In order to evaluate the 15-year traffic volume projections for this area ATS reviewed the 2040 traffic volumes from the Bozeman Transportation Master Plan and scaled the anticipated traffic volume growth to likely 2034 conditions using an overall traffic volume growth rate of 15%. This growth factor was applied in addition to the projected traffic volumes calculated for the Headwaters Academy. The results indicate that most of the study intersections would function adequate through at least 2034 with the added traffic from the Headwaters Academy and the overall background traffic growth in this area. It is possible that the intersection Headwaters Academy Traffic Impact Study Bozeman, Montana Abelin Traffic Services 10 November, 2019 of 11th Avenue may fall to LOS D during the PM school release period by 2034. However, this issue will be significantly influenced by the student enrollment growth at Bozeman High School. It is likely that the new Gallatin High School on Oak Street will limit growth at Bozeman High School over the next 10-20 years and may reduce the need to make intersection improvements in this area. If MSN-3 from the 2017 Bozeman Transportation Master Plan (construct North 11th Avenue from the intersection with Durston Road to the intersection with Oak Street) is implemented in the next 20 years, the traffic volumes on 11th Avenue could increase to the point where a traffic signal becomes warranted at Durston Road. Since this road expansion is not currently on the City of Bozeman Capital Improvements Program it is not known when it may be constructed. The need for a traffic signal at this location should be evaluated only when and if this project is completed in the future. I. IMPACT SUMMARY & RECOMMENDATIONS As proposed, the new Headwaters Academy will not create any roadway capacity problems in this area. No roadway improvements are recommended with the project. It is recommended that the sidewalk along Durston Road adjacent to the frontage of the property be widened to 5-6 feet to improve pedestrian mobility and that the planned parking area be modified to increase the throat distance from Durston Road. If the school plans to coordinate student activities with Bozeman High School, it would be desirable to install an actuated rapid flashing beacon at the existing crosswalk at 11th Avenue. APPENDIX A Traffic Data File Name : Not Named 1 Site Code : 00000000 Start Date : 11/6/2019 Page No : 1 Groups Printed- Class 1 - New Group 11th Ave Southbound Durston Westbound 11th Ave Northbound Durston Eastbound Start Time Right Thru Left Peds App. Total Right Thru Left Peds App. Total Right Thru Left Peds App. Total Right Thru Left Peds App. Total Int. Total07:30 AM 0 0 0 0 0 0 47 25 0 72 11 0 7 1 19 58 91 0 2 151 242 07:45 AM 0 0 0 0 0 0 52 25 0 77 17 0 12 2 31 61 88 0 1 150 258 Total 0 0 0 0 0 0 99 50 0 149 28 0 19 3 50 119 179 0 3 301 500 08:00 AM 0 0 0 0 0 0 47 19 0 66 17 0 24 0 41 54 90 0 0 144 251 08:15 AM 0 0 0 0 0 0 13 5 0 18 4 0 8 0 12 11 46 0 0 57 87 *** BREAK *** Total 0 0 0 0 0 0 60 24 0 84 21 0 32 0 53 65 136 0 0 201 338 *** BREAK *** 02:45 PM 0 0 0 0 0 0 53 4 0 57 19 0 34 0 53 19 81 0 0 100 210 Total 0 0 0 0 0 0 53 4 0 57 19 0 34 0 53 19 81 0 0 100 210 03:00 PM 0 0 0 0 0 0 57 5 2 64 18 0 30 1 49 23 50 0 0 73 186 03:15 PM 0 0 0 0 0 0 69 14 0 83 11 0 22 2 35 27 53 0 0 80 198 03:30 PM 0 0 0 0 0 0 77 11 0 88 24 0 39 3 66 46 79 0 1 126 280 *** BREAK *** Total 0 0 0 0 0 0 203 30 2 235 53 0 91 6 150 96 182 0 1 279 664 Grand Total 0 0 0 0 0 0 415 108 2 525 121 0 176 9 306 299 578 0 4 881 1712 Apprch %0 0 0 0 0 79 20.6 0.4 39.5 0 57.5 2.9 33.9 65.6 0 0.5 Total %0 0 0 0 0 0 24.2 6.3 0.1 30.7 7.1 0 10.3 0.5 17.9 17.5 33.8 0 0.2 51.5 Class 1 0 0 0 0 0 0 402 97 2 501 121 0 174 9 304 284 575 0 4 863 1668 % Class 1 0 0 0 0 0 0 96.9 89.8 100 95.4 100 0 98.9 100 99.3 95 99.5 0 100 98 97.4 New Group % New Group 0 0 0 0 0 0 3.1 10.2 0 4.6 0 0 1.1 0 0.7 5 0.5 0 0 2 2.6 Abelin Traffic Services 130 S. Howie Street Helena, MT 59601 File Name : 15thDurstonTMC Site Code : 00000000 Start Date : 11/6/2019 Page No : 1 Groups Printed- Class 1 - Class 2 15th Southbound Durston Westbound 15th Northbound Durston Eastbound Start Time Right Thru Left Peds App. Total Right Thru Left Peds App. Total Right Thru Left Peds App. Total Right Thru Left Peds App. Total Int. Total07:30 AM 15 17 3 1 36 23 96 7 0 126 7 26 19 0 52 1 27 8 0 36 250 07:45 AM 12 33 11 2 58 33 116 10 3 162 8 39 18 1 66 4 38 12 0 54 340 Total 27 50 14 3 94 56 212 17 3 288 15 65 37 1 118 5 65 20 0 90 590 08:00 AM 26 35 15 0 76 51 102 22 1 176 5 49 18 0 72 8 52 17 0 77 401 08:15 AM 22 21 13 0 56 43 89 10 0 142 9 30 13 0 52 7 37 15 0 59 309 *** BREAK *** Total 48 56 28 0 132 94 191 32 1 318 14 79 31 0 124 15 89 32 0 136 710 *** BREAK *** 02:45 PM 24 31 11 0 66 7 46 5 1 59 3 16 9 4 32 11 57 10 0 78 235 Total 24 31 11 0 66 7 46 5 1 59 3 16 9 4 32 11 57 10 0 78 235 03:00 PM 14 40 8 1 63 10 39 6 1 56 8 40 20 1 69 21 59 13 0 93 281 03:15 PM 20 11 13 3 47 21 70 7 0 98 8 29 10 0 47 17 75 19 0 111 303 03:30 PM 51 78 46 3 178 21 72 12 4 109 8 34 11 1 54 18 94 10 1 123 464 *** BREAK *** Total 85 129 67 7 288 52 181 25 5 263 24 103 41 2 170 56 228 42 1 327 1048 Grand Total 184 266 120 10 580 209 630 79 10 928 56 263 118 7 444 87 439 104 1 631 2583 Apprch %31.7 45.9 20.7 1.7 22.5 67.9 8.5 1.1 12.6 59.2 26.6 1.6 13.8 69.6 16.5 0.2 Total %7.1 10.3 4.6 0.4 22.5 8.1 24.4 3.1 0.4 35.9 2.2 10.2 4.6 0.3 17.2 3.4 17 4 0 24.4 Class 1 182 266 119 10 577 209 602 78 10 899 56 260 116 7 439 85 423 103 1 612 2527 % Class 1 98.9 100 99.2 100 99.5 100 95.6 98.7 100 96.9 100 98.9 98.3 100 98.9 97.7 96.4 99 100 97 97.8 Class 2 2 0 1 0 3 0 28 1 0 29 0 3 2 0 5 2 16 1 0 19 56 % Class 2 1.1 0 0.8 0 0.5 0 4.4 1.3 0 3.1 0 1.1 1.7 0 1.1 2.3 3.6 1 0 3 2.2 Abelin Traffic Services 130 S. Howie Street Helena, MT 59601 APPENDIX B Traffic Model Headwaters Academy Seasonal Adjustment 1 Traffic Model Existing AM Peak Hour (Peak 15 Min x 4) 13.2 B 14.3 B 20 32 52 15.4 C 0 0 12.8 B 196 208 404 208 208 0 256 244 72 68 140 100 100 0 4 4 88 60 148 352 48 400 0 52 408 16 408 140 548 244 68 312 412 0 24 12 204 104 308 596 424 1020 8 20 988 612 1600 Headwaters Academy Traffic Model Existing PM Peak Hour (Peak 15 Min x 4) 15.3 B 13.0 B 32 72 104 19.7 C 0 0 13.4 B 136 376 512 308 308 0 340 324 44 40 84 44 44 0 4 4 48 184 232 316 156 472 0 12 404 20 288 312 600 184 96 280 404 0 12 16 84 204 288 500 604 1104 8 12 632 1188 1820 Headwaters Academy Traffic Model Site Generated Traffic AM Peak Hour IN 35 OUT 28 2 14 16 8 11 1 14 2 2 3 13 14 18 11 2 10 4 2 1 2 IN 35 OUT 28 Headwaters Academy Traffic Model Site Generated Traffic PM Peak Hour IN 15 OUT 17 1 9 7 5 7 1 6 1 1 2 8 6 8 7 1 4 2 1 1 1 IN 15 OUT 17 Headwaters Academy Background Growth Factor 1 Traffic Model Total Projected Traffic AM Peak Hour 13.8 B 17.0/13.5 C/B 20 34 54 15.7 C 14 16 13.2 B 196 216 412 219 219.2 1 256 258 74 70 144 103 102.8 13 4 4 88 60 148 366 48 414 18 52 419 18 418 140 558 244 72 315.5 412 2 25 12 204 106 310 610 442 1052 8 20 1000 625 1625 ##### ##### Headwaters Academy Traffic Model Total Projected Traffic PM Peak Hour 15.5 B 14.4/13.9 B/B 32 73 105 20.2 C 9 7 13.6 B 136 381 517 315 315 1 340 330 45 41 86 46 46 8 4 4 48 184 232 322 156 478 8 12 411 21 292 312 604 184 98 282 404 1 13 16 84 205 289 506 614 1120 8 12 637 1196 1833 ##### ##### Headwaters Academy Background Growth Factor 1.15 Traffic Model Total Projected Traffic AM Peak Hour Future 2034 20.4 C 20.1/14.8 C/B 23 38 18.6 C 14 16 14.4 B 225 247 250 1 294 295 85 80 118 13 5 5 101 69 419 55 18 60 481 20 479 161 281 82 474 2 29 14 235 122 9 23 Headwaters Academy Traffic Model Total Projected Traffic PM Peak Hour Future 2034 21.6 C 16.1/15.4 C/C 37 84 29.0 D 9 7 15.1 C 156 437 361 1 391 379 52 47 52 8 5 5 55 212 369 179 8 14 471 24 335 359 212 112 465 1 15 18 97 236 9 14 APPENDIX C LOS Calculations HCS7 Signalized Intersection Results Summary General Information Intersection Information Agency ATS Duration, h 0.25 Analyst RLA Analysis Date Nov 14, 2019 Area Type Other Jurisdiction City of Bozeman Time Period AM Peak Existing PHF 1.00 Urban Street Durston Road Analysis Year 2019 Analysis Period 1> 7:00 Intersection 15th Avenue File Name 15thAM.xus Project Description Headwaters Academy Demand Information EB WB NB SB Approach Movement L T R L T R L T R L T R Demand ( v ), veh/h 88 408 204 68 208 32 60 140 104 72 196 20 Signal Information Green Yellow Red 3.4 0.6 17.9 11.7 0.0 0.0 3.0 0.0 3.0 3.0 0.0 0.0 0.0 0.0 1.0 1.0 0.0 0.0 Cycle, s 44.7 Reference Phase 2 Offset, s 0 Reference Point End Uncoordinated Yes Simult. Gap E/W On Force Mode Fixed Simult. Gap N/S On Timer Results EBL EBT WBL WBT NBL NBT SBL SBT Assigned Phase 5 2 1 6 8 4 Case Number 1.1 4.0 1.1 4.0 6.0 6.0 Phase Duration, s 7.0 22.5 6.4 21.9 15.7 15.7 Change Period, ( Y+R c ), s 3.0 4.0 3.0 4.0 4.0 4.0 Max Allow Headway ( MAH ), s 3.2 3.2 3.2 3.2 3.3 3.3 Queue Clearance Time ( g s ), s 3.3 17.2 3.0 6.3 8.8 10.4 Green Extension Time ( g e ), s 0.0 1.3 0.0 0.0 0.6 1.3 Phase Call Probability 0.67 1.00 0.57 1.00 1.00 1.00 Max Out Probability 1.00 0.01 1.00 1.00 0.64 0.00 Movement Group Results EB WB NB SB Approach Movement L T R L T R L T R L T R Assigned Movement 5 2 12 1 6 16 3 8 18 7 4 14 Adjusted Flow Rate ( v ), veh/h 88 612 68 240 60 244 72 216 Adjusted Saturation Flow Rate ( s ), veh/h/ln 1688 1672 1688 1730 1165 1646 1136 1743 Queue Service Time ( g s ), s 1.3 15.2 1.0 4.3 2.0 5.7 2.6 4.7 Cycle Queue Clearance Time ( g c ), s 1.3 15.2 1.0 4.3 6.8 5.7 8.4 4.7 Green Ratio ( g/C )0.49 0.41 0.48 0.40 0.26 0.26 0.26 0.26 Capacity ( c ), veh/h 661 691 316 693 345 434 314 460 Volume-to-Capacity Ratio ( X )0.133 0.885 0.215 0.346 0.174 0.562 0.230 0.470 Back of Queue ( Q ), ft/ln ( 50 th percentile)8.2 117.6 6.7 32.9 12.4 47.2 15.7 40.1 Back of Queue ( Q ), veh/ln ( 50 th percentile)0.3 4.6 0.3 1.3 0.5 1.9 0.6 1.6 Queue Storage Ratio ( RQ ) ( 50 th percentile)0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Uniform Delay ( d 1 ), s/veh 6.4 12.1 9.7 9.3 16.7 14.2 17.9 13.8 Incremental Delay ( d 2 ), s/veh 0.0 2.0 0.1 0.1 0.1 0.5 0.1 0.3 Initial Queue Delay ( d 3 ), s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Control Delay ( d ), s/veh 6.4 14.1 9.8 9.4 16.8 14.8 18.0 14.1 Level of Service (LOS)A B A A B B B B Approach Delay, s/veh / LOS 13.2 B 9.5 A 15.2 B 15.1 B Intersection Delay, s/veh / LOS 13.2 B Multimodal Results EB WB NB SB Pedestrian LOS Score / LOS 1.88 B 1.88 B 1.90 B 1.90 B Bicycle LOS Score / LOS 1.64 B 1.00 A 0.99 A 0.96 A Copyright © 2019 University of Florida, All Rights Reserved. HCS™ Streets Version 7.8 Generated: 11/15/2019 8:47:58 AM HCS7 Signalized Intersection Results Summary General Information Intersection Information Agency ATS Duration, h 0.25 Analyst RLA Analysis Date Nov 14, 2019 Area Type Other Jurisdiction City of Bozeman Time Period PM Peak Existing PHF 1.00 Urban Street Durston Road Analysis Year 2019 Analysis Period 1> 7:00 Intersection 15th Avenue File Name 15thPM.xus Project Description Headwaters Academy Demand Information EB WB NB SB Approach Movement L T R L T R L T R L T R Demand ( v ), veh/h 48 288 84 40 376 72 194 312 204 44 136 32 Signal Information Green Yellow Red 2.8 0.4 17.3 21.6 0.0 0.0 3.0 0.0 3.0 3.0 0.0 0.0 0.0 0.0 1.0 1.0 0.0 0.0 Cycle, s 53.0 Reference Phase 2 Offset, s 0 Reference Point End Uncoordinated Yes Simult. Gap E/W On Force Mode Fixed Simult. Gap N/S On Timer Results EBL EBT WBL WBT NBL NBT SBL SBT Assigned Phase 5 2 1 6 8 4 Case Number 1.1 4.0 1.1 4.0 6.0 6.0 Phase Duration, s 6.2 21.6 5.8 21.3 25.6 25.6 Change Period, ( Y+R c ), s 3.0 4.0 3.0 4.0 4.0 4.0 Max Allow Headway ( MAH ), s 3.2 3.2 3.2 3.2 3.3 3.3 Queue Clearance Time ( g s ), s 3.0 12.1 2.8 14.9 16.6 18.7 Green Extension Time ( g e ), s 0.0 1.7 0.1 1.7 2.0 2.2 Phase Call Probability 0.52 1.00 0.45 1.00 1.00 1.00 Max Out Probability 1.00 0.00 0.00 0.00 0.03 0.00 Movement Group Results EB WB NB SB Approach Movement L T R L T R L T R L T R Assigned Movement 5 2 12 1 6 16 3 8 18 7 4 14 Adjusted Flow Rate ( v ), veh/h 48 372 40 448 194 516 44 168 Adjusted Saturation Flow Rate ( s ), veh/h/ln 1688 1703 1688 1722 1217 1654 885 1713 Queue Service Time ( g s ), s 1.0 10.1 0.8 12.9 6.5 14.6 2.4 3.5 Cycle Queue Clearance Time ( g c ), s 1.0 10.1 0.8 12.9 8.7 14.6 16.7 3.5 Green Ratio ( g/C )0.40 0.33 0.39 0.33 0.41 0.41 0.41 0.41 Capacity ( c ), veh/h 320 572 343 566 580 675 261 699 Volume-to-Capacity Ratio ( X )0.150 0.650 0.116 0.791 0.334 0.764 0.168 0.240 Back of Queue ( Q ), ft/ln ( 50 th percentile)8.1 88.5 6.8 115.7 39.7 122.6 12 29 Back of Queue ( Q ), veh/ln ( 50 th percentile)0.3 3.5 0.3 4.6 1.6 4.8 0.5 1.1 Queue Storage Ratio ( RQ ) ( 50 th percentile)0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Uniform Delay ( d 1 ), s/veh 12.1 15.4 11.9 16.6 12.9 13.9 20.9 10.6 Incremental Delay ( d 2 ), s/veh 0.1 0.5 0.1 1.0 0.1 1.4 0.1 0.1 Initial Queue Delay ( d 3 ), s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Control Delay ( d ), s/veh 12.2 15.8 11.9 17.5 13.1 15.3 21.0 10.6 Level of Service (LOS)B B B B B B C B Approach Delay, s/veh / LOS 15.4 B 17.1 B 14.7 B 12.8 B Intersection Delay, s/veh / LOS 15.3 B Multimodal Results EB WB NB SB Pedestrian LOS Score / LOS 1.90 B 1.90 B 1.89 B 1.89 B Bicycle LOS Score / LOS 1.18 A 1.29 A 1.66 B 0.84 A Copyright © 2019 University of Florida, All Rights Reserved. HCS™ Streets Version 7.8 Generated: 11/15/2019 8:51:15 AM HCS7 Two-Way Stop-Control Report General Information Site Information Analyst RLA Intersection Durston & 11th Agency/Co.ATS Jurisdiction City of Bozeman Date Performed 11/14/2019 East/West Street Durston Road Analysis Year 2019 North/South Street 11th Avenue Time Analyzed Existing AM Peak Hour Peak Hour Factor 1.00 Intersection Orientation East-West Analysis Time Period (hrs)0.25 Project Description Headwaters Academy Lanes Major Street: East-West Vehicle Volumes and Adjustments Approach Eastbound Westbound Northbound Southbound Movement U L T R U L T R U L T R U L T R Priority 1U 1 2 3 4U 4 5 6 7 8 9 10 11 12 Number of Lanes 0 0 1 0 0 1 1 0 1 0 1 0 0 0 Configuration TR L T L R Volume (veh/h)352 244 100 208 48 68 Percent Heavy Vehicles (%)3 3 3 Proportion Time Blocked Percent Grade (%)0 Right Turn Channelized No Median Type | Storage Undivided Critical and Follow-up Headways Base Critical Headway (sec)4.1 7.1 6.2 Critical Headway (sec)4.13 6.43 6.23 Base Follow-Up Headway (sec)2.2 3.5 3.3 Follow-Up Headway (sec)2.23 3.53 3.33 Delay, Queue Length, and Level of Service Flow Rate, v (veh/h)100 48 68 Capacity, c (veh/h)976 283 588 v/c Ratio 0.10 0.17 0.12 95% Queue Length, Q₉₅ (veh)0.3 0.6 0.4 Control Delay (s/veh)9.1 20.3 11.9 Level of Service (LOS)A C B Approach Delay (s/veh)3.0 15.4 Approach LOS C Copyright © 2019 University of Florida. All Rights Reserved. HCS™TWSC Version 7.8 Generated: 11/15/2019 8:47:04 AM11thAM.xtw HCS7 Two-Way Stop-Control Report General Information Site Information Analyst RLA Intersection Durston & 11th Agency/Co.ATS Jurisdiction City of Bozeman Date Performed 11/14/2019 East/West Street Durston Road Analysis Year 2019 North/South Street 11th Avenue Time Analyzed Existing PM Peak Hour Peak Hour Factor 1.00 Intersection Orientation East-West Analysis Time Period (hrs)0.25 Project Description Headwaters Academy Lanes Major Street: East-West Vehicle Volumes and Adjustments Approach Eastbound Westbound Northbound Southbound Movement U L T R U L T R U L T R U L T R Priority 1U 1 2 3 4U 4 5 6 7 8 9 10 11 12 Number of Lanes 0 0 1 0 0 1 1 0 1 0 1 0 0 0 Configuration TR L T L R Volume (veh/h)316 184 44 308 156 96 Percent Heavy Vehicles (%)3 3 3 Proportion Time Blocked Percent Grade (%)0 Right Turn Channelized No Median Type | Storage Undivided Critical and Follow-up Headways Base Critical Headway (sec)4.1 7.1 6.2 Critical Headway (sec)4.13 6.43 6.23 Base Follow-Up Headway (sec)2.2 3.5 3.3 Follow-Up Headway (sec)2.23 3.53 3.33 Delay, Queue Length, and Level of Service Flow Rate, v (veh/h)44 156 96 Capacity, c (veh/h)1059 336 641 v/c Ratio 0.04 0.46 0.15 95% Queue Length, Q₉₅ (veh)0.1 2.4 0.5 Control Delay (s/veh)8.5 24.6 11.6 Level of Service (LOS)A C B Approach Delay (s/veh)1.1 19.7 Approach LOS C Copyright © 2019 University of Florida. All Rights Reserved. HCS™TWSC Version 7.8 Generated: 11/15/2019 8:47:31 AM11thPM.xtw HCS7 Two-Way Stop-Control Report General Information Site Information Analyst RLA Intersection Durston & 10th Agency/Co.ATS Jurisdiction City of Bozeman Date Performed 11/14/2019 East/West Street Durston Road Analysis Year 2019 North/South Street 10th Avenue Time Analyzed Existing AM Peak Hour Peak Hour Factor 1.00 Intersection Orientation East-West Analysis Time Period (hrs)0.25 Project Description Headwaters Academy Lanes Major Street: East-West Vehicle Volumes and Adjustments Approach Eastbound Westbound Northbound Southbound Movement U L T R U L T R U L T R U L T R Priority 1U 1 2 3 4U 4 5 6 7 8 9 10 11 12 Number of Lanes 0 0 1 0 0 1 1 0 0 1 0 0 0 0 Configuration TR L T LR Volume (veh/h)412 8 4 256 52 20 Percent Heavy Vehicles (%)3 3 3 Proportion Time Blocked Percent Grade (%)0 Right Turn Channelized Median Type | Storage Undivided Critical and Follow-up Headways Base Critical Headway (sec)4.1 7.1 6.2 Critical Headway (sec)4.13 6.43 6.23 Base Follow-Up Headway (sec)2.2 3.5 3.3 Follow-Up Headway (sec)2.23 3.53 3.33 Delay, Queue Length, and Level of Service Flow Rate, v (veh/h)4 72 Capacity, c (veh/h)1134 458 v/c Ratio 0.00 0.16 95% Queue Length, Q₉₅ (veh)0.0 0.6 Control Delay (s/veh)8.2 14.3 Level of Service (LOS)A B Approach Delay (s/veh)0.1 14.3 Approach LOS B Copyright © 2019 University of Florida. All Rights Reserved. HCS™TWSC Version 7.8 Generated: 11/15/2019 8:46:14 AM10thAM.xtw HCS7 Two-Way Stop-Control Report General Information Site Information Analyst RLA Intersection Durston & 10th Agency/Co.ATS Jurisdiction City of Bozeman Date Performed 11/14/2019 East/West Street Durston Road Analysis Year 2019 North/South Street 10th Avenue Time Analyzed Existing PM Peak Hour Peak Hour Factor 1.00 Intersection Orientation East-West Analysis Time Period (hrs)0.25 Project Description Headwaters Academy Lanes Major Street: East-West Vehicle Volumes and Adjustments Approach Eastbound Westbound Northbound Southbound Movement U L T R U L T R U L T R U L T R Priority 1U 1 2 3 4U 4 5 6 7 8 9 10 11 12 Number of Lanes 0 0 1 0 0 1 1 0 0 1 0 0 0 0 Configuration TR L T LR Volume (veh/h)404 8 4 340 12 12 Percent Heavy Vehicles (%)3 3 3 Proportion Time Blocked Percent Grade (%)0 Right Turn Channelized Median Type | Storage Undivided Critical and Follow-up Headways Base Critical Headway (sec)4.1 7.1 6.2 Critical Headway (sec)4.13 6.43 6.23 Base Follow-Up Headway (sec)2.2 3.5 3.3 Follow-Up Headway (sec)2.23 3.53 3.33 Delay, Queue Length, and Level of Service Flow Rate, v (veh/h)4 24 Capacity, c (veh/h)1142 472 v/c Ratio 0.00 0.05 95% Queue Length, Q₉₅ (veh)0.0 0.2 Control Delay (s/veh)8.2 13.0 Level of Service (LOS)A B Approach Delay (s/veh)0.1 13.0 Approach LOS B Copyright © 2019 University of Florida. All Rights Reserved. HCS™TWSC Version 7.8 Generated: 11/15/2019 8:46:40 AM10thPM.xtw HCS7 Two-Way Stop-Control Report General Information Site Information Analyst RLA Intersection Durston & 9th Agency/Co.ATS Jurisdiction City of Bozeman Date Performed 11/14/2019 East/West Street Durston Road Analysis Year 2019 North/South Street 9th Avenue Time Analyzed Existing AM Peak Hour Peak Hour Factor 1.00 Intersection Orientation East-West Analysis Time Period (hrs)0.25 Project Description Headwaters Academy Lanes Major Street: East-West Vehicle Volumes and Adjustments Approach Eastbound Westbound Northbound Southbound Movement U L T R U L T R U L T R U L T R Priority 1U 1 2 3 4U 4 5 6 7 8 9 10 11 12 Number of Lanes 0 0 1 0 0 1 1 0 0 1 0 0 0 0 Configuration TR L T LR Volume (veh/h)408 24 4 244 16 12 Percent Heavy Vehicles (%)3 3 3 Proportion Time Blocked Percent Grade (%)0 Right Turn Channelized Median Type | Storage Undivided Critical and Follow-up Headways Base Critical Headway (sec)4.1 7.1 6.2 Critical Headway (sec)4.13 6.43 6.23 Base Follow-Up Headway (sec)2.2 3.5 3.3 Follow-Up Headway (sec)2.23 3.53 3.33 Delay, Queue Length, and Level of Service Flow Rate, v (veh/h)4 28 Capacity, c (veh/h)1122 489 v/c Ratio 0.00 0.06 95% Queue Length, Q₉₅ (veh)0.0 0.2 Control Delay (s/veh)8.2 12.8 Level of Service (LOS)A B Approach Delay (s/veh)0.1 12.8 Approach LOS B Copyright © 2019 University of Florida. All Rights Reserved. HCS™TWSC Version 7.8 Generated: 11/15/2019 8:45:10 AM9thAM.xtw HCS7 Two-Way Stop-Control Report General Information Site Information Analyst RLA Intersection Durston & 9th Agency/Co.ATS Jurisdiction City of Bozeman Date Performed 11/14/2019 East/West Street Durston Road Analysis Year 2019 North/South Street 9th Avenue Time Analyzed Existing PM Peak Hour Peak Hour Factor 1.00 Intersection Orientation East-West Analysis Time Period (hrs)0.25 Project Description Headwaters Academy Lanes Major Street: East-West Vehicle Volumes and Adjustments Approach Eastbound Westbound Northbound Southbound Movement U L T R U L T R U L T R U L T R Priority 1U 1 2 3 4U 4 5 6 7 8 9 10 11 12 Number of Lanes 0 0 1 0 0 1 1 0 0 1 0 0 0 0 Configuration TR L T LR Volume (veh/h)404 12 4 324 20 16 Percent Heavy Vehicles (%)3 3 3 Proportion Time Blocked Percent Grade (%)0 Right Turn Channelized Median Type | Storage Undivided Critical and Follow-up Headways Base Critical Headway (sec)4.1 7.1 6.2 Critical Headway (sec)4.13 6.43 6.23 Base Follow-Up Headway (sec)2.2 3.5 3.3 Follow-Up Headway (sec)2.23 3.53 3.33 Delay, Queue Length, and Level of Service Flow Rate, v (veh/h)4 36 Capacity, c (veh/h)1138 464 v/c Ratio 0.00 0.08 95% Queue Length, Q₉₅ (veh)0.0 0.3 Control Delay (s/veh)8.2 13.4 Level of Service (LOS)A B Approach Delay (s/veh)0.1 13.4 Approach LOS B Copyright © 2019 University of Florida. All Rights Reserved. HCS™TWSC Version 7.8 Generated: 11/15/2019 8:45:42 AM9thPM.xtw HCS7 Signalized Intersection Results Summary General Information Intersection Information Agency ATS Duration, h 0.25 Analyst RLA Analysis Date Nov 14, 2019 Area Type Other Jurisdiction City of Bozeman Time Period AM Peak Projected PHF 1.00 Urban Street Durston Road Analysis Year 2020 Analysis Period 1> 7:00 Intersection 15th Avenue File Name 15thAMwith.xus Project Description Headwaters Academy Demand Information EB WB NB SB Approach Movement L T R L T R L T R L T R Demand ( v ), veh/h 88 418 204 70 216 34 60 140 106 74 196 20 Signal Information Green Yellow Red 3.5 0.5 18.6 12.1 0.0 0.0 3.0 0.0 3.0 3.0 0.0 0.0 0.0 0.0 1.0 1.0 0.0 0.0 Cycle, s 45.8 Reference Phase 2 Offset, s 0 Reference Point End Uncoordinated Yes Simult. Gap E/W On Force Mode Fixed Simult. Gap N/S On Timer Results EBL EBT WBL WBT NBL NBT SBL SBT Assigned Phase 5 2 1 6 8 4 Case Number 1.1 4.0 1.1 4.0 6.0 6.0 Phase Duration, s 7.1 23.2 6.5 22.6 16.1 16.1 Change Period, ( Y+R c ), s 3.0 4.0 3.0 4.0 4.0 4.0 Max Allow Headway ( MAH ), s 3.2 3.2 3.2 3.2 3.3 3.3 Queue Clearance Time ( g s ), s 3.3 17.8 3.0 6.6 8.9 10.8 Green Extension Time ( g e ), s 0.0 1.3 0.0 0.0 0.6 1.3 Phase Call Probability 0.67 1.00 0.59 1.00 1.00 1.00 Max Out Probability 1.00 0.02 1.00 1.00 0.69 0.00 Movement Group Results EB WB NB SB Approach Movement L T R L T R L T R L T R Assigned Movement 5 2 12 1 6 16 3 8 18 7 4 14 Adjusted Flow Rate ( v ), veh/h 88 622 70 250 60 246 74 216 Adjusted Saturation Flow Rate ( s ), veh/h/ln 1688 1673 1688 1730 1165 1644 1134 1743 Queue Service Time ( g s ), s 1.3 15.8 1.0 4.6 2.1 5.9 2.8 4.8 Cycle Queue Clearance Time ( g c ), s 1.3 15.8 1.0 4.6 6.9 5.9 8.8 4.8 Green Ratio ( g/C )0.50 0.42 0.48 0.41 0.26 0.26 0.26 0.26 Capacity ( c ), veh/h 654 699 312 703 343 436 310 462 Volume-to-Capacity Ratio ( X )0.135 0.890 0.224 0.355 0.175 0.564 0.239 0.467 Back of Queue ( Q ), ft/ln ( 50 th percentile)8.4 128.3 7.1 35.3 12.8 49.9 16.7 41.6 Back of Queue ( Q ), veh/ln ( 50 th percentile)0.3 5.1 0.3 1.4 0.5 2.0 0.7 1.6 Queue Storage Ratio ( RQ ) ( 50 th percentile)0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Uniform Delay ( d 1 ), s/veh 6.4 12.4 9.9 9.4 17.1 14.6 18.4 14.1 Incremental Delay ( d 2 ), s/veh 0.0 2.8 0.1 0.1 0.1 0.7 0.1 0.3 Initial Queue Delay ( d 3 ), s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Control Delay ( d ), s/veh 6.5 15.2 10.1 9.6 17.2 15.3 18.5 14.4 Level of Service (LOS)A B B A B B B B Approach Delay, s/veh / LOS 14.1 B 9.7 A 15.7 B 15.5 B Intersection Delay, s/veh / LOS 13.8 B Multimodal Results EB WB NB SB Pedestrian LOS Score / LOS 1.88 B 1.88 B 1.90 B 1.90 B Bicycle LOS Score / LOS 1.66 B 1.02 A 0.99 A 0.97 A Copyright © 2019 University of Florida, All Rights Reserved. HCS™ Streets Version 7.8 Generated: 11/15/2019 8:52:06 AM HCS7 Signalized Intersection Results Summary General Information Intersection Information Agency ATS Duration, h 0.25 Analyst RLA Analysis Date Nov 14, 2019 Area Type Other Jurisdiction City of Bozeman Time Period PM Peak Projected PHF 1.00 Urban Street Durston Road Analysis Year 2020 Analysis Period 1> 7:00 Intersection 15th Avenue File Name 15thPMwith.xus Project Description Headwaters Academy Demand Information EB WB NB SB Approach Movement L T R L T R L T R L T R Demand ( v ), veh/h 48 292 84 41 381 73 194 312 205 45 136 32 Signal Information Green Yellow Red 2.9 0.3 17.7 22.0 0.0 0.0 3.0 0.0 3.0 3.0 0.0 0.0 0.0 0.0 1.0 1.0 0.0 0.0 Cycle, s 53.9 Reference Phase 2 Offset, s 0 Reference Point End Uncoordinated Yes Simult. Gap E/W On Force Mode Fixed Simult. Gap N/S On Timer Results EBL EBT WBL WBT NBL NBT SBL SBT Assigned Phase 5 2 1 6 8 4 Case Number 1.1 4.0 1.1 4.0 6.0 6.0 Phase Duration, s 6.2 22.0 5.9 21.7 26.0 26.0 Change Period, ( Y+R c ), s 3.0 4.0 3.0 4.0 4.0 4.0 Max Allow Headway ( MAH ), s 3.2 3.2 3.2 3.2 3.3 3.3 Queue Clearance Time ( g s ), s 3.0 12.4 2.8 15.3 16.9 19.1 Green Extension Time ( g e ), s 0.0 1.7 0.1 1.7 2.0 2.2 Phase Call Probability 0.52 1.00 0.47 1.00 1.00 1.00 Max Out Probability 1.00 0.00 0.00 0.00 0.03 0.00 Movement Group Results EB WB NB SB Approach Movement L T R L T R L T R L T R Assigned Movement 5 2 12 1 6 16 3 8 18 7 4 14 Adjusted Flow Rate ( v ), veh/h 48 376 41 454 194 517 45 168 Adjusted Saturation Flow Rate ( s ), veh/h/ln 1688 1703 1688 1722 1217 1654 884 1713 Queue Service Time ( g s ), s 1.0 10.4 0.8 13.3 6.6 14.9 2.5 3.6 Cycle Queue Clearance Time ( g c ), s 1.0 10.4 0.8 13.3 8.8 14.9 17.1 3.6 Green Ratio ( g/C )0.40 0.33 0.39 0.33 0.41 0.41 0.41 0.41 Capacity ( c ), veh/h 316 576 342 571 579 676 259 701 Volume-to-Capacity Ratio ( X )0.152 0.653 0.120 0.795 0.335 0.764 0.173 0.240 Back of Queue ( Q ), ft/ln ( 50 th percentile)8.2 91.3 7.1 119.9 40.5 126.2 12.5 29.7 Back of Queue ( Q ), veh/ln ( 50 th percentile)0.3 3.6 0.3 4.7 1.6 5.0 0.5 1.2 Queue Storage Ratio ( RQ ) ( 50 th percentile)0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Uniform Delay ( d 1 ), s/veh 12.2 15.6 12.0 16.8 13.1 14.1 21.3 10.7 Incremental Delay ( d 2 ), s/veh 0.1 0.5 0.1 1.0 0.1 1.6 0.1 0.1 Initial Queue Delay ( d 3 ), s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Control Delay ( d ), s/veh 12.3 16.0 12.1 17.8 13.2 15.7 21.4 10.8 Level of Service (LOS)B B B B B B C B Approach Delay, s/veh / LOS 15.6 B 17.3 B 15.0 B 13.0 B Intersection Delay, s/veh / LOS 15.5 B Multimodal Results EB WB NB SB Pedestrian LOS Score / LOS 1.90 B 1.90 B 1.89 B 1.89 B Bicycle LOS Score / LOS 1.19 A 1.30 A 1.66 B 0.84 A Copyright © 2019 University of Florida, All Rights Reserved. HCS™ Streets Version 7.8 Generated: 11/15/2019 8:52:46 AM HCS7 Two-Way Stop-Control Report General Information Site Information Analyst RLA Intersection Durston & 11th Agency/Co.ATS Jurisdiction City of Bozeman Date Performed 11/14/2019 East/West Street Durston Road Analysis Year 2020 North/South Street 11th Avenue Time Analyzed Projected AM Peak Hour Peak Hour Factor 1.00 Intersection Orientation East-West Analysis Time Period (hrs)0.25 Project Description Headwaters Academy Lanes Major Street: East-West Vehicle Volumes and Adjustments Approach Eastbound Westbound Northbound Southbound Movement U L T R U L T R U L T R U L T R Priority 1U 1 2 3 4U 4 5 6 7 8 9 10 11 12 Number of Lanes 0 0 1 0 0 1 1 0 1 0 1 0 0 0 Configuration TR L T L R Volume (veh/h)366 244 103 219 48 72 Percent Heavy Vehicles (%)3 3 3 Proportion Time Blocked Percent Grade (%)0 Right Turn Channelized No Median Type | Storage Undivided Critical and Follow-up Headways Base Critical Headway (sec)4.1 7.1 6.2 Critical Headway (sec)4.13 6.43 6.23 Base Follow-Up Headway (sec)2.2 3.5 3.3 Follow-Up Headway (sec)2.23 3.53 3.33 Delay, Queue Length, and Level of Service Flow Rate, v (veh/h)103 48 72 Capacity, c (veh/h)964 270 578 v/c Ratio 0.11 0.18 0.12 95% Queue Length, Q₉₅ (veh)0.4 0.6 0.4 Control Delay (s/veh)9.2 21.2 12.1 Level of Service (LOS)A C B Approach Delay (s/veh)2.9 15.7 Approach LOS C Copyright © 2019 University of Florida. All Rights Reserved. HCS™TWSC Version 7.8 Generated: 11/15/2019 8:59:18 AM11thAMwith.xtw HCS7 Two-Way Stop-Control Report General Information Site Information Analyst RLA Intersection Durston & 11th Agency/Co.ATS Jurisdiction City of Bozeman Date Performed 11/14/2019 East/West Street Durston Road Analysis Year 2020 North/South Street 11th Avenue Time Analyzed Projected PM Peak Hour Peak Hour Factor 1.00 Intersection Orientation East-West Analysis Time Period (hrs)0.25 Project Description Headwaters Academy Lanes Major Street: East-West Vehicle Volumes and Adjustments Approach Eastbound Westbound Northbound Southbound Movement U L T R U L T R U L T R U L T R Priority 1U 1 2 3 4U 4 5 6 7 8 9 10 11 12 Number of Lanes 0 0 1 0 0 1 1 0 1 0 1 0 0 0 Configuration TR L T L R Volume (veh/h)322 184 46 315 156 98 Percent Heavy Vehicles (%)3 3 3 Proportion Time Blocked Percent Grade (%)0 Right Turn Channelized No Median Type | Storage Undivided Critical and Follow-up Headways Base Critical Headway (sec)4.1 7.1 6.2 Critical Headway (sec)4.13 6.43 6.23 Base Follow-Up Headway (sec)2.2 3.5 3.3 Follow-Up Headway (sec)2.23 3.53 3.33 Delay, Queue Length, and Level of Service Flow Rate, v (veh/h)46 156 98 Capacity, c (veh/h)1054 328 636 v/c Ratio 0.04 0.48 0.15 95% Queue Length, Q₉₅ (veh)0.1 2.4 0.5 Control Delay (s/veh)8.6 25.6 11.7 Level of Service (LOS)A D B Approach Delay (s/veh)1.1 20.2 Approach LOS C Copyright © 2019 University of Florida. All Rights Reserved. HCS™TWSC Version 7.8 Generated: 11/15/2019 9:03:30 AM11thPMwith.xtw HCS7 Two-Way Stop-Control Report General Information Site Information Analyst RLA Intersection Durston & 10th Agency/Co.ATS Jurisdiction City of Bozeman Date Performed 11/14/2019 East/West Street Durston Road Analysis Year 2020 North/South Street 10th Avenue Time Analyzed Projected AM Peak Hour Peak Hour Factor 1.00 Intersection Orientation East-West Analysis Time Period (hrs)0.25 Project Description Headwaters Academy Lanes Major Street: East-West Vehicle Volumes and Adjustments Approach Eastbound Westbound Northbound Southbound Movement U L T R U L T R U L T R U L T R Priority 1U 1 2 3 4U 4 5 6 7 8 9 10 11 12 Number of Lanes 0 1 1 0 0 1 1 0 0 1 0 0 1 0 Configuration L TR L TR LTR LTR Volume (veh/h)18 412 8 4 256 16 52 2 20 13 1 14 Percent Heavy Vehicles (%)3 3 3 3 3 3 3 3 Proportion Time Blocked Percent Grade (%)0 0 Right Turn Channelized Median Type | Storage Undivided Critical and Follow-up Headways Base Critical Headway (sec)4.1 4.1 7.1 6.5 6.2 7.1 6.5 6.2 Critical Headway (sec)4.13 4.13 7.13 6.53 6.23 7.13 6.53 6.23 Base Follow-Up Headway (sec)2.2 2.2 3.5 4.0 3.3 3.5 4.0 3.3 Follow-Up Headway (sec)2.23 2.23 3.53 4.03 3.33 3.53 4.03 3.33 Delay, Queue Length, and Level of Service Flow Rate, v (veh/h)18 4 74 28 Capacity, c (veh/h)1286 1134 375 452 v/c Ratio 0.01 0.00 0.20 0.06 95% Queue Length, Q₉₅ (veh)0.0 0.0 0.7 0.2 Control Delay (s/veh)7.8 8.2 17.0 13.5 Level of Service (LOS)A A C B Approach Delay (s/veh)0.3 0.1 17.0 13.5 Approach LOS C B Copyright © 2019 University of Florida. All Rights Reserved. HCS™TWSC Version 7.8 Generated: 11/15/2019 8:58:23 AM10thAMwith.xtw HCS7 Two-Way Stop-Control Report General Information Site Information Analyst RLA Intersection Durston & 10th Agency/Co.ATS Jurisdiction City of Bozeman Date Performed 11/14/2019 East/West Street Durston Road Analysis Year 2020 North/South Street 10th Avenue Time Analyzed Projected PM Peak Hour Peak Hour Factor 1.00 Intersection Orientation East-West Analysis Time Period (hrs)0.25 Project Description Headwaters Academy Lanes Major Street: East-West Vehicle Volumes and Adjustments Approach Eastbound Westbound Northbound Southbound Movement U L T R U L T R U L T R U L T R Priority 1U 1 2 3 4U 4 5 6 7 8 9 10 11 12 Number of Lanes 0 1 1 0 0 1 1 0 0 1 0 0 1 0 Configuration L TR L TR LTR LTR Volume (veh/h)8 404 8 4 340 7 12 1 12 8 1 9 Percent Heavy Vehicles (%)3 3 3 3 3 3 3 3 Proportion Time Blocked Percent Grade (%)0 0 Right Turn Channelized Median Type | Storage Undivided Critical and Follow-up Headways Base Critical Headway (sec)4.1 4.1 7.1 6.5 6.2 7.1 6.5 6.2 Critical Headway (sec)4.13 4.13 7.13 6.53 6.23 7.13 6.53 6.23 Base Follow-Up Headway (sec)2.2 2.2 3.5 4.0 3.3 3.5 4.0 3.3 Follow-Up Headway (sec)2.23 2.23 3.53 4.03 3.33 3.53 4.03 3.33 Delay, Queue Length, and Level of Service Flow Rate, v (veh/h)8 4 25 18 Capacity, c (veh/h)1206 1142 408 423 v/c Ratio 0.01 0.00 0.06 0.04 95% Queue Length, Q₉₅ (veh)0.0 0.0 0.2 0.1 Control Delay (s/veh)8.0 8.2 14.4 13.9 Level of Service (LOS)A A B B Approach Delay (s/veh)0.2 0.1 14.4 13.9 Approach LOS B B Copyright © 2019 University of Florida. All Rights Reserved. HCS™TWSC Version 7.8 Generated: 11/15/2019 8:58:47 AM10thPMwith.xtw HCS7 Two-Way Stop-Control Report General Information Site Information Analyst RLA Intersection Durston & 9th Agency/Co.ATS Jurisdiction City of Bozeman Date Performed 11/14/2019 East/West Street Durston Road Analysis Year 2020 North/South Street 9th Avenue Time Analyzed Projected AM Peak Hour Peak Hour Factor 1.00 Intersection Orientation East-West Analysis Time Period (hrs)0.25 Project Description Headwaters Academy Lanes Major Street: East-West Vehicle Volumes and Adjustments Approach Eastbound Westbound Northbound Southbound Movement U L T R U L T R U L T R U L T R Priority 1U 1 2 3 4U 4 5 6 7 8 9 10 11 12 Number of Lanes 0 0 1 0 0 1 1 0 0 1 0 0 0 0 Configuration TR L T LR Volume (veh/h)419 25 4 258 18 12 Percent Heavy Vehicles (%)3 3 3 Proportion Time Blocked Percent Grade (%)0 Right Turn Channelized Median Type | Storage Undivided Critical and Follow-up Headways Base Critical Headway (sec)4.1 7.1 6.2 Critical Headway (sec)4.13 6.43 6.23 Base Follow-Up Headway (sec)2.2 3.5 3.3 Follow-Up Headway (sec)2.23 3.53 3.33 Delay, Queue Length, and Level of Service Flow Rate, v (veh/h)4 30 Capacity, c (veh/h)1111 470 v/c Ratio 0.00 0.06 95% Queue Length, Q₉₅ (veh)0.0 0.2 Control Delay (s/veh)8.3 13.2 Level of Service (LOS)A B Approach Delay (s/veh)0.1 13.2 Approach LOS B Copyright © 2019 University of Florida. All Rights Reserved. HCS™TWSC Version 7.8 Generated: 11/15/2019 8:57:31 AM9thAMwith.xtw HCS7 Two-Way Stop-Control Report General Information Site Information Analyst RLA Intersection Durston & 9th Agency/Co.ATS Jurisdiction City of Bozeman Date Performed 11/14/2019 East/West Street Durston Road Analysis Year 2020 North/South Street 9th Avenue Time Analyzed Projected PM Peak Hour Peak Hour Factor 1.00 Intersection Orientation East-West Analysis Time Period (hrs)0.25 Project Description Headwaters Academy Lanes Major Street: East-West Vehicle Volumes and Adjustments Approach Eastbound Westbound Northbound Southbound Movement U L T R U L T R U L T R U L T R Priority 1U 1 2 3 4U 4 5 6 7 8 9 10 11 12 Number of Lanes 0 0 1 0 0 1 1 0 0 1 0 0 0 0 Configuration TR L T LR Volume (veh/h)411 13 4 330 21 16 Percent Heavy Vehicles (%)3 3 3 Proportion Time Blocked Percent Grade (%)0 Right Turn Channelized Median Type | Storage Undivided Critical and Follow-up Headways Base Critical Headway (sec)4.1 7.1 6.2 Critical Headway (sec)4.13 6.43 6.23 Base Follow-Up Headway (sec)2.2 3.5 3.3 Follow-Up Headway (sec)2.23 3.53 3.33 Delay, Queue Length, and Level of Service Flow Rate, v (veh/h)4 37 Capacity, c (veh/h)1130 454 v/c Ratio 0.00 0.08 95% Queue Length, Q₉₅ (veh)0.0 0.3 Control Delay (s/veh)8.2 13.6 Level of Service (LOS)A B Approach Delay (s/veh)0.1 13.6 Approach LOS B Copyright © 2019 University of Florida. All Rights Reserved. HCS™TWSC Version 7.8 Generated: 11/15/2019 8:57:56 AM9thPMwith.xtw