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PZ - Residential TIS - 20230627 TRAFFIC IMPACT STUDY FOR REVEILLE RIDGE SUBDIVISION MERIDIAN , ID DATE: June 27, 2023 LOCATION: Meridian, ID PREPARED FOR: Trilogy Development PREPARED BY: NV5 690 S. Industry Way, Suite 10 Meridian, ID 83642 NV5 nv5.com I EXECUTIVE SUMMARY A new 264-unit residential subdivision is proposed along S. Eagle Road in Meridian, ID. The primary access will be via the new Vantage Pointe Lane collector road on Eagle Road, between Columbia Road and Lake Hazel Road. There will also be an access point to the north on Lake Hazel Road via the new Discovery Park mid-mile collector road. The following study scenarios were included: • Existing(2023) with current roadway conditions • No-Build (2026) with expected roadway conditions • Build (2026) with expected and proposed roadway conditions The new development will produce 2,266 trips per day with 159 occurring between 7:00 and 8:00 am and 206 occurring between 4:30 and 5:30 pm. The traffic impact study was conducted in accordance with the scoping memorandum and the ACHD Policy Manual. The study network included six(6) intersections and three (3) road segments. Because of road closures in the area at the time of the study, no new traffic counts were collected. Instead, historical counts were used and grown to current levels. Traffic growth was estimated using COMPASS's model output and discussions with ACHD staff. A 10% background growth rate was used for all current volumes. The expected distribution of auto traffic is approximately 25%to the west, 45%to the north, 10%to the south, and 20%to the east. For the existing traffic conditions, one (1) intersections was found to have capacity deficiencies. • Lake Hazel Road at S. Eagle Road Lake Hazel Road is included in the COMPASS Transportation Improvement program to be improved to five lanes with curb, gutter, and a ten-foot multi-use path from Eagle Road to Cloverdale Road (RD209-18). The road is currently(as of this writing) under construction to west of the intersection to be a three-lane road with a TWTL. Since both of these projects are anticipated to be open before the site build-out date, they are included in the No-Build conditions. For the intersection,the all-way stop control will no longer be functional with the widening and with the additional traffic in the area. A traffic signal will work and will be warranted. A roundabout will work for some time but as traffic volumes increase, its efficiency will diminish. Recommendation(s): - Widen Lake Hazel Road west of S. Eagle Road to three lanes with a two-way,turn lane - Widen Lake Hazel Road east of S. Eagle Road to five lanes with a two-way, turn lane Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 ii Add two southbound left turn lanes on S. Eagle Road - Add a single northbound left turn lane on S. Eagle Road Add a traffic signal The recommendation is consistent with the ACHD work program For the no build traffic conditions, two (2) intersections wer found to have capacity deficiencies. • Lake Hazel Road at S. Eagle Road Same but worsening conditions as in the existing case. No additional improvements. • Lake Hazel Road at Discovery Park Collector Road As volume increases on Lake Hazel Road combined with new background development traffic, a westbound left turn lane on Lake Hazel Road will be needed. The turn lane will be built as a two- way, turn lane with the current(as of this writing) construction project. As such, no new improvements are needed. For the build traffic conditions, two () intersections were found to have capacity deficiencies. • Lake Hazel Road at S. Eagle Road Same but worsening conditions as in the existing case. No additional improvements. • Lake Hazel Road at Discovery Park Collector Road Same but worsening conditions as in the existing case. No additional improvements. The recommendations for mitigation to the impacts identified above are summarized in the table that follows. In general, the impacts from the site are manageable by the roadway network. Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 III Intersection Mitigation Summary ProjectRecommended Improvements Int Intersection Control M%23 Existing Traffic 2026 Traffic 2026 Traffic (No-Build) with-Widen Lake Hazel Road west of S. Eagle Road to three lanes with a two-way,turn lane -Widen Lake Hazel Road east of Side- S. Eagle Road to five lanes with 1 Discovery Park& Street a two-way,turn lane No Additional No Additional Lake Hazel Rd Stop -Add two southbound left turn Improvements Improvements lanes on S. Eagle Road -Add a single northbound left turn lane on S. Eagle Road -Add a traffic signal 2 Lake Hazel Rd & All-Way S. Eagle Road to three lanes Widen Lake Hazel Road west of No Additional No Additional Eagle Rd Stop with a two-way,turn lane Improvements Improvements S. Eagle Dr& Side- 3 Vantage Pointe Ln Street n/a n/a None (E) Stop Discovery Park& Side- 4 Vantage Pointe Ln Street n/a n/a None (E) Stop Discovery Park& Side- 5 Driveway K Street n/a n/a None Stop Discovery Park& Side- 6 Vantage Pointe Ln Street n/a n/a None (W) Stop Intersection Mitigation Summary IntersectionRecommended Improvements Int 2023 Existing Traffic 0 . Traffic (No-Build) with Project - LWiden Lake Hazel Road east of Lake Hazel Rd between No Additional No Additional A Locust Grove Rd and Eagle Rd S. Eagle Road to five lanes with Improvements Improvements a two-way,turn lane Widen Lake Hazel Road west of B Lake Hazel Rd between Eagle S. Eagle Road to three lanes No Additional No Additional Rd and Cloverdale Rd with a two-way,turn lane Improvements Improvements C Eagle Rd between Lake Hazel None None None Rd and Columbia Rd Traffic Impact Study for Reveille Ridge Subdivision 11 [ NV5-3123036.00 IN, J TABLE OF CONTENTS EXECUTIVE SUMMARY.................................................................................................................... i ProposedDevelopment................................................................................................................. 1 ExistingConditions.........................................................................................................................4 A.I. Transportation Facilities .................................................................................................4 A.1.1. Roadways ...............................................................................................................4 A.1.2. Transit Service........................................................................................................5 A.1.3. Bicycle and Pedestrian Facilities ..........................................................................5 A.1.1. Geometrics.............................................................................................................5 A.2. Traffic Volume..................................................................................................................5 A.3. Existing Levels of Service................................................................................................9 A.4. Existing Conditions Mitigation ......................................................................................10 A.S. Safety Analysis...............................................................................................................12 A.6. Data Sources.................................................................................................................13 BackgroundConditions ...............................................................................................................14 B.1. Planned Roadway and Approved Development Projects ...........................................14 B.2. Background Data...........................................................................................................14 B.3. Background Levels of Service ......................................................................................19 B.4. Background Growth Conditions Mitigation..................................................................19 B.S. Data Sources.................................................................................................................20 ProjectedTraffic...........................................................................................................................21 C.1. Project Trip Generation.................................................................................................21 C.2. Trip Distribution and Assignment.................................................................................21 TrafficAnalyses............................................................................................................................26 D.1. Build Condition Capacity Analysis ................................................................................26 D.2. Build Conditions Mitigation...........................................................................................27 Conclusions and Recommendations..........................................................................................28 E.1. Capacity Analysis Conclusions .....................................................................................28 E.1.1. Lake Hazel Road at Discovery Park Collector....................................................28 E.1.2. Lake Hazel Road at S. Eagle Road .....................................................................28 E.2. Driveway Analysis..........................................................................................................28 E.3. Parking Requirements ..................................................................................................30 APPENDIX A: Site Plan ...................................................................................................................A APPENDIX B: Traffic Counts...........................................................................................................B APPENDIX C: Scoping Document..................................................................................................C APPENDIX D: Highway Capacity Worksheets ...............................................................................D APPENDIXE: Crash Data ............................................................................................................... E Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-3123036.00 LIST OF TABLES Table 1: Roadway Classification .................................................................................................................5 Table2: Segment ADTs ...............................................................................................................................6 Table 3: Level of Service Criteria ................................................................................................................9 Table 4: ACHD Segment Capacity Guidelines............................................................................................9 Table 5: Intersection Level of Service Results - Existing Conditions.................................................... 10 Table 6: Segment Level of Service Results - Existing Conditions......................................................... 10 Table 7: Signal Warrant Analysis - Existing Conditions ......................................................................... 11 Table 8: Existing Conditions Mitigated Analysis Results........................................................................ 12 Table9: Accident Summary...................................................................................................................... 12 Table 10: Intersection Level of Service Results - Background Growth Conditions ............................. 19 Table 11: Segment Level of Service Results - Background Growth Conditions .................................. 19 Table 12: Intersection Level of Service Results - Mitigation for Background Conditions................... 20 Table13: Trip Generation......................................................................................................................... 21 Table 14: Intersection Level of Service Results - Full Build Conditions............................................... 26 Table 15: Segment Level of Service Results - Full Build Conditions.................................................... 27 Table 16: Intersection Level of Service Results - Mitigation for Build Conditions............................... 27 LIST OF FIGURES Figure 1. Vicinity Map and Study Locations...............................................................................................2 Figure2. Site Plan........................................................................................................................................3 Figure 3. Roadway Geometrics...................................................................................................................7 Figure 4. Base Traffic Volumes (2023).......................................................................................................8 Figure 5. Approved Adjacent Development............................................................................................. 15 Figure 6. Adjacent Development Trip Generation................................................................................... 16 Figure 7. Adjacent Development Traffic Volume..................................................................................... 17 Figure 8. No-Build Traffic Volume (2026)................................................................................................ 18 Figure9. Trip Distribution......................................................................................................................... 22 Figure10. Trip Assignment ...................................................................................................................... 23 Figure11. Site Trips.................................................................................................................................. 24 Figure12. Build Traffic (2026)................................................................................................................. 25 Figure13. Right Turn Lane Analysis........................................................................................................ 29 Figure 14. Left Turn Lane Analysis ..........................................................................................................30 Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-3123036.00 1 Proposed Development A new 264-unit subdivision is proposed along S. Eagle Road in Meridian, ID. The primary access will be via the new Vantage Pointe Lane collector road on Eagle Road, between Columbia Road and Lake Hazel Road. There will also be an access point to the north on Lake Hazel Road via the new Discovery Park mid-mile collector road. The development is expected to be complete by 2026. The following intersections and road segments (as illustrated in Figure 1) are included in this study: • Intersections 1. Future Discovery Park mid-mile collector and Lake Hazel Road 2. Lake Hazel Road/ Eagle Road 3. Proposed Vantage Pointe Lane (MSM Collector)/ Eagle Road 4. Vantage Pointe Lane (E)/ Future Discovery Park mid-mile collector 5. Proposed Street K and future Discovery Park mid-mile collector (Street L on plan) 6. Vantage Pointe Lane (W)/ Future Discovery Park mid-mile collector • Segments A. Lake Hazel Road between Farr Lateral/Future mid-mile collector with Discovery Park and Eagle Road B. Lake Hazel Road east of Eagle Road C. Eagle Road between Lake Hazel Road and collector site access (Vantage Pointe Lane on plan) Figure 1 shows the general location of the site;the site plan is shown in Figure 2. Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 a Hazel&.Fu_ture_Discovery Park Collector if •aa +�=le R e _ E Lake.Ma3e RCll'We.H53Eli SI n Ca - ti L Penne•kr�.� - k •..t S4 ee a t e�iscovery •a Colle�� r. _ 6.Vanta•e Poi t (W)/F re Dsc•ve Park Collector _ ___ E•Vaniage•Pomle•ka � �- ■.�• y ` 0 •r 4.Vantage.Pointe Lane(E)7 Future Discovery Park Collector I - a,'aye,90ini - -• _ ,p. Eagle Rd&New Vantage Point Lane t 'Son a ai iMomIlt E�Golo Oial�e�El6tlf4m6ra'IF,Y Co rt'.Dia:Ra EtCOffim2"ul � Eo1 0 C�tiialK ��I� 3 Figure 2. Site Plan HOLES PRELIMINARY PLAT FOR 77 MAMIE EAGLE ROAD SUBDIVISION 2023 ,E.1 1 T T Sit !I r ® ® ® O PLAN SHEET INDEX I I m \ I ® =O (B) SHEE[ DESCRIPTION I PP-1 -COVER SHEET.INDEX,VICINITY MAP, NOTE - - - I PP-2 �REL MINARY PLAT WEST LAYOUT , PP-3 -PRELIMINARY PLAT EAST LAYOUT r ® I (SA 4 a I (3) G 1 ©t 14, ®&I PP-4 -PARCEL k CURVE TABLES 1 rmm �8 PP-5 -EXISTING TOPOGRAPHY PP-6 -ADJACENT PROPERTIES _ -ENGINEERING PP-8 -PRELIMINARY SEWER PROFIL SSECnONS ! PP-9 -PRELIMINARY SEWER PROFILES I ® i m m m® o o z c o z GL ' J ®® / Wa \ _ 0 ^a ® (z °I ` Jrc PP-1 Traffic Impact Study for NV5 Reveille Ridge Subdivision NV5-3123036.00 4 Existing Conditions A.1. Transportation Facilities A.1.1. Roadways LAKE HAZEL ROAD is a two-lane arterial with a posted speed limit of 35 MPH within the vicinity of the study area. As of the writing of this report, the road was closed west of S. Eagle Road and was being widened to three lanes with a two-way,turn lane (TWTL). There is a roundabout at the intersection with Locust Road Grove Road. Further west, the road intersects with SH 69. The intersection with S. Eagle Road is an all-way stop controlled intersection. Lake Hazel Road will be widened to five lanes with a TWTL east of S. Eagle Road. Construction is to begin in 2024. The land use in the area is primarily residential or agriculture. S. EAGLE ROAD is a two-lane undivided arterial with a posted speed limit of 35 MPH. The road runs north/south and connects Meridian with southern Ada County. Land uses in the study area are residential and undeveloped. DISCOVERY PARK COLLECTOR ROAD will be a two-lane, undivided, mid-mile collector road that will run between Lake Hazel Road and Columbia Road, parallel to S. Eagle Road. It is assumed that it will have a speed limit of 35 MPH. The road will provide access to the subject development as well as other planned residential developments. The proposed road name is not known so for the purposes of this study, it is referred to as "Discover Park Collector." VANTAGE POINTE LANE will be a new two-lane, undivided, mid-mile collector road will run from S. Eagle Road to Locust Grove Road, paralleling Lake Hazel Road. It is assumed that it will have a speed limit of 35 MPH. The subject development will partially block the direct route between those two arterials such that the portion of Vantage Pointe Lane adjacent to the development will form offset T-intersections with S. Eagle Road and with the Discovery Park Collector. West of the Discovery Park Collector, the road is referred to in this report as Vantage Pointe Lane (W) and the segment east of Discovery Park Collector is Vantage Pointe Lane (E). Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 5 Table 1: Roadway Classification Roadway Classification Lake Hazel Rd West of Eagle Rd Principle Arterial Lake Hazel Rd East of Cloverdale Rd Principle Arterial S. Eagle Rd between Btwn Lake Hazel Rd and Columbia Rd Principle Arterial Discovery Park Collector Btwn Lake Hazel Rd and Columbia Rd Collector Vantage Pointe Lane (E) Btwn S. Eagle Road and Discovery Park Collector Collector Vantage Pointe Lane (W) Btwn S. Discovery Park Collector and Collector Locust Grover Road A.1.2. Transit Service There are no fixed-route transit services in the study area that would serve the site. A.1.3. Bicycle and Pedestrian Facilities The construction of Lake Hazel Road will include bike and ped facilities. No other like facilities are nearby. A.1.1. Geometrics The specific roadway lanes and traffic control are shown in Figure 3. A.2. Traffic Volume Because of construction in the area that has closed or partially close several streets, traffic counts that reflect "standard" conditions could be collected. As a result, the following methods were used to develop traffic counts for the study intersections: Lake Hazel Road and Future Discovery Park • Project traffic from Apex development plans per City of Meridian Planning • Volumes at Lake Hazel Road & Eagle Road used to estimate thru traffic on Lake Hazel Road • Similar distribution percentages as the subject development Lake Hazel Road & Eagle Road • Archived Turning Movement Counts- November 18, 2021 • 7-9 AM and 4-6 PM • Adjust to 2023 using growth projections (see next section) Eagle Road & Proposed Vantage Pointe Lane • Volumes at Lake Hazel Road & Eagle Road used to estimate thru traffic on Lake Hazel Road Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 6 A single common peak hour was determined for all intersections; the morning peak hour is 7:00 to 8:00 AM and the afternoon peak hour is between 4:30 and 5:3Op. Base traffic volumes are shown in Figure 4. The segment volumes are shown in Table 2. Table 2: Segment ADTs ID -..d Segment AD A Lake Hazel Rd between Locust Grove Rd and Eagle Rd 5100 B Lake Hazel Rd between Eagle Rd and Cloverdale Rd 7200 C Eagle Rd between Lake Hazel Rd and Columbia Rd 1900 *Source:2022 COMPASS Data Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 7 Figure 3. Roadway Geometrics Lake Hazel Rd 0 0 I I I �I ® Driveway K d t.► ag co I CL a Vantage Pointe Ln 40 I �I0 Vantage A — o/Ne ` ` — —� � o ® � � U � Y 7 � � a N Le end I Lane Assignment NOT TO n Proposed Roads/Dwys SCALE Traffic Impact Study for Reveille Ridge Subdivision [ NV5-3123036.00 NV5 8 Figure 4. Base Traffic Volumes (2023) 0co 0 (0 m O L' 0 t 212(184) H 379(491) -1 (0 -1 362(418) r 0(0) Lake Hazel Rd 4J 14 r 4(32) 376(463) h r► 85(18) 1 h t t+ 0(0) Z I o 0 282(436) ti 0 ti 0 0 9(9) Z ti771 v °0 04 O O 1 O O 0(o l 4 I r 0(0) Driveway K m rMt CIS CD 00 0 0— Vantage tPointe Ln 0(0) J ,*, 0(0) Z 1 0 0 00 0 0 O o 1 t 0 l4 (0) 0 0 (0) Vantage A 0m `hte n 0 w 0 0 ''1 8 a)Q o O O 0(0) �U Y I 0(0) Z 0 m za orn LL - ti LO CV 1 Le end IhN =Traffic Volume Direction NOT TO 00(00)= AM(PM)Peak Hour Volumes SCALE Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-31 23036.00 9 A.3. Existing Levels of Service The LOS is based on the Highway Capacity Manual (6th Ed.), as calculated in the software Synchro® 11. Table 3 shows the criteria used to determine level of service for signalized, unsignalized, and roundabout intersections. Table 4 shows the level of service criteria for segments as outlined in ACHD standard 7106.4. The values shown are one-way, peak hour volumes. Table 3: Level of Service Criteria Level of Service Average Control Delay Signal .. Control Roundabout A 0 - 10 0 - 10 0 - 10 B >10 - 20 >10 - 15 >10 - 15 C >20 - 35 >15 - 25 >15 - 25 D >35 - 55 >25 - 35 >25 - 35 E >55 - 80 >35 - 50 >35 - 50 F >80 >50 >50 Table 4: ACHD Segment Capacity Guidelines ThresholdsFunctional Classification Lanes Volume No Left-turn Lane 1 600 690 Cc 1 770 880 Continuous TWTL 2 1,680 1,780 Q 3 2,560 2,720 Median Control, Channelized 1 850 920 Left-turn Lanes 2 1,860 1,960 3 2,800 3,000 No Left-turn Lane 1 540 575 Cc 1 675 720 Continuous TWTL 2 1,395 1,540 Q 3 2,155 2,370 Median Control, Channelized 1 710 770 Left turn Lanes 2 1,465 1,670 3 2,270 2,530 No Left-turn Lane 1 425 525 o Continuous TWTL 1 530 660 U 2 1,080 1,250 Many of the analysis parameters are established by ACHD. These are shown in Appendix D. The results of the existing conditions analysis are shown in Table 5. Movements that appear highlighted in red are LOS F and those in are LOS E. Table 6 shows the segment analysis for the roadways that are proximate to the development. Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 10 Table 5: Intersection Level of Service Results - Existing Conditions AM PM ID Intersection Control Movement • D- • • • Overall F 146.4 - - F 332.9 - EB F 68.8 1.02 274 F 165.4 1.47 412 2 Lake Hazel Rd & All-Way WB F 291.2 1.31 890 F 363.8 1.76 828 Eagle Rd Stop NB D 26.3 0.68 86 C 23.3 0.48 32 SB C 22.8 0.59 62 F 479.9 1.79 1122 Table 6: Segment Level of Service Results - Existing Conditions Functional No. Left-Turn Pk Hr Pk Dir Threshold No. Segment Class Lanes Treatment (Dir)* Vol LOS LOS • Lake Hazel Rd between Principal PM A Locust Grove Rd and Eagle Arterial 1 None (WB) 491 600 690 <D Rd B Lake Hazel Rd between Principal 1 None PM 634 600 690 E Eagle Rd and Cloverdale Rd Arterial (WB) C Eagle Rd between Lake Principal 1 None PM 310 600 690 <D Hazel Rd and Columbia Rd I Arterial (SB) *Highest peak hour volume in one direction AA Existing Conditions Mitigation The intersection of Lake Hazel Road and S. Eagle Road already has capacity issues. The capacity analysis reports very long delays and queues at the existing all-way stop controlled intersection. However, field observations do not confirm this result. The discrepancy is probably due to the way the volumes were developed and projected because of detouring traffic in the area. Regardless,the COMPASS model output indicates that even if the base volumes are not present in 2023, they will be soon without the project. There are no published improvements specific to the traffic control at for Lake Hazel Road and S. Eagle Road in the Ada County Master Street Map plan. A roundabout or a traffic signal are likely improvement options. A traffic signal was examined to see if it meets the criteria in the Manual on Uniform Traffic Control Devices, FHWA. Using the 70%volume reduction for facility with speeds over 45 MPH, the results of the warrant analysis with the four hours for which data are available is show in Table 7. Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 . • •nal Warrant Analysis - Existing Conditio 70%Criteria 70%Criteria 70%Criteria Ha el Rd Eagle Rd Warrant 1A Warrant 1B War2rant War3rant Hour Approach Major Street Minor Street Major Street Minor Street Combined Volume w/ Condition Condition Condition Peak Volume Right Met? Met? Met? Condition Four-Hour Hour Turns (Major>350) (Minor>105) (Major>525) Met? (Minor>53) 11. -- -- . 11. -- -- 11. • • 259 YES YES YES YES ®® 8:00a 684 231 YES YES YES YES YES YES • 11. 1 11. 11:00a 12:00p No Data Available 11• 11• 11• 4:00p 984 568 YES YES YES YES YES YES 5:00p 1069 665 YES YES YES YES YES YES • 11• -- -- 11• -- -- Number of Hours Neede�� �� 8 4 1 *Only four hours of data were avai I able.See Section A.2 for more information on traffic counts. Because other nearby intersections are planned to be or have been converted to roundabouts, that may be a solution here. However, both solutions were examined. Table 8 shows the results of the capacity analysis for both a signal and a roundabout option. Traffic Number of Hours Met '� �� 4 4 � 4 Warrant Satisfied? ,! NO* �� NO* YES YES Impact Study • Reveille Ridge Subdivision 1 • 11 NV5 12 Table 8: Existing Conditions Mitigated Analysis Results AM PM ID Intersection Mitigation Movement LOS D- • (ft) LOS D- • Overall A 6.6 - - B 11.3 - - EB A 5.4 0.30 20 C 14.7 0.62 100 2 Lake Hazel Rd Roundabout WB A 7.4 0.41 40 A 5.8 0.37 40 & Eagle Rd NB A 7.6 0.32 20 A 7.6 0.20 20 SB A 5.6 0.21 20 C 14.6 0.70 120 <<< OR >>> Overall C 21.4 0.75 - C 22.0 0.86 - EBL C 30.5 0.44 84 C 29.5 0.11 21 EBTR B 12.0 0.40 159 B 16.4 0.66 298 Signal plus WBL B 14.7 0.01 7 C 22.4 0.11 29 2 Lake Hazel Rd left turn WBTR B 18.7 0.78 377 C 24.8 0.87 440 & Eagle Rd lanes on all approaches NBL C 25.2 0.02 13 C 27.9 0.05 15 NBTR D 37.4 0.83 223 C 34.3 0.69 80 SBL C 23.1 0.47 83 C 25.3 0.73 285 SBTR B 17.3 0.16 58 B 16.5 0.53 218 Lake Hazel Road is included in the COMPASS Transportation Improvement program to be improved to five lanes with curb, gutter, and a ten-foot multi-use path from Eagle Road to Cloverdale Road (RD209-18). The project is anticipated to begin construction in 2024. This improvement will bring the segment level of service to above a `D'. A.S. Safety Analysis The most current crash data (2018-2022) as documented by the Local Highway Technical Assistance Council (LHTAC) website (http://gis.lhtac.org/safety/)was reviewed and is summarized at each of the study intersections and road segments. (See Table 7.)Appendix E includes a more detailed account of crash types at each intersection and road segment. Table 9: Accident Summary Int Intersection Total* PDO/Inj/ Crash No. Crashes Fatal Rates** 2 1 Lake Hazel Rd at S. Eagle Rd 6 2/4/0 0.41 Total*Seg. Segment PDO/Inj/ Crash Crashes Fatal Rates** A Lake Hazel Rd between Locust Grove Rd and Eagle Rd 1 0/1/0 10.7 B Lake Hazel Rd between Eagle Rd and Cloverdale Rd 9 5/4/0 68.5 C Eagle Rd between Lake Hazel Rd and Columbia Rd 1 0/1/0 28.8 *Total number of crashes between 2018 and 2022; **Crash rates for intersections are expressed as number per 1 million entering vehicles per year. Rates for roadway segments are expressed as number per 100 million-miles traveled. Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 13 A.6. Data Sources Roadway geometrics were observed by a site visit and are described. Level of Service criteria is from in the Highway Capacity Manual, 6th Ed, as shown in Table 3. Segment LOS is from ACHD 7106.4.1 Table 2. Crash data is reported by the Idaho Local Highway Technical Assistance Council. Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 14 Background Conditions B.1. Planned Roadway and Approved Development Projects Other developments have been permitted in the area. These include the following approved projects: • Apex Northwest Subdivision • Apex Southeast Subdivision • Apex West Subdivision • Discovery Park • Hadler Subdivision • Pura Vida Ridge Subdivision • Rescue Ranch • Sky Mesa Commons • Skybreak • Vertex Subdivision B.2. Background Data The Apex Southwest (aka Discovery Park subdivision),the Discovery City Park, and the Vertex subdivision traffic volumes were included as an in-process development. To examine traffic along the new mid-mile collector roads, an estimate was made for the Hadler and Rescue Ranch subdivisions, too. These two residential developments will have access along the extension of Vantage Point Lane between Locust Grove Road and the new Discover Park Collector. While the development timeline for all of these varies, for the purposes of this study,they were assumed to be build-out by 2026. This assumption likely overstates the traffic volume in the build-out year, but it creates a more conservative analysis. Figure 5 shows the location of the adjacent approved development. To compute the traffic from the "in-process" adjacent development,the trip generation for those developments were distributed to the study intersections in a similar manner as the trips from the subject site. (See Section C.2) Figure 6 shows the trip generation and the distribution of the adjacent development. Figure 7 shows the traffic volume from the nearby developments on the study road network. COMPASS model growth rates range from 6.9% on Eagle Road, north of Lake Hazel Road to 11.4% south of Lake Hazle Road. Lake Hazel projections are generally 10-11%. The Base Year volumes were escalated by 10% per year, compounded for three years (a factor of 1.33)to create the Build Year(2026)volume. The common growth rate accounts for development traffic not directly figured into the adjacent traffic described above. Figure 8 shows the Existing+ Adjacent + Background Growth traffic volume, i.e., No-Build traffic. Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 :iki:f?arid H:I 4'3 r L LakC Hazel Rl: E Ld ke H,l xeI Rd E L.ikr Ha2F�u•I _ —_ LakC I1azCi Rd The Keep r s ` {„{ et rli,rrI..D. —_ 39 units 11 ..• Vertex#1 f _ i le Church of F-TodrerBt - I 37 units , _;,s.j,T,, is't a Laster.... . ip I Apex SE#1 _ a 1 18 remaining iH1j r■■��T ' Discovery Park r Vertex 50 Acres #2 •J� ' l� _ c� „IM Mir t M units ■r„ !' Apex SE#2 Is i' or i� remainin=■��i ■ ,� ■ Skybreak 328 units H f hing:Horse Apex SE#3 �,. as units R el,IleRi 2. Vantage Pointe Ln q E-Vanlage,Pointe,Lo •t;c Ila Hadler 145 units Rescue Ranch Vantage Pointe Ln 103 units S avafu.Ln .E C.a o k ' tii , N O — T ... .. _ U .l.- G w' mNmlit N W' 0 n lwiwso m n ;, s• " Approved Nearby Developments Dofe sources:LandPro Oeto,-City of Mendion a �� rt i ,m•� .. As of 6/2I12023 -�' j E Coluinhia Rd F Co:un:6ia Sid F.CdI hialRd �E calum6l33Rtl �C€Iumhia2Rd E;Gp! hialRd EiColumbi euake Hazeb Rd��L'akeHaxefRe ! 11Rtl C La C tint(•:RC L La.^H;i;r:Rd -f+ C I dkr F7rry NI a.l Loke IImze;Rd 14% '4 14% W-11.� i Ip 6% ChurCh —¢-ET°wec5t__ r r, r�A'"w fiat l7f Laster... •is`L -°.y°'^ AL Discovery f i City Park c Discover Pa o. I AM:1/1 Subdivisio �I I PM-14/12 1•., a.�r■■� AM:27n3 �I .1■: PM:3bI5U r" rillWl lilt T hing Horse = nd Horse... Mille Rid R d _ Vantage Pointe Ln mi E-Vantage•Pninte Ln a • �. •; IL FTadler Rescue Ranch AM:27M AM:20/57 M� ' r' _gel_.,_..'r �l Om 89/52 PM:64/38 Vantage Pointeln r 1 F CriVa11.-Ln o , V. aq t t; � t o V o Y . a, TY�"• n a ' r• #ti _ Trip Generation and Distribution 1y } Arrows represent outbou nd distribution. ` � - m L. I n�bou nd d istri bution isthe retrerse. z� E.CDlu�fnh3alRd €lCAlumhis:Rd ECcI him Rd E Columbia Rd o:umbia Rd E; u Eia!Rd i E;Columhi 17 Figure 7. Adjacent Development Traffic Volume 0 o o L 0(o) o o 6(26) �-- 9(33) H r r 19(62) Lake Hazel Rd 4J l t+ 0(0) 17(15) —+ h r► 65(46) J h t �► 7(22) Z I � 0 270(0) Z o 0 0 �n 00 0 O LO I o O L 0(0) 1�► I r o(0) Driveway K m rt & CD 00o a 0 m N N_M N r � l Vantage I Pointe Ln 20(14) J 4)t 7(5) Z I oo N N O I L 0(0) l4 r 0 ) Vantage Oo 00 i hte 41** 4 1 I040 o0 0(0) +11 (DY I 0(0) '1 00 � a 00 L - Legend IN =Traffic Volume Direction NOT TO 00(00)= AM(PM)Peak Hour Volumes SCALE Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-31 23036.00 18 Figure 8. No-Build Traffic Volume (2026) 0000LO C.0m �00 � t 282(245) H 510(682) +— 491(589) r 19(62) Lake Hazel Rd 4J 4 r 5(43) 517(631) 41 r► 178(70) J h t �► 7(22) I 402(598) 12(12) Z 00 N O Ln M r N N _ I M �O O t 0(0) 1�► I r o(0) Driveway K m rt & CD 00o a 0 m N N_C� N r � l Vantage I Pointe Ln 20(14) J 4)t 7(5) Z I oo N N o I t 0(0) ly o 0 ( ) Vantage p � `hie n o 0 it 41 — — o 0(0) 1 h T 0(0) CL _ o04 LL Cn Legend IN =Traffic Volume Direction NOT TO 00(00)= AM(PM)Peak Hour Volumes SCALE Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-31 23036.00 19 B.3. Background Levels of Service The existing plus background growth levels of services for intersections are shown in Table 10. The segment analysis is shown in Table 11. Table 10: Intersection Level of Service Results - Background Growth Conditions ID Intersection Control Movement AM PM • • • • Side- Overall A 1.4 - - A 1.2 - - 1 Discovery Park& Street WBLTR A 8.7 0.02 2 A 9.4 0.08 6 Lake Hazel Rd Stop NB B 14.9 0.23 18 C 17.1 0.19 14 Overall F 195.8 - - F >500 - - EBL D 33.0 0.66 80 C 21.2 0.32 16 EBTR F 320.0 1.45 626 F >500 2.57 928 Lake Hazel Rd & All-Way WBLTR B 13.5 0.02 0 C 19.3 0.19 8 2 Eagle Rd Stop WBT F 375.3 1.50 814 F 449.4 2.44 700 WBLTR E 39.0 0.81 144 D 33.6 0.99 72 NB F 112.5 1.10 312 D 27.7 0.61 2498 SB F 73.3 1 1.00 222 F >500 2.94 34 Discovery Park& Side- Overall A 5.9 - - A 3.9 - - 6 Vantage Pointe Street EB A 8.6 0.03 2 A 8.7 0.02 2 Ln (W) Stop NBL A 7.2 0.00 0 A 7.3 0.01 0 Table 11: Segment Level of Service Results - Background Growth Conditions Functional No. Left-Turn No. Segment Class Lanes Treatment Plk� Plk Threshold •S LOS LOS Lake Hazel Rd between Principal PM A Locust Grove Rd and Eagle Arterial 1 TWTL (WB) 766 770 880 <D Rd Lake Hazel Rd between Principal PM B Eagle Rd and Cloverdale Arterial 2 TWTL (WB) 877 1680 1780 E Rd C Eagle Rd between Lake Principal 1 None PM 413 600 690 <D Hazel Rd and Columbia Rd I Arterial (SB) *Highest peak hour volume in one direction BA Background Growth Conditions Mitigation Lake Hazel Road at S. Eagle Road As previously mentioned, Lake Hazel Road is included in the COMPASS Transportation Improvement program to be improved to five lanes with curb, gutter, and a ten-foot multi-use path from Eagle Road to Cloverdale Road (RD209-18). The road is currently(as of this writing) under construction to the west of the intersection to be a three-lane road with a TWTL. Since both projects are anticipated to be open before the site build-out date, they are included in the No-Build conditions. Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 20 For the intersection, the all-way stop control will no longer be functional with the widening and with the additional traffic in the area. A traffic signal will work and will be warranted. A roundabout will work for some time but as traffic volumes increase, its efficiency will diminish. Recommendation(s): o Widen Lake Hazel Road west of S. Eagle Road to three lanes with a two-way,turn lane o Widen Lake Hazel Road east of S. Eagle Road to five lanes with a two-way, turn lane o Add two southbound left turn lanes on S. Eagle Road o Add a single northbound left turn lane on S. Eagle Road o Add a traffic signal Table 12 shows the results of mitigation from both the existing conditions improvements (see Section A.4) and the background growth conditions. Table 12: Intersection Level of Service Results - Mitigation for Background Conditions IntersectionAM PM ID • Movement Discovery Park Widen Lake Overall A 1.3 - - A 1.1 - - 1 & Lake Hazel WBLTR A 8.6 0.02 2 A 9.3 0.08 4 Rd Hazel Rd NB B 14.6 0.22 16 C 16.7 0.18 14 Overall B 11.1 - - C 11.3 - - Roundabout, EB A 6.6 0.34 40 D 27.2 0.74 140 2 Lake Hazel Rd Widen Lake WB C 15.6 0.71 140 B 10.2 0.64 100 & Eagle Rd Hazel NB B 14.3 0.54 60 B 13.1 0.30 20 SB A 6.1 0.18 20 C 18.6 0.77 160 <<< OR >>> Overall C 27.7 0.87 - C 28.7 0.92 - EBL D 43.9 0.44 229 C 34.1 0.11 28 EBTR B 15.4 0.40 259 C 24.7 0.66 292 Signal plus WBL C 20.1 0.01 8 C 32.3 0.11 16 2 Lake Hazel Rd left turn WBT B 17.0 0.78 326 C 22.9 0.87 277 & Eagle Rd lanes on all WBR B 14.3 0.02 41 B 14.4 0.05 0 approaches NBL C 26.4 0.02 16 D 35.6 0.05 5 NBTR E 56.0 0.83 353 C 34.4 0.69 57 SBL D 49.5 0.47 90 D 41.8 0.73 128 SBTR C 1 20.2 1 0.16 1 96 1 C 1 33.0 1 0.53 254 B.S. Data Sources COMPASS supplied the forecasts for 2025 and 2030 PM peak hour traffic. No other approved developments were provided or incorporated into the projections for 2025 `no-build' analysis. Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 21 Projected Traffic C.1. Project Trip Generation The development will include 137 single-family units and 127 townhomes. The number of trips generated by the proposed development was estimated using the equations provided in the ITE Trip Generation Manual, 11th Edition. Table 13 provides a summary of these results for daily, AM peak hour, and PM peak hour conditions. Table 13: Trip Generation Land AM Peak Hour PM Peak Hour Use Detail Factor Daily IN • • � • TOTAL ..- 01 210 Single-Family Detached Housing 137 units 1,348 26 7 99 84 50 134 215 Single-Family Attached Housing 127 units 918 19 41 60 41 31 72 (Townhome) Total Gross Trips 2,266 45 114 159 125 81 206 C.2. Trip Distribution and Assignment The assignment and directional distribution of new project trips on the transportation network are based on the expected employment in the area and the location of schools. The expected distribution of auto traffic is approximately 25%to the west, 45%to the north, 10%to the south, and 20%to the east. The directional distribution of traffic is shown in Figure 9. The intersection-specific percentages and assignment of the site trips are shown in Figure 10. The assigned traffic is shown in Figure 11. The future Build traffic volume is shown in Figure 12. Traffic Impact Study for Reveille Ridge Subdivision 11 [ NV5-3123036.00 IN, J F Luke HazeliRd L`dke:Haxel-Rdr e���{ia7Allittl k.Llkc Hexel'Rd C Laic HazrI Rd C I-,ikr•Hei-I u,l Ljkc Hazel Rd.� ■ .. Discovery, Cn — IR:I O _° G'U�Cv'V�d�fl3_: tj ii'r �..j lien li i,: - n D -•; rr l - ... - — S '�s 7he::hur::i of '6TpwecSt_ --- "E - - - "-' orltit of Latter„ _ i, rAr �11U � �91ey:pr eveille Rid _ •�. rn m �n Cf10 Lr1 E-Va rnag e•Pointe Ln^ - bra IL Vantage Pointe F_n v � tl L Cavalf-LntJ of , s f 4 0 o Ak �` �L• Site s Distribution out Arrows re resent outh ound distribution. nboound distribution isthereverse. -I r .4a ' iColr�b3alRd E�CGlumhi .E:C,olr:lriibia Rfi ,. ��E;Columbia Rfi ¢ f E;Columhi E.C#lumhia Rd E; hia.Rtl 23 Figure 10. Trip Assignment o t (5%) rn v H 5% 10% 4 1 4 r 15% r Lake Hazel Rd 5%—+ ♦1 f+ (5%) 1 +1 1 15% (5%) —+ ILO 0 0 LO LO 0 5% Z rn ov LO I I o LO t (15%) 4 I r (4%) Driveway K M �t CIS I CD o � a o N o v N O IVantage Pointe Ln 4'1 1 2% 1 3% '!V I M O A' N N I t (13%) 14 r (3%) Vantage o �0 I \ \2 N M o I (60%) J 411 (5%) j LL La Legend rRN =Traffic Volume Direction NOT TO %(%)= In(Out)Distribution SCALE Traffic Impact Study for Reveille Ridge Subdivision 11 [ NV5-3123036.00 IN, J 24 Figure 11. Site Trips LO N ° o t 0(D) H 6(4) H 2(6) r 5(13) Lake Hazel Rd 4J 4 r 7(19) 2(6) —+ � & 6(4) 1 41 1 7(19) Z 6(4) —+ 2(6) z m v r-- I I LO ~ t 17(12) 4 I r 5(3) Driveway K m 00 L a �—I N N ti Vantage t Pointe Ln 1(3) 1� 411 1(4) Cn N N_-i N co I t 15(11) 14 r 3(2) Vantage A d o `rye<h c�v o 4l > p I 68(49) J «1 1 mY 6(4) Z coo - No Le end Nf =Traffic Volume Direction NOT To 00(00)= AM(PM)Peak Hour Volumes SCALE Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-31 23036.00 25 Figure 12. Build Traffic (2026) v o Ln � vv o t 282(245) 516(686) H 493(595) r 24(75) Lake Hazel Rd 4 l 4 r 12(62) 519(637) —+ h & 184(74) J h t �► 14(41) I 408(602) N LO 14(18) t N m r-- (0 It t 00 m 00 c1 0) N m M � ~ t 17(12) 4 I r 5(3) —� Driveway K m t CD CD (0LO N Q N Lo vl m N m � r-I Vantage t Pointe Ln 21(17) 1 ht 8(9) Z I o LO o Lo � �(0 1 I t 15(11) ^� l~ r 3(2) Vantage ti > t 4)l p LO 68(49) .� 411 m i 6(4) Z cfl La L N V m ` 1 Legend IN =Traffic Volume Direction NOT To 00(00)= AM(PM)Peak Hour Volumes SCALE Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-31 23036.00 26 Traffic Analyses D.1. Build Condition Capacity Analysis The results of Build (2026) conditions capacity for intersection are shown in Table 14 and include the analysis of the volumes shown in Figure 9. Table 15 shows the segment level capacity analysis for the build conditions. Table 14: Intersection Level of Service Results - Full Build Conditions AM PM ID Intersection Control Movement • • • • Side- Overall A 2.5 - - A 2.6 - - 1 Discovery Park& Street WBLTR A 8.7 0.03 2 A 9.6 0.10 6 Lake Hazel Rd Stop NB C 22.2 0.40 38 E 38.5 0.47 48 Overall F 230.7 - - F >500 - - EBL E 36.9 0.73 88 C 23.2 0.36 18 EBTR F 350.8 1.59 638 F >500 2.78 956 Lake Hazel Rd & All-Way WBLTR B 14.4 0.04 2 C 21.9 0.30 12 2 Eagle Rd Stop WBT F 394.7 1.59 804 F >500 2.70 718 WBLTR E 42.5 0.86 146 E 37.9 1.08 78 NB F 236.7 1.34 528 E 35.9 0.87 56 SB F 98.3 1.10 268 F >500 3.23 2714 S. Eagle Dr& Side- Overall A 1.7 - - A 1.2 - - 3 Vantage Pointe Street EB B 12.8 0.15 10 B 14.4 0.13 10 Ln (E) Stop NBL A 7.5 0.00 0 A 8.5 0.01 0 Discovery Park& Side- Overall A 4.6 - - A 3.9 - - 4 Vantage Pointe Street WB A 8.5 0.02 2 A 8.5 0.01 0 Ln (E) Stop SBL A 7.2 0.00 0 A 7.3 0.01 0 Side- Overall A 3.0 - - A 2.6 - - 5 Discovery Park&Driveway K Street WB A 8.6 0.02 2 A 8.6 0.03 2 Stop SBL A 7.3 0.01 0 A 7.3 0.02 0 Discovery Park& Side- Overall A 4.3 - - A 3.2 - - 6 Vantage Pointe Street EB A 8.8 0.03 2 A 8.8 0.03 2 Ln (W) Stop NBL A 7.2 0.00 0 A 7.3 0.01 0 As volume increases on Lake Hazel Road, the unsignalized minor street movement of Discovery Park Collector will experience some delay. The Lake Hazel Road at S. Eagle Road Intersection will continue to degrade. Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 27 Table 15: Segment Level of Service Results - Full Build Conditions Functional No. Left-Turn Pk Hr Pk Dir Threshold No. Segment Class Lanes Treatment (Dir)* Vol LOS LOS • Lake Hazel Rd between Principal PM A Locust Grove Rd and Eagle Arterial 3 TWTL (WB) 782 770 880 E Rd Lake Hazel Rd between Principal PM B Eagle Rd and Cloverdale Arterial 5 TWTL (WB) 902 1680 1780 <D Rd C Eagle Rd between Lake Principal 2 None PM 488 600 690 <D Hazel Rd and Columbia Rd Arterial (SB) *Highest peak hour volume in one direction D.2. Build Conditions Mitigation The same recommendations identified in Section 13.4 for mitigating background volumes will work for the future case. Table 16 shows the results of mitigation. Table 16: Intersection Level of Service Results - Mitigation for Build Conditions MitigationAM PM ID Intersection • Discovery Park Widen Lake Overall A 1.9 - - A 1.5 - - 1 & Lake Hazel WBLTR A 8.7 0.30 2 A 9.5 0.09 6 Rd Hazel Rd NB C 16.3 0.30 24 C 19.3 0.27 22 Overall B 13.3 - - C 22.6 - - Roundabout, EB A 6.9 0.35 40 E 35.7 0.81 180 2 Lake Hazel Rd Widen Lake WB C 18.9 0.77 160 B 11.8 0.70 120 & Eagle Rd Hazel NB C 18.9 0.66 100 C 16.1 0.42 40 SB A 6.3 0.20 20 C 23.6 0.85 220 <<< 0R >>> Overall C 33.6 0.92 - C 34.8 0.96 - EBL E 59.8 0.84 242 D 39.7 0.11 115 EBTR B 17.3 0.55 272 C 30.1 0.66 572 Signal plus WBL C 22.8 0.04 14 D 39.2 0.11 105 2 Lake Hazel Rd left turn WBT B 19.1 0.64 336 C 26.9 0.87 532 & Eagle Rd lanes on all WBR B 15.8 0.43 44 B 16.1 0.05 44 approaches NBL C 24.6 0.04 23 D 40.1 0.05 24 NBTR E 62.4 0.93 425 D 35.3 0.69 148 SBL E 73.2 0.84 101 D 50.6 0.73 237 SBTR B 1 19.4 1 0.31 1 110 1 D 1 42.2 1 0.53 1 515 Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 28 Conclusions and Recommendations E.1. Capacity Analysis Conclusions An analysis of the v/c ratios, LOS, delay, and expected queuing results in a series of conclusions for each intersection. These are described in detail below. E.1.1. Lake Hazel Road at Discovery Park Collector The intersection will require a left turn lane in the westbound direction. This improvement is currently under construction and will be in place when traffic from Discovery Park Collector appears. E.1.2. Lake Hazel Road at S. Eagle Road The intersection will not be able to function as the current all-way stop control. Lake Hazel Road will be widened west of the intersection to three lanes with turn lanes and east of the intersection to five lanes with turn lanes. While a roundabout will work, as volume increases in the area,the intersection will need a traffic signal to maintain adequate levels of service. In addition, there should be a northbound left turn lane as well as two southbound left turn lanes. These improvements are needed to accommodate existing traffic. E.2. Driveway Analysis There are two access points to the proposed development. The charts from ACHD Guideline 7106 (Figures 6 and 7) are shown in Figures 13 and 14. None of the analyzed movements meet the requirements for a right turn or left turn lanes. Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 29 Figure 13. Right Turn Lane Analysis No-Build Build Int.1—Discovery Park& Int.1—Discovery Park& 20 Lake Hazel Rd Lake Hazel Rd t Major-RoadMajw-Rwa <=40 no( 45 mph kmm) <=40 mph( lonM) W 45 IN (70 kmm) (70 kmM) t00 '00 50 Add Rig -Tum \11 Add Rig -Tum(80 km Lan �km Lan F 1E E BD ` 80 55 mph 55 no £ 11A km�h) 8 (0(Ikm7h) • AM Peak • AM Peak 4o PM Peak 40 PM Peak zo 33 -�fi0 mp(too -.ko mpl(170 .-. 500 700 000 1100 1300 1500 1700 WCC 300 500 700 6CC _ 13CC 15, Major-Road Volune(one direeOcnG vet9h Major-Road Volume lone directionl.WO Major Rd Rt Turn Major Rd Rt Turn AM 524 7 AM 533 14 PM 653 22 PM 678 41 40 Int.3—S.Eagle Dr& Vantage Pointe Ln(E) tzo MajorJioad <=40 n (f 0 lamb) 45 mph (70 kmOh) tm 50 Add Rig -Tum (80 krri Lan i 8 1p0 km'h) • AM Peak 4o PM Peak • :a eo mp 75a 0 300 50o 700 goo 1100 1300 .. 1, Major-Road Volume(one direckn).wNh Major Rd Rt Turn AM 132 27 PM 488 75 Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-31 23036.00 30 Figure 14. Left Turn Lane Analysis 3 S.Eagle Dr&Vantage Pointe Ln(E) __"\_\__VL,o-Lane Road-60 kmh(40rrph) L 7QQ 0 v 5%left-turns in V, JLe1*1urn___] � 2 Vealment p not rvarranted. ' 0 M 200 300 400 300 SW 700 •AM2026 •PM2026 Advancinq voiume IV,),veiuh `the Advancing volume should include the left-turn, right-turn, and through movements on the subject approach *the Opposing volume should include only the right-turn and through movements on the approach across from the subject major-road approach * If the operating speed does not coincide with 40,50,or 60 MPH,then interpolation can be used as a more conservative approach,the operating speed can be rounded up to the nearest speed Left Turn Build Volumes 2026 Speed Advancing Opposing Node Intersection Approach Limit Peak Hour Volume Volume Volume Volume Warrant? 1111I3 S.F�gle Dr& NB 35 AM 344 132 2 1% M-, NO E.3. Parking Requirements All parking will be on site and will follow ACHD requirements. There will be no direct residential access to the collector roads. Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 31 APPENDIX Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-3123036.00 APPENDIX A: Site Plan Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-3123036.00 APPENDIX B: Traffic Counts Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-3123036.00 APPENDIX C: Scoping Document Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-3123036.00 D APPENDIX D: Highway Capacity Worksheets The following is the required setup for capacity analysis per ACHD guidelines. These were followed, as applicable, in the Synchro analysis. Variable Existing Analysis Future Year Analysis HCS Analysis Type' Operations HCS Report Type Full Report and Back of Queue Worksheets or Long Report HCM Analysis Duration 0.25 hours PHF Actual by approach 0.902 RTOR Actual count or 0 Existing percentage or 0 Unit Extension 3 sec Arrival Type HCM Exhibit 10-18 Start Up Time 2 sec Extension of Effective Green Time 2 sec Walkin Speed 4 ft/sec3 1 3.5 ft/seC3 Pedestrian Volume Actual count or 400 CBD or 50 non-CBD Pedestrian Travel Distance Distance from top of ramp to opposite curb Lane Utilization Factor HCM Exhibit 10-23 Phasing Existing Leading/Protected left turns Actuation Type Existing Fully actuated except Boise CBD Cycle Length Use Cycle Length from Table Base(Ideal)Saturation Flow Rate 1800 Lane Width Existing Existing Existin 4 % Heavy Vehicles Existing% %Grade Existing% Parking maneuvers per hour HCM Exhibit 10-20 Bus Stops per hour HCM Exhibit 10-21 Yellow Time 4 sec 40 mph and under; 5 sec over 40 mph Red Time 1 sec Min Vehicle Green Time 5 sec Min Pedestrian Green Time 5 sec Upstream filtering adjust factor HCM Exhibit 15-7 5 'The preferred software is the latest version of the HCS or Synchro. 2Use existing PHF if existing PHF is>0.90 and no capacity improvements are planned. 3Use walking speed of 3 ft/sec around certain land uses such as schools. 4Use ACHD Policy Manual if improvements will be completed by analysis year. 5Use value of 1.0 if nearest upstream signal is greater than 1/2 mile away. NV5 nv5.com Synchro Output - Existing Conditions Analysis Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 Synchro Output - Background Conditions Analysis Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-3123036.00 Synchro Output - Build Conditions Analysis Traffic Impact Study for Reveille Ridge Subdivision NY5 NV5-3123036.00 Synchro Output - Mitigation Conditions Analysis Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-3123036.00 E APPENDIX E: Crash Data Traffic Impact Study for Reveille Ridge Subdivision NV5 NV5-3123036.00