2018 HOV Plan Addendum
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2018 HOV Plan Addendum 2018 Addendum SOUTHERN NEVADA HOV PLAN ADDENDUM DIRECT-ACCESS DROP RAMP REEVALUATION OCTOBER 2018 PREPARED FOR: PREPARED BY: CA GROUP, INC SOUTHERN NEVADA HOV PLAN ADDENDUM DIRECT-ACCESS DROP RAMP REEVALUATION PREPARED FOR: PREPARED BY: CA GROUP, INC OCTOBER 2018 SOUTHERN NEVADA HOV PLAN ADDENDUM DIRECT-ACCESS DROP RAMP REEVALUATION TABLE OF CONTENTS 1. INTRODUCTION .......................................................................................................... 1 1.1. BACKGROUND ...................................................................................................... 1 1.2. NEED FOR DIRECT-ACCESS DROP RAMP REEVALUATION ............................................... 1 2. HOV SYSTEM PLAN ..................................................................................................... 3 2.1. REEVALUATION FOR HOV DIRECT-ACCESS DROP RAMPS ................................................ 5 2.1.1. REEVALUATION CRITERIA ................................................................................................... 5 2.1.2. REEVALUATION FINDINGS .................................................................................................. 8 2.1.3. EVALUATION OF DIRECT-ACCESS DROP RAMPS ...................................................................... 10 2.1.4. RECONFIRMATION OF OTHER DIRECT-ACCESS DROP RAMPS AND FLYOVERS ................................ 15 2.2. NEAR-TERM HOV SYSTEM ....................................................................................... 19 2.3. LONG-TERM HOV SYSTEM ....................................................................................... 21 3. CONCEPTUAL DESIGN ................................................................................................. 23 3.1. GEOMETRIC DESIGN CRITERIA ................................................................................. 23 3.2. FEASIBILITY EVALUATION ........................................................................................ 23 3.3. DESIGN EXCEPTIONS ............................................................................................. 24 3.4. COST ESTIMATES .................................................................................................. 25 4. STAKEHOLDER ENGAGEMENT ....................................................................................... 25 5. REFERENCES ............................................................................................................. 25 LIST OF TABLES TABLE 1. Criteria Thresholds for Evaluating Direct-Access Drop Ramps ............................................................. 5 TABLE 2. Findings from the Reevaluation of Direct-Access Drop Ramps ............................................................ 9 TABLE 3. Planning Level Cost Estimates ..................................................................................................... 25 LIST OF FIGURES FIGURE 1. Reevaluation Corridor ............................................................................................................. 2 FIGURE 2. Year 2040 Forecast Volumes .................................................................................................... 4 FIGURE 3. Proposed Direct-Access Ramps along I-15 .................................................................................. 15 FIGURE 4. 5HFRQÀUPHG'LUHFW$FFHVV5DPSVDORQJ2WKHU)UHHZD\V................................................................ 18 FIGURE 5. 6KRUW7HUP+296\VWHPLQWKH6RXWKHUQ1HYDGD+293ODQ....................................................... 20 FIGURE 6. +29$GGHQGXP3URSRVHG/RQJ7HUP+296\VWHP ......................................................................... 22 SOUTHERN NEVADA HOV PLAN ADDENDUM DIRECT-ACCESS DROP RAMP REEVALUATION APPENDICES APPENDIX A. 7UDIÀF)RUHFDVWLQJ7HFKQLFDO0HPRUDQGXP APPENDIX A-1 . Methods and Assumptions Memorandum for the Southern Nevada HOV Plan Addendum Direct-Access Drop Ramp Reevaluation APPENDIX A-2 . SNTS Data Collection Plan HOV Reevaluation APPENDIX A-3 . HOV Addendum Forecasting Model Adjustments APPENDIX B. 'LUHFW$FFHVV'URS5DPS/RFDWLRQ3UHOLPLQDU\3ODQ6KHHWV APPENDIX C. Planning Level Cost Estimate Summaries APPENDIX D. 6XPPDU\RI6WDNHKROGHU(QJDJHPHQW SOUTHERN NEVADA HOV PLAN ADDENDUM DIRECT-ACCESS DROP RAMP REEVALUATION 1. INTRODUCTION 1.1. BACKGROUND The original Southern Nevada HOV Plan was completed in June 2007 (2007 HOV Plan). The plan determined the usefulness of implementing HOV facilities in the Las Vegas metropolitan area to alleviate expected future congestion on roads in the region (NDOT 2007). In July 2015, an update to the plan titled the Southern Nevada HOV Plan Update was completed (2015 Southern Nevada HOV Plan ). This update provided full HOV system recommendations that addressed mainline HOV extents, number of HOV lanes, system-to-system HOV connection locations, and HOV direct-access drop ramp locations (NDOT 2015). The purpose of this Southern Nevada HOV Plan Addendum—Direct-Access Drop Ramp Reevaluation (HOV Addendum) is to amend the 2015 Southern Nevada HOV Plan analysis and recommendations for high-occupancy vehicle (HOV) freeway direct-access drop ramp facilities in Southern Nevada (Las Vegas Valley or Valley). 1.2. NEED FOR DIRECT-ACCESS DROP RAMP REEVALUATION The intent of this HOV Addendum is to incorporate new information that has become available since the 2015 Southern Nevada HOV Plan was prepared. Development plans for the Interstate 15 (I-15) corridor have notably changed since 2015. A new National Football League stadium is under construction at the southwest quadrant of I-15 and Hacienda Avenue. Another new development is the planned extension of the monorail to Mandalay Bay near Hacienda Avenue. In addition, since 2015, the Regional Transportation Commission of Southern Nevada (RTCSNV) adopted a new long-range transportation plan, Access 2040. RTCSNV’s adoption of this new plan extends the planning horizon year for traffic forecasts from 2035 to 2040. In association with adopting this plan, RTCSNV updated the regional travel demand forecasting TransCAD macro-model. The HOV Addendum analysis uses this new model to develop traffic forecasts in 2017 and 2040. Technical documentation of the application of the model is contained in Appendix A of this HOV Addendum. This HOV Addendum reevaluates HOV direct-access ramp locations from the 2015 Southern Nevada HOV Plan in addition to a new location at I-515 and City Parkway. The intent of this analysis is to reevaluate direct-access ramp locations along the I-15 corridor, perform a new analysis at I-515 and City Parkway, and confirm forecasted traffic volumes at other proposed HOV direct-access ramp locations from the Proposed Long-Term HOV System of the 2015 Southern Nevada HOV Plan . Figure 1 illustrates the reevaluation corridor and Proposed Long-Term HOV System. Page 1 SOUTHERN NEVADA HOV PLAN ADDENDUM DIRECT-ACCESS DROP RAMP REEVALUATION Figure 1. Reevaluation Corridor Losee Clark County 215 Ann N Las Vegas Hwy Craig Cheyenne Rampart Decatur Jones Las Vegas Beltway Charleston Sahara Tropicana Las Vegas Expy Rainbow Russell MC Carran Intl Eastern Clark County 215 Windmill Blue Diamond Silverado St Rose Pkwy Legend Reevaluation Corridor Direct-Access Ramp 1 lane per direction HOV to HOV Flyover HOV Lanes Existing Park and Ride 2 lane per direction Planned Park and Ride HOV Lanes 02.5 5 Miles Source: 2015 Southern Nevada HOV Plan Page 2 SOUTHERN NEVADA HOV PLAN ADDENDUM DIRECT-ACCESS DROP RAMP REEVALUATION 2. HOV SYSTEM PLAN The 2015 Southern Nevada HOV Plan recommended two major timeframes for the HOV Plan for Southern Nevada. • Near-Term System: Represents the HOV system for the 2018–2025 timeframe. Project Neon’s design-build phase is planned to open in 2019 and will be the first project to implement elements of the proposed HOV system on I-15. • Long-Term System: Represents the HOV system between 2025 and the horizon year of 2040. This HOV Addendum assumes the Long-Term System for testing direct-access drop ramp locations using the RTCSNV 2040 travel demand model. Figure 2 shows the 2040 traffic forecast results from this model for mainline HOV and General-Purpose (GP) lane volumes at representative locations along the future HOV corridor locations. Page 3 SOUTHERN NEVADA HOV PLAN ADDENDUM DIRECT-ACCESS DROP RAMP REEVALUATION Figure 2. Year 2040 Forecast Volumes Volume (veh/hour) Volume (veh/hour) Volume (veh/hour) Lane Lane Lane AM Peak PM Peak AM Peak PM Peak AM Peak PM Peak Northbound/Westbound Northbound/Westbound Northbound/Westbound GP 3,500 7,400 GP 1,700 4,000 GP 8,500 9,400 HOV 900 1,900 HOV 400 1,000 HOV 2,800 3,100 Clark County 215 Southbound/Eastbound Southbound/Eastbound Southbound/Eastbound Losee GP 8,200 4,900 GP 4,100 2,800 GP 9,600 8,500 N Las Vegas Hwy HOV 2,100 1,200 HOV 1,000 700 HOV 3,200 2,800 Volume (veh/hour) Ann Volume (veh/hour) Lane Lane AM Peak PM Peak AM Peak PM Peak Westbound Northbound/Westbound Craig GP 4,600 5,400 GP 7,500 7,200 HOV 1,100 1,400 HOV 1,300 1,300 Eastbound Cheyenne Southbound/Eastbound Rampart GP 4,400 4,200 GP 6,200 6,500 HOV 1,900 1,800 HOV 1,100 1,100 Decatur Jones Las Vegas Beltway Volume (veh/hour) Lane Charleston AM Peak PM Peak Northbound Las Vegas Expy GP 7,000 7,100 HOV 3,000 3,100 Southbound GP 10,400 10,100 Volume (veh/hour) HOV 2,600 2,500 Tropicana Lane AM Peak PM Peak Volume (veh/hour) MC Carran Intl Northbound Lane Rainbow Russell AM Peak PM Peak GP 7,900 7,600 Northbound HOV 3,400 3,200 GP 8,300 8,300 Clark County 215 Southbound HOV 2,800 2,800 GP