Draft US 29 Mobility & Reliability Study Technical Report July 2020
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Draft US 29 Mobility & Reliability Study Technical Report Table of Contents Table of Contents ........................................................................................................................................... i List of Tables ................................................................................................................................................. iii List of Figures ................................................................................................................................................ iii Appendices .................................................................................................................................................. iv Introduction.................................................................................................................................................... 1 Existing Conditions ........................................................................................................................................ 2 Study Area and Study Corridor ................................................................................................................. 2 Land Use ................................................................................................................................................... 2 Population, Jobs, and Income ................................................................................................................... 3 Corridor Travel Patterns ............................................................................................................................ 4 Previous Studies ........................................................................................................................................... 8 US 29 Bus Rapid Transit (BRT) County and State Studies .................................................................... 10 US 29 Related BRT Studies.................................................................................................................... 12 US 29 Related Traffic and Transit Studies.............................................................................................. 12 Countywide and Regional Transit Studies .............................................................................................. 13 Related Regional Studies........................................................................................................................ 15 Functional and Master Planning Documents .......................................................................................... 15 Existing Roadway Conditions and Traffic Operations ................................................................................. 19 Transit Conditions ....................................................................................................................................... 28 Existing FLASH Station Accessibility .......................................................................................................... 34 Station 1 – Silver Spring Transit Center .................................................................................................. 34 Station 2 – Fenton Street ........................................................................................................................ 36 Station 3 – University Boulevard ............................................................................................................. 38 Station 4 – Burnt Mills .............................................................................................................................Draft 40 Station 5 – Oak Leaf Drive ...................................................................................................................... 42 Station 6 – White Oak Transit Center ..................................................................................................... 44 Station 7 – Stewart Lane ......................................................................................................................... 46 Station 8 – Tech Road ............................................................................................................................ 48 Future Traffic Forecasts and Traffic Operations ......................................................................................... 50 Population, Households, and Employment ............................................................................................. 50 Travel Forecasting Methodology ............................................................................................................. 52 2025 No Action Analysis ......................................................................................................................... 55 Alternatives Development and Evaluation .............................................................................................. 61 Page i US 29 Mobility & Reliability Study Technical Report 2025 Median Bus Lane Corridor Alternative Evaluation ......................................................................... 69 2025 Managed Lane Analysis ................................................................................................................. 79 Comparison of Alternatives ..................................................................................................................... 88 Summary of Findings and Recommended Mobility Package ................................................................. 91 Draft Page ii US 29 Mobility & Reliability Study Technical Report List of Tables Table 1 2017 Daily Vehicle Trips To and From the US 29 Subarea……………………………………….…6 Table 2 2017 Average Weekday Vehicle Trips using US 29………………………………………………….6 Table 3 Summary of US 29 Studies and Plans……………………………………………………...………….7 Table 4 Signalized Intersection Level of Service Delay Ranges……………………….……………….…...22 Table 5 Unsignalized Intersection Level of Service Delay Ranges……………………………………….....22 Table 6 Existing Failing Intersections…………………………..……………………………………………….23 Table 7 Existing Failing Segments…………………………………………………………….................…….24 Table 8 VISSIM Modeled Travel Times……………..………………………………………………………….25 Table 9 VISSIM Modeled Person Throughput………………..…………………………………………….….26 Table 10 Existing Transit Operations along US 29.………………………………………………….………..30 Table 11 RideOn Ridership/………………………………….……………………………………………….….31 Table 12 WMATA Ridership……………………………………………………………………………………..33 Table 13 US 29 Corridor Land Use 2017-2040 by District………………………………………..………….50 Table 14 2025 No Action Failing Intersections…………………………..…………………………………….56 Table 15 2025 No Action Failing Segments……………………………………………………………...…….57 Table 16 2025 Median Bus Lane Failing Intersections………………………..……………………………...75 Table 17 2025 Median Bus Lane Failing Segments…..………………………………………………………76 Table 18 2025 Managed Lane Failing Intersections……………………………….………………………….83 Table 19 2025 Managed Lane Failing Intersections…………………….…………………………………….84 List of Figures Figure 1: BRT study area and Study Corridor……………………………………………………………………2 Figure 2: US 29 Corridor Existing Land Use…………………………………………………………..…………3 Figure 3 US 29 Travel Market Subareas……………..………………………………………….………………5 Figure 4 2017 Average Weekday Vehicle Trip O-Ds Using US29……………………………………………..7 Figure 5 2018 US 29 Traffic Volumes by Mode………………………………………………………………..19 Figure 6 Existing Travel Times by Mode from Tech Road to Georgia Avenue……………………………...20 Figure 7 Person throughput illustration………………………………………………………………………….21 Figure 8 Existing Conditions Level of Service………………………………………………………..………...27 Figure 9 Existing US 29 Corridor Transit Services…………………………………………………………….29 Figure 10 US 29 Corridor Land Use 2017 -2040 By District……………………………………….………….51 Figure 11 US 29 Subarea Change in DraftEmployment and Households, 2017-40……………………….……..52 Figure 12 Subarea Assignment Process (MWCOG Base Model)………………………………. …….…....54 Figure 13 2025 No Action Link and Intersection Level of Service – Vehicles……………………………....58 Figure 14 2025 No Action Link and Intersection Level of Service – BRT……………………………………59 Figure 15 2025 No-Action Modeled Travel Times Between MD 198 and Georgia Avenue…………….....60 Figure 16 Intersection Improvement Screening Matrix…………………………………………………………62 Figure 17 Previous study interchange design concept for US 29/ Greencastle Road……………………...63 Figure 18 Intersection / Interchange Improvement Concepts and Costs…………………………………….64 Figure 19 Transportation Systems Management and Operations Strategies…………………………….…67 Figure 20 Median Bus Lane Concept………………………………………………………….…………….…..72 Figure 21 Median Bus Lane Typical Sections…………………………………………………………………..73 Figure 22 2025 Median Bus Lane Link and Intersection Level of Service – Vehicles………………….…..77 Figure 23 2025 Median Bus Lane Link and Intersection Level of Service – BRT…….……………...……..78 Page iii US 29 Mobility & Reliability Study Technical Report Figure 24 2025 Median Bus Lane Travel Times Between MD 198 and Georgia Avenue……………..….79 Figure 25 Managed Bus Lane Typical Sections……………………………………………………...………..81 Figure 26 2025 Managed Lane Link and Intersection Level of Service – Vehicles……………….………..85 Figure 27 2025 Managed Lane Link and Intersection Level of Service – Vehicles………………………...86 Figure 28 2025 Managed Lane Travel Times Between MD 198 and Georgia Avenue…………………….87 Figure 29 Person Throughput Comparison……………………………………………………………………..88