Multimodal Solutions December 2020 I-40/81 Multimodal Corridor Study Table of Contents 1. Introduction ............................................................................................................................................................................ 3 Purpose of This Memo .........................................................................................................................................3 Expanding the Universe of Solutions ...................................................................................................................4 2. Highway Capacity/Expansion Strategies ................................................................................................................. 6 New General-Purpose Lanes ................................................................................................................................6 Auxiliary Lanes .....................................................................................................................................................9 Interchange Type .................................................................................................................................................9 Ramp/Terminal Improvements ......................................................................................................................... 10 C-D Roadway ..................................................................................................................................................... 12 Truck Climbing Lanes ........................................................................................................................................ 13 Bypass Analysis ................................................................................................................................................. 14 Parallel Arterial Diversion ............................................................................................................................ 14 3. Transportation System Management and Operations Strategies ............................................................. 20 Managed Lanes ................................................................................................................................................. 21 High Occupancy Vehicle Lanes ..................................................................................................................... 21 High Occupancy Toll Lanes ........................................................................................................................... 22 Express Lanes ............................................................................................................................................... 23 Separate Truck Lanes ................................................................................................................................... 24 Separate Local Lanes and Through Lanes .................................................................................................... 24 Information Management ................................................................................................................................ 25 Traveler Information Systems (External to Vehicle) .................................................................................... 25 Traveler Information Systems (Internal to Vehicle) ..................................................................................... 26 Incident Management Systems ................................................................................................................... 28 HELP Routes ................................................................................................................................................. 29 SmartWay Expansion ................................................................................................................................... 30 Freeway Management/Active Traffic Demand Strategies ................................................................................ 31 Hard Shoulder Running – Buses ................................................................................................................... 32 Hard Shoulder Running - General Purpose (GP) Traffic ............................................................................... 33 Queue Warning ............................................................................................................................................ 34 Variable Speed Limits ................................................................................................................................... 34 Dynamic Lane Assignment/Control.............................................................................................................. 34 Integrated Corridor Management ............................................................................................................... 35 Ramp Metering ............................................................................................................................................ 36 Other Technology Solutions .............................................................................................................................. 40 Road Weather Information System (RWIS) ................................................................................................. 40 Electric Vehicle Charging Stations ................................................................................................................ 41 4. Freight-Related Strategies ............................................................................................................................................ 48 Truck Parking ..................................................................................................................................................... 48 Electric Truck Charging Stations ........................................................................................................................ 50 Alternative Truck Routing ................................................................................................................................. 50 Weigh-in-Motion ............................................................................................................................................... 51 Multimodal Freight Solutions ........................................................................................................................... 52 Technical Memorandum Table of Contents | Page i Multimodal Solutions I-40/81 Multimodal Corridor Study 5. Safety ....................................................................................................................................................................................... 54 Potential Safety Improvements ........................................................................................................................ 55 Detour Routes ................................................................................................................................................... 57 Crossovers ......................................................................................................................................................... 58 Runaway Truck Ramps ...................................................................................................................................... 59 6. Transit ...................................................................................................................................................................................... 65 Infrastructure Improvements ........................................................................................................................... 65 Policy ................................................................................................................................................................. 67 Managed Lanes ............................................................................................................................................ 67 Bus on Shoulder ........................................................................................................................................... 67 Partnerships ...................................................................................................................................................... 67 Park & Ride Facilities for Regional Transit Service ....................................................................................... 68 Operation of Commuter Express/Regional Transit Service ......................................................................... 70 Improvements to Intercity Transit ............................................................................................................... 71 7. New Interchange Access ................................................................................................................................................ 74 Technical Memorandum Table of Contents | Page ii Multimodal Solutions I-40/81 Multimodal Corridor Study Tables Table 1. Potential Additions to Physical Capacity ......................................................................................................6 Table 2. Potential Interchange Improvements ........................................................................................................ 10 Table 3. Potential Ramp/Terminal Improvements