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Interstate 24 SMART Corridor

Davidson and Rutherford Counties


Transportation projects are developed in four phases: Planning and Environmental, Design, Right-of-Way (ROW), and Construction. ROW acquisition is not needed for this project. Construction is expected to occur in phases.

The following is a reflection of various aspects of the project phases as they have occurred or will occur for the I-24 SMART Corridor.

Phase 1: Short-Term Deployments  
Design Completed Summer 2018
Construction Estimated Completion December 2020
Phase 2: Intermediate Deployments  
Design Completed Summer 2019
Construction Estimated Completion July 2022
Phase 3: Long-Term Deployments  
Design Completion Forecasted for Summer 2021
Construction Completion Forecasted for Winter 2023

* All forecasted dates are subject to change.

Details about each planned deployment are outlined below.

Phase 1: Short-Term Deployments

  • Physical Improvements
    • Selective Gap Closure of Communications Network
    • Ramp Acceleration/Deceleration Lane Extensions
    • Emergency Refuge Areas/Pull-Offs
    • Roadside Dynamic Message Signs (DMS) along I-24
  • Technological Improvements
    • Dedicated Short-Range Communication (DSRC) Deployment
    • Arterial Signal System Upgrades
    • Traffic Management Software Upgrades
  • Operational Improvements
    • Incentivize Towing Operations on I-24 Corridor
    • Improve Operation Coordination for Incident Management
    • Update TDOT Transportation Management Center (TMC) Procedures
    • Signal Timing Optimization of Select Roadways

Phase 2: Intermediate Deployments

  • Physical Improvements
    • Completion of Communications Network
    • Expansion of fiber along I-24
    • Install overhead DMS for Active Traffic Management System
    • Roadside DMS along I-24 and SR 1
  • Technological Improvements
    • Adaptive Signal Control Technology (ASCT) Assessment and Deployment

Phase 3: Long-Term Deployments

  • Physical Improvements
    • Ramp Metering
    • Part-time Shoulder Usage 
  • Technological Improvements
    • Implement Automated Decision Support Systems for Active Traffic Management
  • Operational Improvements
    • Integrate Staffing/Maintenance/Operations Plan
    • Full Center-to-Center Communications (TDOT to Local Stakeholders)