Reduction of Motorists’ Delay and Crash Potential Upstream of Highway Work Zones

Seven tasks were completed during this two year project for the Texas Department of Transportation.

  1. Evaluate innovative lane control measures such as both fixed cycle signals and continuous merge signals
  2. Collect and analyze observational data at workzones
  3. Use mesoscopic dynamic traffic assignment modeling to estimate the diversion rate
  4. Input the vehicle flow output from the mesoscopic model into a microscopic model to evaluate driver behavior
  5. Input the vehicle trajectories from the microscopic model into a safety analysis model for predicting conflict rates
  6. Develop a decision tree to guide TxDOT towards the appropriate lane control measure in each potential scenario
  7. Present the results in a pilot training workshop and final report