TYPICAL HIGHWAY ADVISORY RADIO OPERATION:

Messages broadcast from the various transmitters may be identical or individually customized for the location (providing sufficient distance between transmitters). The messages may be a combination of the following elements:

  • Voice-synthesized traffic conditions updated from the 511 system, including crash and road closure information
  • A short, pre-recorded work zone/traffic safety message
  • A short pre-recorded description of the entire project scope, schedule or other project trivia
  • Voice synthesized travel delay information as calculated from various directions and routes

ANTICIPATED SYSTEM EFFECTS:

When properly designed and deployed for a specific project, a TI (HAR) System should inform drivers what the estimated delay time is between two points along the roadway. The system will give drivers information which will allow them to decide whether to change routes, give them the opportunity to notify others of their estimated arrival time, and provide drivers with sufficient information to calm tempers when they arrive at the cause of the delay.

ADDITIONAL RESOURCES:

Deployment criteria and anticipated effects are suggestions that were provided by the MnDOT 2007/2008 report “Minnesota Intelligent Work Zone Toolbox.”