Interface: IDOT District 1 Traffic Systems Center Roadside Equipment To Vehicles

broadcast advisories   (Existing)  

General broadcast advisories that are provided over wide-area wireless communications direct to the vehicle radio. These analog advisory messages may provide similar content to ITS broadcast information flows, but include no digital data component. Existing Highway-Advisory Radio (HAR) advisory messages are a prime example of this flow.

 

request tag data   (Planned)  

Request for tag information including credit identity, stored value card cash, etc.

 

vehicle probe data   (Planned)  

Vehicle probe data indicating identity, route segment identity, link time and location.

 

vehicle signage data   (Existing)  

In-vehicle signage data generated by the roadway infrastructure indicating either road conditions, street names, or special information.