TERRA collects traffic conditions on the Illinois Toll System and arterial routes adjacent to the Illinois Toll Highways. Peak hour travel times, route alternatives, and route times are recorded and reported, providing a snapshot of travel conditions. These studies are known as speed and delay.

TERRA uses GPS units connected to laptops, ArcPad software, and a functioning vehicle. Data is collected and analyzed using Esri’s ArcGIS suite of software.

esri Silver Tier Partner