Projects Professional Services

Traffic Data Collection for the State of Illinois

Statewide, Illinois

The Illinois Department of Transportation chose DLZ to perform their annual traffic data collection program. The program includes three consecutive contracts that, when grouped, cover five Districts across the state.

DLZ manages multiple field crews to conduct 24-hour roadway counts with road tubes, NC-300/NC-350 Hi-Stars, and Miovision cameras. It is operating in this space since 2014 and at more than 18,000 locations.

DLZ has written custom software to check the field data for errors and process the traffic data into IDOT’s needed GIS and database formats. DLZ, an ESRI certified solution provider, has implemented an ArcGIS-based workflow that has streamlined scheduling, tracking, and field data collection, reducing errors
and improving safety.