ISTHA Automatic Number Plate Recognition System

The Automatic Number Plate Recognition (ANPR) system supplies front and rear images of license plates that allow the Illinois State Highway Authority (ISTHA) to collect tolls and identify vehicles engaged in violations. This system is critical for ISTHA’s revenue recovery.


JWI provided construction management services to replace over 900 system cameras, camera housings, and hardware needed to mount the camera housings across the Illinois Tollway system. We also installed the plate-recognition software used for data collection.

JWI was responsible for master scheduling, meetings, general coordination, CADD design work, site surveys and layouts, testing, and on-site inspection. We also contributed to the calibration and testing of new equipment, as well as on-site troubleshooting.


  • Owner:  Illinois State Toll Highway Authority, Contract #I-13-0313
  • Client: Adesta, A G4S Company
  • Service:  Construction Management
  • Value:  $19,000,000

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