The Chicago area expressway network features the world's first and largest freeway traffic surveillance and control system. From pioneer experiments with detector/telemetry/computer monitoring of traffic flow, and the development of entrance ramp metering, the real-time system now covers 105 miles (169 km), with 1600 detector locations and 54 controlled ramps. This report describes the surveillance and control system and its basic components, documents the implementation and operational experience, evaluates ramp control effectiveness, assesses costs and benefits, and relates the use of electronic traffic aids to overall urban freeway traffic management efforts. The Chicago area case study illustrates successful progress towards reducing freeway congestion, improving flows, increasing safety, expediting emergency responses, and providing motorist aid and information.
Chicago Area Expressway Surveillance and Control: Final Report
1979
180 pages
Report
No indication
English
Transportation & Traffic Planning , Road Transportation , Limited access highways , Traffic engineering , Freeways , Ramps , Vehicular traffic control , Surveillance , Detectors , Real time operations , Effectiveness , Telemetry , Evaluation , Systems engineering , Benefit cost analysis , Traffic safety , Transportation management , Systems management , Traffic surveillance , Ramp metering , Electronic traffic control , Traffic management , Traffic flow , Traffic incident detection , Ramp control , On line systems , Emergency road services , Driver aid systems
Chicago expressway surveillance research project
Engineering Index Backfile | 1962
|Real time computerized expressway traffic control in Chicago area
Engineering Index Backfile | 1965
|Chicago plans an eight-lane expressway
Engineering Index Backfile | 1945