Effectiveness of Implemented HOV Lane System

by Ron Klusza, California Dep of Transportation, Los Angeles, United States,

Document Type: Proceeding Paper

Part of: Transportation Planning and Air Quality


Individual carpool lanes have proven their worth on a case by case basis. Now, in California and across the country, systems of HOV lanes are being planned for urban areas dealing with congestion and air quality. One of the first systems to be constructed and opened to traffic includes the 55 and 405 freeways in Orange County. A set of mainline occupancy counts was created in 1980 to monitor the AM inbound occupancy rate of the Orange County freeway system. The set consisted of a northbound and southbound count on Route 5, a northbound and southbound count on Route 405 and one south bound count on Route 55. Overall data have shown that the total number of carpools inbound to Santa Ana was level or slightly decreasing from 1980 thru 1985. With the opening of the Route 55 carpool lanes, the total AM commute carpools have increased form 7000 to over 10,000.

Subject Headings: Car pools | High occupancy vehicles | Highways and roads | Air quality | Urban development | Air traffic control | Aircraft and spacecraft | Control systems | California | United States

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