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Freeway Performance MeasurementSystem (PeMs), PeMS 7.0

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  • Varaiya, Pravin

Abstract

PeMS 7.0 is the latest of eight task orders devoted to research, development, andmaintenance of the PeMS system (there was one mid-year task order, PeMS 6.5).PeMS collects, processes, stores, and makes available online data from nine Caltransdistricts (D3-8, 10-12). The data are obtained from 23,871 loops1, grouped into 9,306 vehicle detector stations (VDS). These loops cover 3,495 out of 30,572 directional-miles of interstate and state highways in California. We now describe the accomplishments under the nine tasks that constitute the PeMS 7.0 project.

Suggested Citation

  • Varaiya, Pravin, 2007. "Freeway Performance MeasurementSystem (PeMs), PeMS 7.0," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt6ht400ns, Institute of Transportation Studies, UC Berkeley.
    • Handle: RePEc:cdl:itsrrp:qt6ht400ns
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