Freeway Performance Measurement System(PeMS), PeMS 6.5

Pravin Varaiya

Institute of Transportation Studies, Research Reports, Working Papers, Proceedings from Institute of Transportation Studies, UC Berkeley

Abstract: PeMS 6.5 is the latest of seven task orders devoted to research, development, andmaintenance of the PeMS system. While most PeMS research grants coincide with fiscal and academic years (July-June), this project started mid-year in response to a number of feature and maintenance requests (i.e. it was too late for Pe MS 6 and too soon for PeMS 7). PeMS collects, processes, stores, and makes available online data from nine Caltrans districts (03-8, 10-12). The data are obtained from 23,871 loops 1, 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 six tasks that constitute the PeMS 6.5 project.

Keywords: Engineering (search for similar items in EconPapers)
Date: 2006-12-09
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