This report presents a summary of general measures of facility usage (e.g., how many vehicles are transported on the freeway network) and facility performance (e.g., how fast they are traveling , where and how often congestion occurs). These measures are meant to be succinct, yet provide sufficient detail to convey a sense of the complexity of highway performance variations as a function of location, time, and other conditions. In addition this analysis is designed to be repeatable, i.e., the report's contents can be updated periodically with a consistent set of measures so that trends can be monitored over time.
Washington State Transportation Center (TRAC)
Freeways, High occupancy vehicle lanes, Highway traffic control, Monitoring, Performance, Traffic congestion, Traffic speed, Traffic surveillance, Traffic volume, Urban areas.