Practice Details
State Agency: California
Practice Provision: Measuring work zone performance
Description:
In California, they typically measure travel time (and hence, delay) through the work zone when the project conditions/traffic conditions warrant and problems are anticipated. This is done only occasionally for major projects using traffic teams. They limit delay to a maximum of 30 minutes above the typical travel time but usually strive for a maximum of 0-15 minutes of delay, except under special conditions.
California has used advanced warning information systems as pilot projects in a few locations on an experimental basis (traffic sensors sending information to a main terminal that disseminates messages to changeable message signs). They do not typically measure queue, but field crews watch for backups and notify the Resident Engineer and District Traffic Managers when queues develop. The decision is then made as to whether or not to make adjustments or to pick up the lane closure.
Contact:
Ms. Jacqui Yuke Ghezzi
Chief
1120 N. Street
MS 36
Sacramento, California 95864
Phone: (916) 651-9050
Fax: (916) 651-9053
Email: ghezzi@dot.ca.gov
