See Speed Limit Reductions in Work Zones on the web site below for guidance from Washington State DOT. … [Read more...] about Work zone speed limit
Washington
Give ’em a Brake
The men and women who maintain and improve Washington's more than 7,000 miles of state highway ask you to slow down and pay extra attention to road construction signs. The Give 'Em A Brake" program … [Read more...] about Give ’em a Brake
Vehicle warning lights
The requirements are included in WSDOT Vehicle and Equipment Warning Light Systems Manual. … [Read more...] about Vehicle warning lights
Prevention of work zone related injuries and fatalities
The Washington DOT Work Zone Safety Task Force is dedicated to the prevention of work zone related injuries and fatalities. Established in August 1993, the task force was created to examine work zone … [Read more...] about Prevention of work zone related injuries and fatalities
Flagger training and certification requirements
From Washington State Department of Transportation Standard Specifications for Road, Bridge, and Municipal Construction: "1-10.3(1)A Flaggers Flaggers shall be posted where shown on traffic control … [Read more...] about Flagger training and certification requirements
Work zone impact thresholds
WSDOT does not use performance specifications. Time of day restrictions or night work is specified based on hourly traffic volumes. Generally WSDOT uses analysis programs such as QUEWZ98 to calculate … [Read more...] about Work zone impact thresholds