Work Zone Mobility and Safety Program
Photo collage: temporary lane closure, road marking installation, cone with mounted warning light, and drum separated work zones.
Office of Operations 21st Century Operations Using 21st Century Technologies

Best Practice

BEST PRACTICE:

A4−2: Work Zones Designed at the Posted Speed

DESCRIPTION:

In instances where traffic realignment is required through the work zone, the realignment (e.g., reversing curves and super elevations) is designed for the posted speed rather than the reduced work zone speed.

REASON(S) FOR ADOPTING:

Simply posting signs with a lower speed through a work zone, without any enforcement, often does not result in reduced speeds.

PRIMARY BENEFIT(S):

The biggest benefit is that safety is enhanced through the project.

MOST APPLICABLE LOCATION(S)/PROJECT(S):

Any type of work requiring the realignment of traffic. This practice is considered for every project. It is most effective for high−volume/high−speed locations.

STATE(S) WHERE USED:

Oregon

SOURCE/CONTACT(S):

Nick Fortey, FHWA Oregon Division Office
Phone: (503) 587−4721
E−mail: nick.fortey@fhwa.dot.gov

Office of Operations