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Operational and Technological Improvements

Interactive Diagram

The graphic below shows highways and roadways depicting work zone management with cones and construction signs; traveler information with a dynamic message sign and 511 travel information service logo sign; incident management with a tow-truck and ambulance on the highway shoulder; and bottleneck reduction with three lanes of congested highway traffic. Select any of the five operational and technological improvements in the graphic for more information.

Graphic showing highways and roadways depicting work zone management with cones and construction signs; traveler information with a dynamic message sign and 511 travel information service logo sign; incident management with a tow-truck and ambulance on the highway shoulder; and bottleneck reduction with three lanes of congested highway traffic. Courtesy of US Government Accountability Office, 2007 Work Zone Management Incident Management Traveler Information Bottleneck Reduction Traffic Signal Timing

Select any of the five operational and technological improvements in the graphic above for more information.
Courtesy of US Government Accountability Office, 2007