Georgia Finds Better Alternative for Directing Traffic Through Taper LanesAbstract:
Highway maintenance often forces the Georgia Department of Transportation (DOT) to temporarily close lanes of traffic. In these situations, the DOT usually deploys a series of barrels to show drivers that a lane is closed ahead and that they must move into a different lane to travel through the work area. But the barrels are bulky and do not always provide clear instructions to motorists as they pass through a taper area into a temporary travel lane.
Georgia DOT evaluated the direction indicator barricade as a replacement for the barrels. This device, developed under the Strategic Highway Research Program (SHRP), is a conventional barricade with a 60- by 30-cm (24- by 12- in) horizontal arrow panel and a 60- by 20-cm (24- by 8-in) chevron panel.
When lanes are closed to traffic, a series of direction indicator barricades are placed along the roadside to direct motorists to merge into the taper lane and then into a temporary travel lane. The panels can be reversed to allow the same device to be used in outside or inside lanes.