Evaluation of channelizing devices for work zones: Type II: barricades and chevron panels.

The objectives of this research were: 1) to evaluate the 4-in. (10.2-cm) and 6-in. (15.2-cm) wide alternating diagonal stripes on barricade rails less than 3 ft. (0.92-m) long, and 2) to select the most effective chevron panel. A secondary objective was to investigate minimum sight distance requirements for work zone lane closures.