The detection and identification of the chevrons and slanted patterns was, in general, poorer than that of the horizontal and vertical designs. However ... This is inferred from the absence of a definition in the standard manual, the Manual on Uniform Traffic Control Devices (MUTCD) (3). The MUTCD ... When the area is very small or very large, one- rail or two- rail displays interchange reasonably well.
|Title||:||Work Zone Traffic Control|