Added: Dec 3, 2008
From: rateredwinjose
Duration: 0:9
The primary emphasis of traffic control is on the safe and efficient flow of cars, buses, vans, and lorries over urban streets and highways. The means of promoting this can vary from simple improvement of local streets by installing traffic signs and road markings to constructing comprehensive motorway control systems. Such comprehensive systems use access-road meters to monitor and control motorway access; closed-circuit television surveillance to detect quickly any deterioration in traffic flow; and emergency services to provide aid in case of accident and injury.Other traffic-control techniques include the use of one-way streets, enforcement of traffic flow regulations, channelization (building traffic islands, turning lanes and so on), and the use of traffic signals.Traffic signs and road markings follow a uniform practice throughout the world and are designed to convey information with a minimum of words to avoid confusing drivers unfamiliar with the area and the language. Uniform pictorial signs and markings have been adopted throughout Europe and the United States. They include uniform sign formats and sizes, and uniform codes regulating traffic flow.
Channel: Entertainment
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