Civil Engineering ⇒ Topic : Traffic signals
|Traffic signals are the control devices which
alternately direct the traffic to stop and proceed at
intersections. The signals are classified into
following three types :-|
1. The traffic control signals : These are provided with three colored light glows facing each direction of traffic flow viz, red, yellow amber and green. It has three subtypes :
1. Fixed time signals
2. Traffic actuated signals
3. Manually operated signals2. Pedestrian signals : When the vehicular traffic remains stopped by red or stop signal on the traffic signals of the road intersection, these signals give the right of way to pedestrians to cross a road during the walk period.
3. Flashing beacons : These signals are used to warn the traffic. Flashing yellow signals are used to direct the drivers of the vehicular traffic to proceed with caution.
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