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These have been devised to direct and guide the flow of traffic. They are mounted on poles at the side of the road, or on overhead structures, or may be painted on the surface of the road.
Road Signs
These are divided into three categories, each set having its own shape and colour coding.
Temporary signs differ from permanent signs in that they have a yellow background to attract attention.
I. Regulatory Signs
- Are used to regulate, control or restrict the actions of road users.
- They set speed limits and determine right of way in the interest of orderly traffic flow.
- They also indicate changes in road layout or design, whether permanent or temporary.
- There are seven sets of regulatory signs.
1. Control signs
Control the STOP, YIELD or ENTRY actions of drivers.
Indicate DIRECTION of travel or PEDESTRIAN PRIORITY.
Are white on a red background.
2. Command signs
Indicate actions that MUST BE TAKEN or the CLASS of road user that must act.
Are round signs with white on a blue background.
3. Prohibition signs
Indicate MAXIMUM LIMITS that must not be exceeded.
They RESTRICT certain ACTIONS or CLASSES of vehicle.
Are round signs with black on a white background having a red border. Except for LIMIT signs, they usually have a red line across to indicate 'Not Allowed'.
4. Reservation signs
Indicate that a road, part of a road or parking area is reserved for only a certain CLASS of vehicle.
Are rectangular in shape with white on a blue background.
5. Comprehensive signs
Indicate that a road or part of it is subject to comprehensive REGULATIONS and RESTRICTIONS.
Are rectangular with white on a blue background having a red border. Where the rules no longer apply, the sign has a red cross through it.
6. Exclusive secondary signs
Used in conjunction with regulatory signs.
LIMIT the accompanying regulatory sign to the specific CONDITIONS or TIMES.
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