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CIA

Slope

Slope

A slope or grade of a road refers to the tangent of the angle of the road to the horizontal. It is a special case of the slope, where zero indic…

Priority vehicle

Priority vehicle

A priority vehicle is any vehicle that is designated and authorized to respond to an emergency in a life-threatening situation. These vehicles a…

Pedestrian

Pedestrian

A pedestrian is a person travelling on foot, whether walking or running. In modern times, the term usually refers to someone walking on a road o…

Loose chippings

Loose chippings

Loose chippings are loose gravel or stone fragments on a road surface and form a hazard to vehicles using that road. It may come from the road's…

Emergency exit

Emergency exit

An emergency exit in a structure is a special exit for emergencies such as a fire: the combined use of regular and special exits allows for fast…

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