Tunnel
A tunnel is an underground passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each e…
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Traffic conductor
A device installed on the carriageway and intended to channel vehicles traffic. The traffic conductor consists of a road marking, either from an…
Tires
Worn or bald tires can increase your stopping distance and make turning more difficult when the road is wet. Unbalanced tires and low-pressure c…
Slippery road
Road slipperiness is a condition of low skid resistance due to insufficient road friction. It is a result of snow, ice, water, loose material an…
Runaway truck ramp
A runaway truck ramp is a traffic device that enables vehicles which are having braking problems to safely stop. It is typically a long, sand- o…
