Spare tire
A spare tire (also called spare wheel) is an additional wheel with a tire for a motor vehicle. It is intended as a replacement for a car tire wh…
Long
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…
Rockfall
Rockfall refers to quantities of rock falling freely from a cliff face. A rockfall is a fragment of rock detached by sliding or falling, that fa…
Roadrage
Roadrage is aggressive or angry behavior exhibited by motorists. These behaviors include rude and offensive gestures, verbal insults, physical t…
Parking disc
Disc parking is a system of allowing time-restricted free parking through display of a parking disc or clock disc showing the time at which the …
