Siren
A siren is a sound signal that priority vehicles use to warn other road users that they have to pass.
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School-area
A school environment is a place near a school. Pay extra attention to children playing.
Rush-hour lane
A rush-hour lane is an extra lane on a lane of a motorway. The rush-hour lane is often at the expense of the emergency lane. The rush-hour lane …
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…
Roundabout
A roundabout is a kind of circular intersection in which the traffic continuously drives in one direction around a central island. The drivers a…
