(road transport) A summit on a road which prevents the driver of a vehicle from having line of sight of beyond it; commonly considered a potential hazard when overtaking on a bidirectional road.
(US, Canada) A junction of two highways, one crossing over the other, having a series of exit and entrance ramps, arranged in the form of a four-leaf clover, such that traffic may proceed from either highway in all directions.
A highway or freeway road which connects to another highway or freeway. It can be part of an interchange or a longer roadway such as the 1.5 mile (2.5 kilometer) U.S. Route 24 Connector.
(UK, Australia, New Zealand, road transport) A series of triangular road surface markings painted on each side of a traffic lane, used for traffic calming or to alert drivers to a speed limit.
(of a junction) Having routes that meet cross each other on different levels, avoiding the conflicts that occur with a flat junction at only one level.
On a smaller scale: the situation in which cars enter a signal-controlled intersection too late during the green light cycle, and are unable to clear the intersection (due to congestion in the next block) when the light turns red, thus blocking the cross traffic when it's their turn to go. Repeated at enough intersections, this phenomenon can lead to citywide gridlock.
(Ireland, Britain, travel) Travel by ferry from one country, via another country by road, then by another ferry crossing to a third country. An example is from Ireland by ferry to the UK, by road to the opposite coast, then ferry to France.
(US, road transport) Triangular area of road surface adjacent to the gore at a fork or merge, set off by painted lines and optionally covered in chevron markings.
One of a series of doors at a train or subway station, at the edge of a platform, that prevent access beyond the platform when there is no train to be boarded
An intersection traffic control island which splits the flow of traffic in two, one to turn using the slip lanes, and one to go through or cross traffic lanes.
A roadside location, manned by police or similar officials, where a device that emits a radar beam is used to monitor the speeds of motor vehicles in order to apprehend motorists in violation of the speed limit.
(chiefly Britain) A system of traffic management, marked by red lines along the edge of the road, where parking, loading or picking up passengers is restricted.
(California) An area of a street where the curb has been painted red, indicating that stopping, standing or parking is prohibited at that spot (except, in some places, for buses).
An interchange between a highway (free-flowing) and a street (with traffic signals) which allows traffic to proceed from either direction on each road to either direction on the other, and which is governed by only one set of traffic signals.
Abbreviation of single-point urban interchange. [An interchange between a highway (free-flowing) and a street (with traffic signals) which allows traffic to proceed from either direction on each road to either direction on the other, and which is governed by only one set of traffic signals.]
A kind of traffic interchange involving at least one loop ramp connecting traffic either entering or leaving the terminating expressway with the far lanes of the continuous highway.
(science fiction) A high-speed elevator, corridor, or similar transit route.
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