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Jersey barriers on the road. A Jersey barrier, Jersey wall, or Jersey bump is a modular concrete or plastic barrier employed to separate lanes of traffic.It is designed to minimize vehicle damage in cases of incidental contact while still preventing vehicle crossovers resulting in a likely head-on collision.
Typical left-hand motorway road layout in Ireland and South Africa Divided median strip on a boulevard in Huizhou, China. A median strip, central reservation, roadway median, or traffic median is the reserved area that separates opposing lanes of traffic on divided roadways such as divided highways, dual carriageways, freeways, and motorways.
Traffic barrier with a pedestrian guardrail behind it. Traffic barriers (known in North America as guardrails or guard rails, [1] in Britain as crash barriers, [2] and in auto racing as Armco barriers [3]) keep vehicles within their roadway and prevent them from colliding with dangerous obstacles such as boulders, sign supports, trees, bridge abutments, buildings, walls, and large storm drains ...
The F-shape barrier is a concrete crash barrier, originally designed to divide lanes of traffic on a highway.It is a modification of the widely used Jersey barrier design, and is generally considered safer.
Road Zipper machine at the Golden Gate Bridge, San Francisco, California. A barrier transfer machine, also known as zipper machine or road zipper, is a type of heavy vehicle that is used to transfer concrete lane dividers, such as Jersey barriers, in order to relieve traffic congestion during rush hours. Many other cities use them temporarily ...
Traffic cones, also called pylons, witches' hats, [1] [2] road cones, highway cones, safety cones, caution cones, channelizing devices, [3] construction cones, roadworks cones, or just cones, are usually cone-shaped markers that are placed on roads or footpaths to temporarily redirect traffic in a safe manner.
Typical dash marks in the middle of the lane after dowel bar retrofit roadwork [5]. Sometimes the result of roadwork may leave visible marks on the pavements. An example is the dowel bar retrofit process to reinforce concrete slabs in order to extend the life of older concrete pavements.
Traffic islands can be used to reduce the speed of cars driving through, [1] or to provide a central refuge to pedestrians crossing the road. When traffic islands are longer, they are instead called traffic medians, a strip in the middle of a road, serving the divider function over a much longer distance. [2] Refuge island in Lisbon, Portugal