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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.
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. [1] A parametric study, one that systematically varies the parameters, was done through computer simulations of barrier profiles labeled A ...
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 ...
Concrete median barrier on the N11 road near Dublin, Ireland. An August 1993 study by the US Federal Highway Administration quantified the correlation between median width and the reduction of both head-on accidents and severe injuries. The study found that medians without barriers should be constructed more than 30 feet (9.1 m) wide in order ...
Median width: The median should have a width of least 50 feet (15 m), and preferably 60 feet (18 m), in rural areas, and 10 feet (3.0 m), plus a barrier, in urban or mountainous areas. Recovery areas : There should be no fixed objects in the clear zone , the width of which should be determined by the design speed in accordance with the current ...
Concrete barrier may refer to: Alaska Barrier; Bremer barrier; Traffic barrier; Concrete step barrier; Constant-slope barrier; F-Shape barrier; Jersey barrier
See Jersey barrier. Open road tolling A form of electronic toll collection where tolls are collected at highway speeds without the need for tollbooths. Open toll system. See barrier toll system. Optional route. See alternate route. Orbital. See ring road. Overpass A bridge, road, railway or similar structure that crosses over another road or ...
Damage to Bremer wall concrete barriers in Afghanistan, 2012. During the Iraq war, US forces found concrete to be their most effective weapon to reduce violence and protect the local population from sectarian violence while impeding the movement of insurgents. At an average cost of $600 per wall in the mid-2000s, billions of dollars were spent ...