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High-tension cable consists of three or four pre-stretched cables supported by weak posts. Currently, all high-tension systems are proprietary, that is, marketed under exclusive right of a specific manufacturer. During installation, the cables are placed on the posts, and then tightened to a specific tension according to temperature. The ...
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 posts' primary purpose is to maintain the height of the guardrail during the initial stages of post deflection. [26] Maintaining guardrail height also reduces the potential for a vehicle to vault over the guardrail upon initial impact. The posts also play a role in the amount of resistance and deflection a guardrail may experience during ...
The ET-Plus Guardrail system is a guardrail end terminal system manufactured by Trinity Highway Products, based in Dallas, Texas. The ET-Plus was designed at the Texas A&M Transportation Institute and built by Trinity. The end terminal cap absorbs the impact of a crash. The wooden posts break and the guardrail collapses. [3]
Guard rails at Diêu Trì railway station, Vietnam This curved track in Myanmar, near Pekon, includes a guard rail on the inside rail of the curve. In rail transport, guard rails or check rails are rails used in the construction of the track, placed parallel to regular running rail to keep the wheels of rolling stock in alignment to prevent derailment.
There is no legal distinction between a guide rail and a guard rail. According to the US Federal Highway Administration, the terms guardrail and guiderail are synonymous. [5] Several types of roadway guide rail exist; all are engineered to guide vehicular traffic on roads or bridges. Such systems include W-beam, box beam, cable, and concrete ...
For 36” posts or 42" posts, 4 feet of spacing (center to center) is recommended to minimize deflection between the cables when pushing a 4" ball in between two cables. To accommodate such standards, railing projects may incorporate 3 ½" or less of spacing between cables taking into account the cable deflection caused by the posts spacing.
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.
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