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Traffic cones were invented by Charles D. Scanlon, an American who, while working as a painter for the Street Painting Department of the City of Los Angeles, was unimpressed with the traditional wooden tripods and barriers used to mark roads which were damaged or undergoing repainting.
A traffic barricade [1] is a type of barricade used to control the flow of traffic or block access to an area, generally for safety purposes. Traditionally made of wood, or wood and steel, many now have structural members made wholly of plastic or composite materials , and may be fitted with flashing lights.
Barricades are channelizing devices used to redirect traffic on high-speed roads and expressways. There are different types of barricades depending on its size, design and applications. Barricades may be a fixed or portable traffic control device. Barricades are also used to close roads and/or sidewalks.
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 barricades in question –– portable steel structures that can either lie flat or be raised depending on traffic –– seemed to stand out in the memories of several witnesses to the attack.
Barricade (from the French barrique - 'barrel') is any object or structure that creates a barrier or obstacle to control, block passage or force the flow of traffic in the desired direction. Adopted as a military term, a barricade denotes any improvised field fortification , such as on city streets during urban warfare .
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