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Traffic cones are usually used to divert traffic.
The Traffic cone on the right is used in the United Kingdom to indicate that no parking is allowed.
Traffic cones, also called toddlers, road cones, safety cones, construction cones, pylons, or Witches\' Hats, are cone-shaped markers, generally made out of plastic or rubber, that are placed on roads or footpaths to temporarily redirect traffic in a safe manner. They are often used to create merge lanes during road construction projects or automobile accidents, though heavier, more permanent markers or signs are used if the diversion is to stay in place for a long period of time.
Traffic cones are designed to be highly visible and easily movable. Various sizes are used, commonly ranging from around 30 cm to a little over 1 m. Traffic cones come in many different colors, with orange, yellow and red being the most common colors due to their brightness. They may also have a reflective strip to further increase their visibility to vehicle traffic.
Not all traffic cones are conical; pillar shaped movable bollards fulfilling a similar function are often called by the same name.[citation needed]
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Traffic cones were originally invented in 1914 by Charles P. Rudabaker. Though at first wrought from concrete, today\'s versions are more commonly brightly-colored rubber cones.
Cones are also frequently used in indoor public spaces to mark off areas which are closed to pedestrians, such as a restroom being out of order; or to make note of a dangerous condition, such as a slippery floor. They can even be used on school playgrounds to delimit areas of a playing field. Some of the cones used for this purpose are miniature, as small as 5cm tall, and some are disposable full size cones made of biodegradable paper.
Traffic cones are typically used outdoors during road work or other situations requiring traffic redirection or advance warning of hazards or dangers. For night time use, or low-light situations traffic cones are usually fitted with a reflective sleeve to increase visibility and safety.
Typical Australian traffic cones with reflective sleeve for night visibility.
Typical traffic cones are fluorescent "safety" orange and come in sizes such as:
Cones are easy to move or remove. Where sturdier (and larger) markers are needed, construction sites use traffic barrels (plastic orange barrels with reflective stripes, normally about the same size as a 55 gallon (208 L) drum), which may be weighted with sandbags may be used. When a lane closure must also be a physical barrier against cars accidentally crossing it, a Jersey barrier is preferred.
In countries such as Australia traffic barrels are rarely seen; devices known as bollards are used instead of traffic cones in situations where larger and sturdier warning or delineation devices are needed.
Typically bollards are 1150 mm high fluorescent orange posts with reflective tape and heavy weight rubber bases.
Larger devices such as barrier boards may also be used instead of traffic cones where larger areas need to be excluded or for longer periods.
This article is licensed under the GNU Free Documentation License. It uses material from Wikipedia
