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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.
Today, there are more than 25 million Botts' dots in use in California, [6] though they have started falling out of favor. In 2017, Caltrans announced that it would stop using Botts' dots as the sole indicator of lane division, due to cost and worker safety, and in order to make roadways more compatible with self-driving cars.
Traffic cones are channelizing devices shaped like cones, thus the name. They are made from bright orange flexible materials, not less than 18 inches (0.46 m) in height. Cones used at night must have bands of reflective material near the top. These are used to close a particular area or divide traffic lanes temporarily. Tubular markers are ...
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Anti-trespass panels, rubber mats with cones or pyramids used by railroads to prevent people from walking on or near tracks; A hat belonging to a witch ; A turret with a conical roof (see also, witch tower) A traffic cone; A cone shaped playground roundabout that is mounted in such a way that the axis of rotation is free to tilt