Traffic cones (also called road cones) are brightly-colored plastic cones used on roads for diverting traffic at construction sites or accidents.
Cones are also frequently used in indoor public spaces to mark off areas which are closed to pedestrians, such as a restroom 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.
Traffic cones come in many different colors, with orange, yellow and red being the most common one due to their brightness. They may also have a reflective strip to further increase their visibility.
Cones are easy to move or remove. Where sturdier (and larger) markers are needed, construction sites use traffic barrels, which may be weighted with sandbags. When a lane closure must also be a physical barrier against cars accidentally crossing it, Jersey barrier is preferred.
In popular culture, stealing of traffic cones is seen as being popular with drunk students.
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