cones where larger and sturdier warning or delineation devices are needed. Typically, bollards are high fluorescent orange posts with reflective sleeve and heavyweight rubber bases. Larger devices such as barrier boards may be used instead of cones where larger areas need to be excluded or for longer periods. Indoor and non-traffic use Cones are used to lay out courses for autocross competitions. 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 denote a dangerous condition, such as a slippery floor. They can be used on school playgrounds to limit areas of a playing field, and on ice rinks to define class, private party, or private lesson areas. Some of the cones used for this purpose are miniature, as small as tall, and some are disposable full-size cones made of biodegradable paper. Being distinctive, easily portable and usually left unguarded, traffic cones are often stolen. Students are frequently blamed, to the extent that the British National Union of Students has attempted to play down this "outdated stereotype". In popular culture In 2007, artist Dennis Oppenheim commemorated the traffic cone with a monumental sculpture of five five-metre-tall cones. They were installed temporarily in Miami, Seattle's Olympic Sculpture Park, and Seoul, Korea. An orange-and-white cone is the logo used by VideoLAN (best known for its VLC media player software). German group Kraftwerk featured traffic cones on their first two albums, as well as in their concerts at the time. Traditionally, but unofficially, the Wellington Statue in Glasgow is decorated with a traffic cone. The presence of the cone is given as the reason the statue is in the Lonely Planet 1000 Ultimate Sights guide (at number 229) as a "most bizarre monument". Television The Traffic Cones is a Belgian TV series on Nickelodeon. See also Amsterdammertje Bollard Cones Hotline Construction barrel Road traffic control Traffic barrier Traffic guard References External links wikt:traffic cone Federal Highway Administration Manual on Uniform Traffic Control Devices American inventions Road safety Road transport Safety equipment Streetworks Traffic signs 1914 introductions