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A trap street is a fictitious entry in the form of a misrepresented street on a map, often outside the area the map nominally covers, for the purpose of "trapping" potential copyright violators of the map who, if caught, would be unable to explain the inclusion of the "trap street" on their map as innocent. On maps that are not of streets, other "copyright trap" features (such as nonexistent towns or mountains with the wrong elevations) may be inserted or altered for the same purpose.〔Cecil Adams. (''Do maps have 'copyright traps' to permit detection of unauthorized copies?'' ) ''The Straight Dope'', August 16, 1991.〕 Trap streets are often nonexistent streets; but sometimes, rather than actually depicting a street where none exists, a map will misrepresent the nature of a street in a fashion that can still be used to detect copyright violators but is less likely to interfere with navigation. For instance, a map might add nonexistent bends to a street, or depict a major street as a narrow lane, without changing its location or its connections to other streets. Trap streets are rarely acknowledged by publishers; though a popular driver's atlas for the Greek city of Athens, warns inside its front cover that potential copyright violators should beware of trap streets.〔"" Greek-language map book published by Nik. & Ioan Fotis O.E. (Νικ. & Ιωάν. Φωτής Ο.Ε. , http://www.fotismaps.gr), Greek-language warning inside front cover〕 == Examples == In an edition of the BBC Two programme ''Map Man'', first broadcast 17 October 2005, a spokesman for the ''Geographers' A–Z Street Atlas'' company claimed there are "about 100" trap streets included in the London edition of the street atlas. One such street, "Bartlett Place", a genuine but misnamed walkway, was identified in the programme, and will appear in future editions under its real name, Broadway Walk. It has been suggested that Google Earth placed Sandy Island (New Caledonia) as the geographical analog to a trap street, although historical evidence implies that it originated as a cartographical error and Google simply passed the error along. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「trap street」の詳細全文を読む スポンサード リンク
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