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String Transport or Yunitskiy String Transport is an elevated transportation system using two "strings" or tracks with a wheeled vehicle riding on them. It is proposed for both freight and passengers designed by Russian inventor Anatoly Yunitskiy. The project received grants from UN-HABITAT. In 2008 the pilot route in Khabarovsk was planned. But specialists of Moscow State University of Railway Engineering was given a negative opinion for the project and it was not implemented. == Technical == The string transport is a transport system design not yet built nor planned. Only small scale models exist. The way design is based upon the use of strings built with high-tensioned steel wires inserted into a concrete/resin core and enveloped within a steel shell. It differs from traditional cable ropeways by using a perfectly flat rolling way to limit the wear, rolling resistance and noise. The functions dedicated to rope tension and rolling way are handled by separate parts. Low span intervals (~50m) coupled with tension much higher than common ropeway allow for low sag, permitting high speed operation. The string attachments are fixed and there is no tensioning system. The steel thermal expansion over the seasons is absorbed by the modification of the tension stress in the string. As such there are no junction gaps in the rail except for switches, which are built similarly to railway switches. In principle, the system can utilize the most direct possible route, but it is possible to create curves by using intermediate supports which locally replace the string with steel structures. 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「String transport」の詳細全文を読む スポンサード リンク
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