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随着全国各大城市轨道交通建设大规模地展开,在国铁受到冷遇的小号码道岔在城市轨道交通中得到了较多的应用。选用小号码道岔,可以节约土地用量,降低地铁建设成本,同时也迫使地铁车辆段的选址逐渐远离闹市区。广州地铁5号线道岔是全国最小号码的道岔,以此为例介绍了道岔的设计应用和维护。合理地选用小号码道岔符合城市轨道交通的特点。
With the large-scale development of rail transit in major cities throughout the country, small-sized turnouts that have been hit hard by the National Rail have gained more applications in urban rail transit. Selection of small number turnout, you can save land usage, reduce the cost of subway construction, but also forced the subway depot location gradually away from the downtown area. Guangzhou Metro Line 5 Turnout is the smallest number of switches in the country, as an example to introduce the design and application of turnouts and maintenance. Reasonable selection of small number of turnouts in line with the characteristics of urban rail transit.