Railway points positioned so as to derail any vehicle running in the wrong direction on a line, as a safety precaution.
安全道岔（为使行驶方向错误的火车脱离错误轨道而设立的安全防护设施）
Example sentencesExamples
As with the other three tram/rail PCR arrangements, it controls the voltage being fed into the tram overhead ‘square’ as well as the signals for the trams and the catch points.