MTA LIRR Mean Distance Between Failures: Beginning 2015

Mean Distance Between Failures represents the number of miles a rail car travels before a mechanical failure makes the train arrive at its final destination more than 5 minutes and 59 seconds later than scheduled. This measures the reliability of equipment in revenue service.

故障平均距离代表了铁路车辆在机械故障导致列车晚于预定时间5分钟59秒到达目的地之前所行驶的英里数。此指标用于衡量收入服务中设备的可靠性。