虽然也有例外，如美铁的亚塞拉和东北快线，这两条线路在十字交叉口对于火车速度限制在50英里/小时以内，对于客车则限速在80英里/小时以内。
With some exceptions on Amtrak's Acela and North East corridor tracks, level crossings are attuned to limits of 50mph for freight and 80mph for passenger trains.
虽然也有例外，如美铁的亚塞拉和东北快线，这两条线路在十字交叉口对于火车速度限制在50英里/小时以内，对于客车则限速在80英里/小时以内。
With some exceptions on Amtrak's Acela and North East corridor tracks, level crossings are attuned to limits of 50mph for freight and 80mph for passenger trains.
应用推荐