Slow zone

Dual PSR on the 125 mph Midland Main Line at Belper

Temporary speed limit before a flange lubricator at Belper

A slow zone, in America, is an area where a train is forced to slow down for either structural, construction, power, signal, or track problems. Slow zones limit a train to about 10-35 MPH. Notification to train crews is referred to as a "slow order."

单词	Temporary speed restriction
释义	Temporary speed restriction 英语百科 Slow zone A slow zone, in America, is an area where a train is forced to slow down for either structural, construction, power, signal, or track problems. Slow zones limit a train to about 10-35 MPH. Notification to train crews is referred to as a "slow order."
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Temporary speed restriction

Slow zone