English Dictionary

cab signalling

noun

(rail transport, British spelling) A rail safety system installed in the driving cab of a train, which gives information to the train driver on track status and condition.

The train uses cab signalling to ensure safe operation.

意味（1）

(rail transport, British spelling) A rail safety system installed in the driving cab of a train, which gives information to the train driver on track status and condition.

Now, a century later, semaphores and discs are giving place to colour and position lights. What will be the fashion in 2041? Universal continuous cab signalling?