: Public Note
Created: 02.05.2018 17:36:59
Modified: 02.05.2018 17:37:04
Project:
Advanced:
Commonly, the signalman or control system calls a route which the interlocking then prepares. The route is <i>activated</i> (=<i>locked</i>) either after a given delay but more generally after an activation section turns occupied. This indicates an approaching train.