Driving aids


All signals on the main tracks in Belgium are equipped with the Memor-Crocodile system.

With this system, when a train passes a “double yellow” signal (meaning a light announcing that the next light will be red) the driver is informed by a warning light in the cabin. The driver must then press a button to confirm that he has seen the warning light. If this is not done, the train’s emergency braking is applied automatically.

For more information, watch the following video






The TBL1 system (= Transmission Beacon Locomotive 1) is based on a trackside beacon which sends an electromagnetic signal to an aerial located underneath the locomotive.

With the TBL1 system, the driver must always confirm manually that he has received a warning that he has passed a double yellow signal (as for the Memor-Crocodile). But, in this case, if the driver confirms the warning, but, despite this, overruns the red signal, the train will be stopped automatically by emergency braking.

For more information, watch the following video