Post by Deleted on Apr 25, 2012 18:15:29 GMT
Hi,
This situation happens often on Paris RER line A which is manually driven but with an automated onboard spacing system (named SACEM) in the heavily loaded central section (from Vincennes to La Défense with 28 trains an hour at the peak).
The system (like most French automated block systems) allows entering an occupied block section and getting as close as possible to the train ahead.
During the evening peak, iti is quite common that a train stops for a longer time than scheduled at busy stations, and that the following one gets standing a few yards before entering the station. As soon as the first train starts departing, without waiting for the whole length of the platform to be free, the second train begins entering the station. If the first train departs slowly (next signal at danger...), both trains move very slowly, one leaving, the other entering, with less than one coach space between them.
This situation happens often on Paris RER line A which is manually driven but with an automated onboard spacing system (named SACEM) in the heavily loaded central section (from Vincennes to La Défense with 28 trains an hour at the peak).
The system (like most French automated block systems) allows entering an occupied block section and getting as close as possible to the train ahead.
During the evening peak, iti is quite common that a train stops for a longer time than scheduled at busy stations, and that the following one gets standing a few yards before entering the station. As soon as the first train starts departing, without waiting for the whole length of the platform to be free, the second train begins entering the station. If the first train departs slowly (next signal at danger...), both trains move very slowly, one leaving, the other entering, with less than one coach space between them.
