The level crossing system is fully automated, the priority setting simply adjusts the trigger point for each level crossing
So at priority 1 (highest) the gates will drop in sufficient time for a train traveling at full line speed to pass full green signals all the way. This is the default on all crossings on the intercity network
On DART the system requests the gates down in such a way that the DART can always make forward progress, but will frequently be restricted as a yellow instead of green signal will be shown. Some minor tweaks could deliver savings.
|