The darkness sensors have been made less sensitive, on the old ones lights come on needlessly if it passes under a bridge and will take several seconds to go off, now theirs a timer that their has to be darkness for x seconds.
The GPS signalling system (TRAM OS) hasnt been turned on yet, at the moment its the driver who enters a code at the start of the journey which selects the correct preprogrammed destination display list. If the driver cocks and doesnt enter it at the start of the journey the display will be wrong.
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