SCHEDULE 2 CONDITIONS AND REQUIREMENTS TO BE COMPLIED WITH BY THE RAILWAY UNDERTAKING
11 When the ‘lower’ push button is pressed the sequence of events to close the crossing to road traffic shall begin. The sequence shall be:
(a) the amber lamps shall immediately show and the audible warning shall begin. The lights shall show for approximately 3 seconds;
(b) immediately the amber lamps are extinguished the intermittent red lights shall show;
(c) 4 to 6 seconds later, the left-hand side barriers shall begin to descend and shall take a further 6 to 10 seconds to reach the lowered position;
(d) the right-hand side barriers shall then begin to descend taking 6 to 10 seconds to reach the lowered position;
(e) the audible warning shall stop when all the barriers are fully lowered.