Pilot staff will be working on the Down Main line between Glenbrook and Springwood on specified nights to facilitate special train movements. Qualified workers must be provided to operate the Glenbrook emergency crossovers and Springwood crossover #117 and act as signallers, in accordance with procedure NSY 516. Any work performed on the track in the pilot staff work section must follow the network rules and procedures. Drivers may be authorized to pass Signal SD 21 at Valley Heights according to procedure NSG 608.