LIRR S&D DEFINITION EXAM QUESTIONS AND ANSWERS 100% ACCURATE 2025

General Notice (GN) - ANSWERA notice issued to employees by the General Superintendent-Transportation. It may contain operating instructions or other information as may be necessary. General order - ANSWERAn order issued to employees by the General Superintendent-Transportation. It may change or annul operating rules, timetable information or special instructions. Schedule - ANSWERThat part of a timetable that prescribes direction, number and movement of a regular train. Temporary Speed Restriction Bulletin (TSRB) - ANSWERA daily bulletin containing necessary speed restrictions issued by the Train Dispatcher. Timetable - ANSWERThe authority for the movement of regular trains subject to the rules. It contains classified schedules and special instructions relating to the movement of trains. Controlled Siding - ANSWERA designated track, the entrance and exit of which are governed by home signals. Current of Traffic - ANSWERThe movement of trains on a main track in one direction,