Signalling

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In the subway, there are many signals and signs that you must recognise for safe and efficient operation. Failure to respect them could result in delays and inconvenience for the passengers.
Ultimately, there are safeguard devices which prevent most serious accidents from happening for all possible combination of failures.




Track signals are used to regulate train traffic and ensure safety of all trains and their relative motion. Take time to memorize the signals and their meanings.

Signalling
One red light: Stop! Driving through is prohibited. red.jpg
One yellow, one red light: Stop! Driving through is prohibited. yellow-red.jpg
One red light, "ОП": Tracks and dead ends are terminated with one red light and a "ОП" (опасность/opasnost, danger) sign. Do not cross under any circumstances! red-op.jpg
One flashing red light, "ДОП": "ДОП" (добавочный опасность/dobavochnyy opasnost) means "additional danger". This indicates that there is a temporary change to the track configuration which should be treated as a dead end. For example, if a track switch is in the wrong position as you approach a merging junction, as it would derail the train when passing over it. flashred-dop.jpg
One red light, one flashing white light: Train is invited to proceed through the red light, no faster than 20 km/h. Train must stop at the next obstacle. The dispatcher must be notified before train starts moving and after it passes the white light. red-flashwhite.jpg
One red light, one white square light: Train is invited to proceed through the red light, no faster than 20 km/h. Train must stop at the next obstacle. The dispatcher must be notified before train starts moving and after it passes the white light. 300px-%D0%98%D0%A1%D0%98_%D0%9C%D0%B5%D1%82%D1%80%D0%BE%D0%BF%D0%BE%D0%BB%D0%B8%D1%82%D0%B5%D0%BD_21.png
One green light: Driving is permitted with the current speed limit. green.jpg
One yellow light: Driving is permitted, next signal is red. Proceed at reduced speed and expect to stop. yellow.jpg
One yellow, one green light: Driving is permitted with reduced speed, no faster than 60 km/h. Next yellow light must be crossed at no more than 35 km/h. yellow-green.jpg
One blue light: Driving is permitted according to ALS-ARS indications. If ALS indicator displays 0, ERR/NOS, or flashing ERR and 0 then the train is forbidden to cross it. blue.jpg
One flashing yellow light, one yellow light: Driving to alternate track is permitted. Next signal is yellow or green. flashyellow-yellow.jpg
Two yellow lights: Driving to alternate track is permitted. Next signal is red. yellow-yellow.jpg
Repeater: Repeat all signals from main. 300px-%D0%98%D0%A1%D0%98_%D0%9C%D0%B5%D1%82%D1%80%D0%BE%D0%BF%D0%BE%D0%BB%D0%B8%D1%82%D0%B5%D0%BD_22.png