Automatic =
Train operated by Automatic Train Operation (ATO).
CM = Coded
Manual.
TO drives, speed is limited by ATP (Automatic Train Protection).
Used when raining,
constant orange light.
RM = Restricted
Manual.
TO have controls but speed is restricted to only 10 - 20 km/h
(not sure of the exaxt speed) in this mode. Used in deport or when
ATO / ATP fails somewhere, flashing orange light.
The light on top signals that the train is running in CM mode,
i'm not sure for RM mode though.
AM stands for Automatic Mode.
CM stands for Coded Manual, which is manual mode using some kind
of code.
RM not too sure, but i believe that it stands for Raining
Mode.
Maybe due to some TOs dont know how to use CM mode.
Individual cars are assigned a 4 digit serial number by the rail
operator SMRT.
The second digit is the generation batch. for example, a first
generation C151 would be a 0 or 1. A C651 being, a second
generation, would be a 2 ranging from x201 to x238, where x depends
on the carriage type. And a C751B would be a 3.
Hope this helps! =)
Thanks a lot guys! I've always thought that CM = control mode or
something...
By the way, what about the trip number displayed at the train
ends, near the windshield? Thanks in advance:)