Looks like Bishan Depot is the main depot.I think I saw a yellow
colour train that is shorter than a normal train,is that the money
train?
that yellow colour train you saw, is called a schoma electric
shunter..
there are 4 Schoma electric locomotives in smrt.
EL01, EL02, EL03 and EL04.
I was told the on-board diesel engine was removed from these
locomotives.
The small diesel engine was to charge the battery units through a
mini-dc generator.
there's also another yellow colour train, made for maintenance
usually...
called the deli loco. SMRT has 15 units of this..