Morning crossovers to EWL from NSL utilises crossover tracks just
before the EB platform at JE. Duties 40, 41, 42, 43, 44 and 45 are
the morning crossovers.
Trains going NSL from Changi Depot mainly do not use any
crossover tracks, just hopping of depots. =)
Changi > Ulu Pandan > Bishan
4 of them start from AMK. One starts from Marina Bay all the way
to Jurong East and continue onto the EWL to Pasir Ris and continue
serving EWL til the end of the AM Peak usually 2 park at Changi and
3 park a Ulu Pandan. In the evening peak, 3 trains from Ulu Pandan
will crossover to NSL to do Yew Tee evening shuttle service for 2-3
trips and one trip down to AMK where it terminaes and heads back to
Bishan
Changi Depot trains need to park at Ulu Pandan on the next day
before being able to be deployed onto the NSL.