Great! My favorite loco class. Used to see AJJ WAM's regularly at WFD. It's sad to see them getting decommissioned.
BZA ELS is over-occupied now holding more than 200 locomotives and there is no scope for expansion. Also BZA-BVRT FEDL is in progress and that too has to be considered when planning out for BZA. With GTL-GNT, GTL-Wadi getting electrified, along with the newly electrified GTL-DMM route ( traction substation issues not-withstanding), from SCR's perspective at least, GTL is an ideal location to get a new electric locomotive shed. It's central location also makes it an ideal location for setting up the loco shed.
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more... By all means SWR should eventually get a ELS, but I feel, at the moment, having only 200-odd km of electrified route, and that too as a single main line with mostly end-to-end traffic and not multiple branches, does not warrant an ELS right away. Definitely once the electrification starts on the TK-ASK route, then SWR should get an ELS. By all means, an ELS is most welcome, but probably not a need of the hour right now.
With RPM shed having expanded with a lot of WAP7's ,ED's fleet is now less burdened and some P4's are being transferred to AJJ ( which still has a lot of scope for expansion) to make more room for locos at RPM. For just the SBC-MYS route, there should not be any problem in providing links once the GTL shed too comes up.