02621/22 Tamil Nadu COVID - 19 Special
Now I got real reason why TN speed is not upgraded in zbtt.
Because after seeing 10 major accidents occurred to TN maybe SR maintaining less halts with slack in prime TT.
Also TN takes single loco between Mas - Ndls restlessly to avoid loco failure daily.
previously...
more... TN used have LC at Vijayawada.
Also TN with aggressive schedule needs heavy maintenance , Previous fire accidents in rake & wheel set are good example.
Also SR don't want to disturb present TT.