Agree the hub and spoke model and ZBTT was looking so good on paper, but it is implemented so badly ki GT line pe jha phle trains proper lineup me chlti thi ab multiple overtakes re overtakes hote hai, they are not properly placed in the slots. 2-3 minute ka gap rkha h jo ideally 10 minutes hona chaahie tha taaki gap maintain rhe isse average speed bhi sahi aati. Poorly made TT best example Shatabdi, jo TT easily 8 hour 10-15 minutes ho skta tha usko 8 hour 40 minutes krdiya hai. 15 minutes slowdown even when it should be the highest priority train in the route for that slot.