It will take an year before change in TT is effected. The LPs and ALPs and on ground signalling staff should be weel accustomed to the new system of higher speeds and management of schedules of cargo trains. In SCR and CR the lines itarsi to Nagpur Vijayawada Gudur Chennai are ready 2 yrs back and operating trains only last year just before TAAG is released in oct 2022.Tbey may be effected in TT this year but lot of NI and safety related upgrades are being carried and trains frequently cancelled. No train is running ahead for scheduled TT though they are operating at 130kmph. I myself experienced it.