The trains are designed for Unattended Train Operation without operators’ assistance, but will initially run in Automatic Train Operation mode, with two train operators onboard supervising services.
CMRL plans to introduce driverless operations by mid-2027. UTO testing is under way, with 120 test cases or scenarios to be validated before CMRL applies for CMRS certification. Fifteen trains will initially operate at 10-minute intervals. The maximum fare between Vadapalani and Poonamallee Bypass will be Rs 40, while longer journeys will cost Rs 50. Each three-car train can carry up to 900 passengers.
Two operators will remain onboard all trains and operate them in degraded mode, with one applying brakes manually while the other monitors signals and assists during emergencies. Under UTO, door control and routine train movements will be handled automatically under supervision from the Operation Control Centre. Testing will continue overnight after services begin. Trains have a maximum design speed of 80kmph but will average 32kmph, slowing on two curves. At present, Delhi Metro operates Unattended Train Operation services in India. Metro systems in Singapore, Dubai and several European cities also operate driverless services.
