A timetable reproducing the service in the days each line controlled by Cathcart had a 15-minute interval service, giving 10 trains per hour during the day until around 19.00, with extra workings in the morning and evening rush-hours.

This timetable has a 15.00 start that minimises the standard interval repetitions before the evening rush hour. After 19.00 the service quietens considerably with complete cessation of Inner & Outer Circle trains and a new service pattern until shutdown.

120 trains: operating hours 15.00 – 00.03