Its 1990 and Greiner is in, which means CityRail is in, and things are about to get shaken up. The main change in 1990 was the loss of overnight trains and the introduction of NightRide buses to replace them.
Also note the peak hour service from Bankstown in the morning. Between 7 and 9am, 16 trains (8 per hour) leave Bankstown for the City, compared with 15 today. Also the service pattern is significantly different, with alternating Bankstown 'circles' and Bankstown starters, only occasional services from Liverpool.
Weekends are a particulary unsatisfactory 30 minutely intervals.
We also have a line manager- part of the CityRail reorganisation.