Some interesting trends, over the last decade.
Train trips up 24%,
bus trips up 19%,
car trips up 5%,
total public transport use up 21%

Population up 13%,
Vehicle ownership up 23%,
Weekend trips up 10%.

Those under 40 are increasingly walking and using public transport. While those over 60 are relying more on cars.

There was a 27% increase in full time students. 21% of students walk only and a whopping 75% travel by car!

Employed people are more likely to use Train and Bus, in preference to a car, than unemployed. Retired and aged pensioners like the Train & Bus, use their own vehicle's more than employed people, less than unemployed, but are less likely to walk than both groups.

148% increase in Teleworking.

More at:
Household Travel Survey Report: Sydney 2012/13, November 2014: