Interesting piece in the SMH by public transport fan Malcolm Turnbull on public transport infrastructure and the need to invest more in public transport rather than the toll roads which recent NSW state governments have preferred. There is a bit of partisan spruiking as well, but he makes some good points regardless.
There is more to this congestion than pure economics. The shift in reliance for our transport task onto private automobiles as opposed to public transport works real injustice and those who suffer are the young, the poor, the sick and the old. Lack of access to mobility is a significant contributor to poverty, social division, and isolation. Higher income groups are more likely to be located in well-serviced affluent inner city suburbs, whereas lower income groups are more likely to be located in poorly-serviced areas, often on the fringes of cities with the worst public transport