Public transport mode shift and road congestion

Is a modal shift to public transport an effective way to reduce road traffic congestion pressures?

I’ve discussed this issue in a few posts, but I think the following simple chart pretty much sums it all up:

You can see a significant change in both trends from around 2004 onwards.

Arguably public transport mode shift has been the most effective method for relieving congestion pressures in Melbourne in the last five years.

That is not to say traffic congestion has been solved or significantly eased, but it would likely have become much worse if road traffic volumes had continued to grow after 2004-05.

More posts on road traffic and mode shift.

3 Responses to Public transport mode shift and road congestion

  1. Alan Davies says:

    Great chart, Chris. Can’t say I can see much correlation there, though (have you calculated it?). Also, seems that congestion first flattened about 00/01 without any response from PT.

    Assuming that most of the PT patronage growth is coming from trips to the city centre, wouldn’t growth in CBD and near-CBD jobs be a more plausible explanation for the jump in PT patronage (and haven’t you previously argued something similar yourself)?


  2. Riccardo says:

    So why is it only IPART specifically acknowledges this?


  3. […] patronage on public transport increases, the need for more transport services and upgrades continues to […]


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