This started off as a note about reducing public transport fares.
However, once I started to put together the data needed to estimate
what some of the proposals were going to cost the picture became more
complex. Up till then I thought that, because about 65% of commutes
used cars as their main method of travel to work there was plenty of
scope for reducing transport emissions and congestion by getting most
of these commuters to switch to public or active transport.
