The RAC's extensive report, On the move: making sense of car and train travel trends in Britain, is chock-full of interesting data about how we travel.
Company car usage amongst men has plummeted, bringing total male miles driven down, but this has been largely offset by an increase in miles driven by women:
Average changes in car driving mileage according to ownership of the vehicle, by age group and among men and women, 1995/7–2005/7
As the graph at the top of the article shows, rail usage has risen dramatically in the last 20 years. But that rise is due to more people making train journeys, not people using the trains more:
Increase in the proportion of the population recording one or more rail trips in their diary week, 1995/7 to 2005/7, by region
Even despite that switchover, though, road traffic is still almost ten times as important as train traffic (NB, however: the road traffic chart includes freight, while rail traffic does not):
Growth in road traffic in Great Britain, 1949–2011
The proportion of young people holding driving licenses is falling, particularly amongst men. Overall, however, it is still growing markedly, as the pre-car generation ages out, and female participation grows:
Car milage has stayed flat overall throughout the last decade and a half, except in London where it has dropped significantly. And unsurprisingly, the more rural your area, the more you are likely to drive:
London really is an exception in every way:
The marked increase in passenger boardings in London in 2006/7 is due to estimates of rail journeys associated with Travelcards sold by Transport for London being included in the data for the first time.