In the 1990s, a new way of thinking about transport emerged.
Sustainability became the buzz word, advocates of a so-called New Realism had the ear of government and a ten-year plan was hatched.
But many of its ideas got no further than Whitehall.
Chris Ledgard looks back at the revolution which never happened and asks if transport is one of the hardest ministerial briefs in government.
What happened to the government's ambitious transport plans of 10 years ago?