Don't let them change railways into roads or busways
E A Gibbins Railway Conversion - the impractical dream
Publisher: Leisure Products (12 Aug 2006) ISBN: 978-0953522514
When the oil runs short
For an American-based analysis of the current situation see: lightrailnow
It includes a link which allows you to download a 90-page report by Robert Hirsch on the energy crisis commissioned by the US Department of Energy.