RingRail – the 1973 railway plan that paved the way for the London Overground

In 1973, a plan for a new RingRail around London was proposed, and although it was never built as planned, it sort of did get built much later, as the London Overground.
Front cover of the report – authors own copy (c) RingRail
The RingRail was announced in March 1973, to address what was only then starting to be understood – that the motor car could not be the future of commuting in cities. As the report noted at the time, around 10% of the people who commuted to work by car took up