Since 1996, three sections of a new A421 expressway have been built, progressively completing a fast route that serves to link Cambridge to Milton Keynes and Bedford to the wider world.
The wait is over! The full map of the Ringways, London’s unbuilt urban motorway network, is now online. Not even the system's planners had anything like this.
Three roads were built in the space of 200 years, all trying to tame Rannoch Moor and Glen Coe. This is the impressive tale of one of Scotland's most memorable routes.