M64 motorway

The United Kingdom's M64 motorway was planned during the 1970s to link the M6 at Stoke-on-Trent with the M1 near Castle Donington, by way of Uttoxeter and Derby.
Its purpose would have been to allow traffic travelling from the south-east to the north-west to avoid the busy M6 around Birmingham. It was cancelled in 1976.
The A50 was built during the 1990s instead, following roughly the same route.
Meanwhile, the M6 Toll motorway was built to ease traffic congestion north of Birmingham.