London Underground Road System

There are plans for LURS (London Underground Road System) due for 2050. It will consist of 4 expressway systems.
 * Underground 1 from M25/M26 junction to join back at Brent Cross
 * Underground 2 from Parkham Way to Carshalton
 * Underground 3 from Chiswick to Newham Way
 * Underground 4 from Holloway to Honey Lane