At the southern end of the ECR, the plan was to connect it at Kidbrooke to the South Cross Route (running west across south London), the A2 (heading east out of London) and the A20 (heading south-east out of London). In fact, a new dual carriageway section of the A2 was constructed through Eltham to meet the ECR at Kidbrooke in the 1980s providing an efficient route out of London in this direction and the A20 passes only about to the south although it does not connect directly to the ECR and it was never upgraded to the motorway standard road that was intended.