A few miles further east it loops around the north of the suburban town of Romford.
After this, it ends at the Gallows Corner roundabout (a former execution site) where the A127 Southend Arterial Road branches off.
Traffic wishing to go down to Southend on the A127 may use the flyover, built as a temporary measure in 1969, to avoid the roundabout.
It was originally designed for the M12 motorway, which would have run from South Woodford at the M11 to the proposed Maplin Sands Airport in Southend-on-Sea.
The road was built during the 1920s and 1930s[1] as a bypass of the A12 (now A118), which went through Romford, Chadwell Heath, Goodmayes, Ilford before meeting the A11 at Stratford.