Another hare-brained scheme
Build a dual tunnel from Limehouse to Marylebone, get rid of the
Renwick Road (Barking) and the Canary Wharf Northern Access traffic
lights (pretty pointless), and also grade-separate Gypsy Corner and the
A4000 junction.
Hey presto - a nice non-stop drive from Barking to Greenford

/another hare-brained scheme