kytelly wrote:

St Martins Lane would get my vote to be
pedestrianised as well as thats mainly a black cab rat run these days.

I imagine the road is mainly used by car drivers following their TomToms,
which don't realise there is a forced left turn into William IV Street, and
so erroneously suggest St Martins Lane as the shortest route from much of
North London to much of South London. Black cabs wouldn't use it as a rat
run because they know about the forced left turn - they use St Martins Lane
because it's full of hotels and pubs and theatres to which people wish to be
taken.