On Fri, 05 Sep 2008 20:09:52 +0100, JNugent
wrote:

Again, this is an obvious point. Those who claim that you can't build your
way out of congestion should stop for a moment and ask themselves what would
happen in London if the M25 (including the Dartford Crossing) was closed to
traffic.

And people that do think that you can build your way out of congestion
should stop for a moment and ask themselves if the M25 does work at
8am on a rainy Monday morning in December.

Prior to the M25 hardly anyone would have considered living one side
of London and working the other. Now the M25 exists people do.

People will put up with a certain level of 'crapness' in a journey. If
it is too crap then they either won't start doing it or will stop
doing it.

The M1 is being expanded into 4 lanes into London, will that solve the
congestion problems on that road? It would if only the vehicles that
currently use it, use it in the future. But as the road will become
less crap when the 4 lanes open, then more people will start using the
M1, until it degenerates again into the current level of crapness. So
you may get a small window of improvement, but it fixes nothing over
time.