"Martin Underwood" wrote in message
...

If London squares are configured as clockwise roundabouts,
it allows the normal "give way to traffic on your right that's
already on the roundabout" rule to be used;
otherwise a contrdictory, counter-intuitive rule
would have to be used in those circumstances:
hence there woudl be the need at every junction
to think "Is this a clockwise roundabout or an
anticlockwise one? Do I give way to traffic on
my right or on my left in this specific case".
Better to have one rule for all situations.

A square is not a roundabout. When you are entering a square, it doesn't
look like a roundabout. It looks like a T-junction between three one-way
roads, like the other million T-junctions between three one-way roads in
central London. A quick glance at a map suggests that, excluding the
squares, these junctions are split 50:50 between those where you must turn
right and those where you must turn left.

--
John Rowland - Spamtrapped
Transport Plans for the London Area, updated 2001
http://www.geocities.com/Athens/Acro...69/tpftla.html
A man's vehicle is a symbol of his manhood.
That's why my vehicle's the Piccadilly Line -
It's the size of a county and it comes every two and a half minutes