"Aidan Stanger" wrote in message
...
John Rowland wrote:

Hi all,

I have often seen footage of foreign crossroads with 2 diagonal
pedestrian
crossings in addition to the 4 orthogonal crossings we usually have here
in
Britain. Today I found a crossroads with all six crossings just east of
Burnt Oak tube station in Northwest London. According to the nearest
person
I could accost, it's been like that for about 2 or 3 years. Is this the
only
one in Britain? It seems to have been there too long to be a trial.

The big mystery is why so few crossings in London are marked like that.
Space is such a constraint that most of London's signalled crossings use
the Barnes Dance sequence UIVMM.

I suspect the main constraint is that a diagonal crossing, being a greater
distance, requires vehicle traffic to be stopped for longer than with an
ordinary orthogonal crossing. So it's pedestrian convenience vs motorist
convenience.

PaulO