On Thu, 16 Jul 2009 17:05:16 +0100
Mike Bristow wrote:
of empty shop car parks and industrial estates at 1am. Don't tell me thats
not done on purpose just to slow down traffic who might be trying to get a
move on on an empty dual carraigeway. You're not allowed to get anywhere
quickly in london.

It's probably done on purpose on grounds of cost: lights with a
fixed (or timed) pattern will be cheaper to buy and maintain than
lights with sensors etc.

Except that each set of lights has a rather expensive red light camera
mounted in both directions.

B2003