John Rowland wrote:
In Grafton Rd NW5 there is a short stretch which is northbound-only for a
few hours in the morning and southbound-only for a few hours in the evening.
There is a pair of cameras to ensure the law is upheld. How much does a pair
of cameras like this cost to install, and how much to maintain?

Probably less than the cost of one fatal head on accident by idiots who
would take a chance in the absence of cameras.
George