On 2012\01\15 20:29, WZR wrote:
On Sun, 15 Jan 2012 19:50:24 +0000, Charles Ellson wrote:

And taking into account how much attention is paid by some cycling
politicians to traffic lights etc. .....

Tripcocks!

It would be quite simple to install circular grids with grooves wide
enough for a cycle wheel at every traffic light stop line, which rotate
90 degrees every time the lights change. They could be called trip****s.