On Sun, 23 Nov 2008 05:09:43 -0800 (PST), Mr Thant
wrote:

The system is called "extended green" and keeps the lights from
changing in the face of an approaching bus. There's no visible
indication a set of lights has it.

Does anyone tell the bus drivers? It'd save them feeling compelled to
accelerate towards the green to make sure they get through.

How prevalent is it?

Neil

--
Neil Williams
Put my first name before the at to reply.