On 30/10/2011 17:45, Basil Jet wrote:
On 2011\10\30 17:01, Nightjar wrote:
On 30/10/2011 08:03, Basil Jet wrote:
At the crossroads of Exhibition Road and Cromwell Road SW7, traffic
approaching from three directions is now banned from turning left or
right. This is signified by the green light being a forward arrow. At
other junctions where both turns are banned you would see a vertical
white arrow on a blue background beneath the three traffic lights, but
they have not done that here. The result is that if you arrive at the
junction when the light is red, you may not know that the turns are
banned until the light turns green, and since most people start moving
when the amber comes on, that seems a bit late to me.

Amber still means stop, so they shouldn't be moving until the green
light comes on, by which time the indication is clear.

Crashes will occur. People will pull off to turn left, notice the green
arrow and stop while they think and get rear-ended. You might say people
shouldn't do this, but the golden rule of driving is don't confuse other
road users, and this signage will confuse and will cause crashes. It
might have already happened, it would explain why the temporary easel
signs have been put in.

I would guess that the temporary signs are there pending the
installation of a permanent up arrow, which the Traffic Signs Manual
gives as the correct sign for use in this situation when the junction is
controlled by lights.

Colin Bignell