d wrote:
"John Rowland" wrote in message
...

Obviously when traffic is stop-start you don't enter the box junction
until you can leave it. But if traffic moving at full speed across box
junctions refused to enter until their exit was clear, the capacity of the
road network would be slashed, and gridlock would result, the very thing
that box junctions are supposed to prevent.

Which is what I said

No you said you shouldn't enter the box until the driver in front has
exited because then your exit is not clear.

If the traffic is flowing but not at such a speed that the box covers
the 2-second gap you should continue across in a normal manner.

I was referring to a situation where the driver in front clears the box
then stops needlessly leaving you stranded.

Now if the rules were enforced via officers at the scene, they might
use common sense. But as long as it is enforced by automatic cameras,
it is obvious which driver would be penalised.