Peter Crosland wrote:
They have the same status as a STOP sign and there does not need to
be any other for them to take effect.

In what way does a box junction have the same status as a Stop sign? You
don't have to stop *before* crossing them, and stopping *on* them is allowed
if you are waiting to turn right across oncoming traffic.
--
Richard J.
(to e-mail me, swap uk and yon in address)