Not long after I posted the above message, a friend rang and said that her daughter was stuck in the tailback of traffic and there was no way of avoiding this area.
I seem to remember that the authorities at enormous expense removed the central reservation barriers and replaced them with a barrier that could be removed in order to allow the traffic to continue flowing by using one lane of the opposite carriageway
The scheme was such a success that in the first 18 months the barriers were never used!
