Traffic directions being given at the Old Green Crossing by a policeman standing in the centre of a temporary roundabout. Trams pass through the centre of the roundabout.
Many thanks to Alan George who dated the photo this way:
"This is a particularly good picture which we can date pretty accurately. Kingsway is there (opened 1934). Though maybe not open yet. There is a tram. (which seem to have gone around 1937). The Shaftesbury Hotel is still there but does not appear in the 1938 directory. So I'm guessing this pic must be 1934 - 1937."