Are you sure a roundabout is the best solution at this junction? - at least the signals, for all their drawbacks, make it possible to control traffic movements through the junction to give everybody a fair crack of the whip, and adjust the timings to accord with the changing traffic flow patterns through out the day, week and season, insofar as possible within the constricted roadspace available. Can't do that with a roundabout, without signalising it anyway.Short of (or even with, in view of the extra traffic which would be attracted) substantial widening of the approach carriageways and/or provision of new north/south main road routes in this part of the borough (which ain't going to happen) this junction is always going to be a congested pain, whatever the means of traffic control.The most serious deficiency here is the lack of pedestrian crossing facilities on Argyle Road.
Chris Veasey ● 6197d