On 2017-02-15 10:46:24 +0000, tim... said:

bit difficult to do when the roundabout is above a motorway junction

There are plenty of cases where it isn't, e.g. the roundabout in Slough
made famous by "The Office" which was indeed removed and replaced with
a signalled junction.

OTOH, traffic signals on roundabouts often do make sense to solve a
specific problem involving unbalanced flows without reducing the
capacity of the junction.

Neil
--
Neil Williams
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