In my city, these four ways are being replaced by round a bouts. Problems solved.
The issue with roundabouts is that they require an additional degree of awareness, engagement, and judgement that the average driver is already lacking in.
Here, people still don't know how to use one that was installed a couple years ago, and ignore the rights of way just like stop signs, or in general.
And, many bicyclists believe they have carte blanche with respect to not obeying traffic controls, most often stop signs.