Four cars come to a four-way stop
At the very same time.
Not present is a traffic cop
(Thank goodness there's no crime.)
...
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Judith got it. Your picture looked like a roundabout, but you don't necessarily stop at those.
When I go to 'Manage Comments' I see a comment from Judith Blatherwick on this poem, but when I come here to reply to the comment, it isn't here! At least I'm not seeing it. It has to be here, but it's invisible to me.
Judith must have deleted her comment, but this one is rather simple. The reason there was no crash is that all four of the drivers made right turns!