We don't know the state of the multiple drivers to cause these posts, or for the drivers to run into the corresponding posts, but they're a) in the US (Atlanta, Oakland, and Brookfield, CT) and b) it sounds like it's happened more than a few times.
There are 2.75 - 4 billion buildings on this planet. Something will happen a few times or more than few times. Sometimes asteroids hit the planet and most species go extinct.
https://old.reddit.com/r/cars/comments/myfroy/today_the_14th...
https://old.reddit.com/r/HomeImprovement/comments/5da1w1/bes...
https://i95rock.com/how-to-avoid-a-car-crash-as-you-approach...