This PSA brought to you by several would-be assassins who tried to wave me in front of speeding cars in the last month and who will have to try harder next time.
In almost every case, it's because the entity that owns it doesn't actually have to use it daily, because then you know they'd fight to get whatever safety measures they can cram into it.
Last city I lived in had a new intersection put in with a 2 way stop (only one of the roads stops, and you have to yield to main road traffic)
After tons of minor accidents and altercations arising from disgruntled people having to swerve or slam on brakes, the city out out a statement saying basically they've done studies and it's safer than other intersections so nothing will be done to it.
Two or three years go by and one of the city council people moved and now has to use that intersection.
Within a month it had stoplights installed without a word.
Could be a coincidence. Maybe they even had been planning that for the entire two or three years.
But I personally believe nobody gave a shit until an "important" person (you know, that high-stake, much coveted small town council seat) had to use the intersection.
And i haven't seen a crash from someone launching themselves straight over the center in months.
I never heard of that sort of case short from DUI, which shouldn't be include in any accident statistic other than DUI. They're really magical people that will make all sort of edge case happen.
But yes, love roundabout, it's a really good way to make traffic flow smoother on a lot of junction, though the downside is you can't have a traffic light near it. Traffic light is always the bottleneck of every jam in my city
I lived within view of one so every time I heard a mildly distant crashing sound, it was almost always someone fucking up at the roundabout. Quite a few Dukes of Hazzard wannabes were completely sober, but "didn't know the area and were speeding". In case you're wondering, it's well lit, you have ample warning with both reduced speed and the big circling arrow signs, and it's even at the end of long straight hits so you have a clear view of what's coming. So as far as I'm concerned, there's no excuse.
I've never heard more bitching and moaning about communism than when the city first started considering putting "those damn communist euro things instead of a proper stop sign"
Like damn Bro I didn't realize people could hate efficient traffic flow so much.
This is America. The only valid traffic control structure is one that is predicated on mutually assured destruction. Anything less is namby-pamby socialist propaganda.