We call them rotaries or traffic circles here in NH. They work well as long as you're not a dick and can half way drive.

Its literally the worst of two things combined
looks like your neighborhood caught the aids

Poorest designed roundabout ever. That is a FAIL as a well designed roundabout entry points are curved at 20-30 degrees to keep the traffic moving and a yield sign.

This designer didn't know what they were doing. Grade F and gives a roundabout a bad name, as can be seen by this thread.

(traffic engineer here)

Oddly if they are designed geometrically correctly, signed correctly and proper striping, the drivers barely notice a difference.

You'll pop out the other side and say "whoa what was different back there"

They work VERY well but the three design criteria must be followed.

They are becoming the new standard. I am a HUGE believer in them personally as they are VERY efficient for the corridor.

They have a few in Lincoln.

One really nice thing about roundabouts in Massachusetts is that Mass drivers don't slow down for anything, so getting through efficiently is guaranteed

The roundabout on Route 1 in Revere on the way to Logan is a very good example. Even the truckers blast through there balls to the wall.

I used to commute from Dover NH to Boston every day, and once I hit the Hampton toll southbound on I-95 I always felt like I needed a helmet, a fire suit, and a HANS device

Because people are idiots.

I've learned on toad trips, to take whichever lane is vacant at the toll plazas on turnpikes, because every so often, some blind moron 'doesn't notice' the difference between the giant, ILLUMINATED, purple 'EZ-PASS ONLY' signs above specific lanes, vs the green 'TAKE TICKET' or 'CASH OR CREDIT' lanes.

A moron without the EZ-Pass transponder will block the lane, while repeatedly pushing the button trying to get a ticket (EZ-Pass lanes are set to discourage non EZ-Pass holders from clogging the lane, by not spitting out a ticket for at least 5-10 minutes, or until an attendant shows up) or wondering why there's no attendant to pay.

How did they not see the different BRIGHTLY LIT purple vs green signs from 1/2 mile to a mile away? Or did they see the signs and think, "Duhr... I wonder what EZ-pass only means? Lemme go there and see...". Morons either way.

Something like https://jalopnik.com/5533260/why-street-signs-make-traffic-more-dangerous.  Yes, removing signs reduces distractions and improves driver awareness.  Also in some cases by going with “naked streets” (removing all the markings, reducing the speed limit,  etc) the result has been strikingly positive.  You don’t do this in major streets, you do this downtown squares and main streets, etc.

I was looking for and couldn’t find a great article I read several years ago.  It was about a plan Germany had for removing extra signage.  It had four people going around in a car: an engineer, a lawyer, a goverment regulations guy, and some safety advocate of some sort.  Basically the four would look at an intersection or street, and they’d remove all the signs they agreed to remove.  No waiting, no planning, no overhead, they’d just unbolt the signs and stash them in their truck.  Some of the before-and-after photos were awesome. Apparently Germany has a “put a sign up for everything” culture that got out of hand.

Yes that was my experience. I followed the signage and flow of traffic and had a what happened there moment afterwards  The next time I understood what was going on.

We were on an 8000 mile three week Seattle to Chicago to DC to Lake Placid to Denver to Seattle road trip. We saw all sorts of derp driving and some odd to me intersections.