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They are putting them in near me. I love them. Much more efficient than stop signs.
10-01-2015, 09:46 PM
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n/a posts
We have a couple of multi-lane circles and they're great. Unfortunately one of the circles I go through somewhat regularly put up stop signs when entering the circle, negating one of the key benefits of having a circle instead of a four way stop.
Quote:
Originally Posted by mikeb29456
How about a 4 way stop sign? Everyone gets a chance. And not as long as a red light.
If you're out in the middle of nowhere with little traffic, sure.
The four way stop rapidly becomes a huge bottleneck when there's any appreciable number of cars.
There was a two lane traffic circle in Raleigh, NC near NC State's campus and they were averaging about one accident a week, so they decided to make it a single lane traffic circle and the accident rate decreased tremendously.
I've been traveling in several states this year and encounter roundabouts often. I find the multi lane ones to be the largest and most efficient plus safety wise. The small single ones I've driven are the worst ones, too e-z to have a collision, a multi one allows you room to move over. Semi's have a difficult time with the single ones also.
Some places still call them rotary's.
Here in MA, we have many multi lane rotaries. The best ones are not striped and the drivers are able to enter, drift over, and exit without issue. When lanes and striping are added, it is my opinion that most people are incapable of processing that much and thus these rotaries become clusters.
Here in MA, we have many multi lane rotaries. The best ones are not striped and the drivers are able to enter, drift over, and exit without issue. When lanes and striping are added, it is my opinion that most people are incapable of processing that much and thus these rotaries become clusters.
Yup. If you are local and understand how they work, it's pretty simple. Getting off at the first exit? stay on the outside. Going 1/2 or 3/4 of the way around, stay on inside lane and move over to right one 1/4 before your exit.
IIRC many are not striped, and understood to be 2 lanes.
Here's one by my house. 2 lane roads (45MPH) spur off it. Cars on the inside of the rotary are traveling around while cars in outside lanes are exiting.
A. No one knows how to use them.
B. They are usually too small in circumference. to keep the traffic flowing. As soon as a car gets into the circle form one road its already on top of the next road entering into the circle, giving no time for someone on the next road to enter. I think ideally they should be larger, say 4 or 5 car lengths between each entering road. That would mean at minimum 16 car lengths in circumference.
This is one in our area. It effectively is a 4 way stop because it is way too small for the amount of traffic. The one posted previously looks like it is large enough to be effective.
Roundabouts are not designed to reduce accidents. They are designed to reduce "serious" accidents. The pattern creates a likelihood of any impact being less than perpendicular and therefore less severe than those typically seen at a traditional intersection.
People will simply need to learn how to use them properly and be aware of the traffic around them. In other words, put down the phone.
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