https://www.google.com/maps/@30.1670295,-81.6414681,3a,75y,359.64h,86.87t/data=!3m7!1e1!3m5!1s6DPieS3bwjYTvPJK7gTPLA!2e0!6s%2F%2Fgeo3.ggpht.com%2Fcbk%3Fpanoid%3D6DPieS3bwjYTvPJK7gTPLA%26output%3Dthumbnail%26cb_client%3Dmaps_sv.tactile.gps%26thumb%3D2%26w%3D203%26h%3D100%26yaw%3D256.32288%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192
They are putting in a right turn lane at this intersection. I've heard at a town hall meeting that some people think this intersection should be made a three-way stop. What do you think about that? I've heard it said that, that is not really necessary and can actually make things worse.
If this was anywhere outside it the USA it would be a roundabout.
Quote from: SirJax on February 07, 2020, 07:11:49 AM
If this was anywhere outside it the USA it would be a roundabout.
The USA has tons of roundabouts, it's a commonly implemented modern traffic feature. Not sure what you're on about
Quote from: Peter Griffin on February 07, 2020, 07:26:44 AM
Quote from: SirJax on February 07, 2020, 07:11:49 AM
If this was anywhere outside it the USA it would be a roundabout.
The USA has tons of roundabouts, it's a commonly implemented modern traffic feature. Not sure what you're on about
He's saying it would already be one, instead of allowing the intersection as it is now to have existed up to this point.
There are still tons of T-intersections all around the world. This argument is silly.
There are many ways to improve an intersection which has reached maximum capacity. Stop signs, channelization, traffic lights, improved pavement markings, yields, roundabouts aren't the be-all-end-all intersection.
Quote from: Peter Griffin on February 07, 2020, 07:26:44 AM
Quote from: SirJax on February 07, 2020, 07:11:49 AM
If this was anywhere outside it the USA it would be a roundabout.
The USA has tons of roundabouts, it's a commonly implemented modern traffic feature. Not sure what you're on about
When you say "modern traffic feature", what does 'modern' mean to you?
Quote from: Peter Griffin on February 07, 2020, 07:26:44 AM
Quote from: SirJax on February 07, 2020, 07:11:49 AM
If this was anywhere outside it the USA it would be a roundabout.
The USA has tons of roundabouts, it's a commonly implemented modern traffic feature. Not sure what you're on about
Ummm, no.
Compared to its size, the US doesn't have many roundabouts.
In the US there are approximately 5,000 roundabouts. Compare that to say Britain, which is waay smaller geographically and has about one fifth of the population and where there are over 10,000. In France 1 of every 45 intersections is a roundabout. In the US it's 1 out of 1,118.
So no, the US doesn't have many roundabouts - in relative terms. And that's a shame because they're very good and efficient at controlling traffic flow, especially with regards to two-lane intersections like the one discussed here.
The one issue we have in the US with respect to roundabouts is that there seem to be quite a few people who don't know how to use them properly, although that in and of itself is a result of their relative paucity. I think the most common mistake people make here is that they stop or slow down more than necessary just before they get into the roundabout, even if there is no vehicle approaching from the left.
Quote from: SirJax on February 08, 2020, 08:02:31 AM
Quote from: Peter Griffin on February 07, 2020, 07:26:44 AM
Quote from: SirJax on February 07, 2020, 07:11:49 AM
If this was anywhere outside it the USA it would be a roundabout.
The USA has tons of roundabouts, it's a commonly implemented modern traffic feature. Not sure what you're on about
Ummm, no.
Compared to its size, the US doesn't have many roundabouts.
In the US there are approximately 5,000 roundabouts. Compare that to say Britain, which is waay smaller geographically and has about one fifth of the population and where there are over 10,000. In France 1 of every 45 intersections is a roundabout. In the US it's 1 out of 1,118.
So no, the US doesn't have many roundabouts - in relative terms. And that's a shame because they're very good and efficient at controlling traffic flow, especially with regards to two-lane intersections like the one discussed here.
The one issue we have in the US with respect to roundabouts is that there seem to be quite a few people who don't know how to use them properly, although that in and of itself is a result of their relative paucity. I think the most common mistake people make here is that they stop or slow down more than necessary just before they get into the roundabout, even if there is no vehicle approaching from the left.
As of 2015, the UK apparently had about 25,000 roundabouts. But roundabouts have their own issues, of course.
https://www.theguardian.com/cities/2015/oct/19/traffic-lights-roundabouts-way-out
Quote from: Adam White on February 09, 2020, 06:47:23 AM
Quote from: SirJax on February 08, 2020, 08:02:31 AM
Quote from: Peter Griffin on February 07, 2020, 07:26:44 AM
Quote from: SirJax on February 07, 2020, 07:11:49 AM
If this was anywhere outside it the USA it would be a roundabout.
The USA has tons of roundabouts, it's a commonly implemented modern traffic feature. Not sure what you're on about
Ummm, no.
Compared to its size, the US doesn't have many roundabouts.
In the US there are approximately 5,000 roundabouts. Compare that to say Britain, which is waay smaller geographically and has about one fifth of the population and where there are over 10,000. In France 1 of every 45 intersections is a roundabout. In the US it's 1 out of 1,118.
So no, the US doesn't have many roundabouts - in relative terms. And that's a shame because they're very good and efficient at controlling traffic flow, especially with regards to two-lane intersections like the one discussed here.
The one issue we have in the US with respect to roundabouts is that there seem to be quite a few people who don't know how to use them properly, although that in and of itself is a result of their relative paucity. I think the most common mistake people make here is that they stop or slow down more than necessary just before they get into the roundabout, even if there is no vehicle approaching from the left.
As of 2015, the UK apparently had about 25,000 roundabouts. But roundabouts have their own issues, of course.
https://www.theguardian.com/cities/2015/oct/19/traffic-lights-roundabouts-way-out
I hadn't realized it's gotten quite up that high in the UK. On a per capita basis that is 25 times more roundabouts than the US.
I think the optimal number is probably somewhere inbetween. Maybe not 1 out of 45 as in France but certainly a lot more than 1 out of the current 1,118 in the USA.
Hopefully the more that are added the more people will also learn how to use them properly so that their benefit can be fully maximized. In the article you linked there is a study cited from KSU which claims that roundabouts reduce delays by 65% compared to traffic signaled intersections.
Quote from: SirJax on February 09, 2020, 12:49:05 PM
Quote from: Adam White on February 09, 2020, 06:47:23 AM
Quote from: SirJax on February 08, 2020, 08:02:31 AM
Quote from: Peter Griffin on February 07, 2020, 07:26:44 AM
Quote from: SirJax on February 07, 2020, 07:11:49 AM
If this was anywhere outside it the USA it would be a roundabout.
The USA has tons of roundabouts, it's a commonly implemented modern traffic feature. Not sure what you're on about
Ummm, no.
Compared to its size, the US doesn't have many roundabouts.
In the US there are approximately 5,000 roundabouts. Compare that to say Britain, which is waay smaller geographically and has about one fifth of the population and where there are over 10,000. In France 1 of every 45 intersections is a roundabout. In the US it's 1 out of 1,118.
So no, the US doesn't have many roundabouts - in relative terms. And that's a shame because they're very good and efficient at controlling traffic flow, especially with regards to two-lane intersections like the one discussed here.
The one issue we have in the US with respect to roundabouts is that there seem to be quite a few people who don't know how to use them properly, although that in and of itself is a result of their relative paucity. I think the most common mistake people make here is that they stop or slow down more than necessary just before they get into the roundabout, even if there is no vehicle approaching from the left.
As of 2015, the UK apparently had about 25,000 roundabouts. But roundabouts have their own issues, of course.
https://www.theguardian.com/cities/2015/oct/19/traffic-lights-roundabouts-way-out
I hadn't realized it's gotten quite up that high in the UK. On a per capita basis that is 25 times more roundabouts than the US.
I think the optimal number is probably somewhere inbetween. Maybe not 1 out of 45 as in France but certainly a lot more than 1 out of the current 1,118 in the USA.
Hopefully the more that are added the more people will also learn how to use them properly so that their benefit can be fully maximized. In the article you linked there is a study cited from KSU which claims that roundabouts reduce delays by 65% compared to traffic signaled intersections.
I think they concern me more as a cyclist. I think they can work really well - though I would be surprised if roundabouts with traffic lights were any more efficient than a normal intersection with traffic lights.