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Author Topic: Knowing what a roundabout really is  (Read 2117 times)

kalvado

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Re: Knowing what a roundabout really is
« Reply #25 on: January 01, 2022, 10:46:24 AM »

^ Depends on your definition of "easy".  Sitting at a red signal for a minute or two isn't "easy" for many people.  And it's well documented that, all else being equal, a roundabout results in less overall delay than a "good ol' intersection".
"Easy navigation" specifically.
And delay is certainly an advantage over the traffic light,  but keep in mind roundabout should compete with 2-way stops mostly. Trying to extend the concept to traffic light - especially busy traffic light - range is why they fail way too often.
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tradephoric

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Re: Knowing what a roundabout really is
« Reply #26 on: January 01, 2022, 11:41:11 AM »

^ Depends on your definition of "easy".  Sitting at a red signal for a minute or two isn't "easy" for many people.  And it's well documented that, all else being equal, a roundabout results in less overall delay than a "good ol' intersection".


There is a limit to how much traffic a roundabout can handle before it fails and experiences more delay than a standard traffic signal.  Roundabouts work well in some scenarios and fail in others.  YUMBLtv concluded that roundabouts are not the best option along high density roads in Cityskylines and interestingly his conclusion can be applied to real life roads as well.

Roundabouts are NOT as Good as you Think
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hbelkins

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Re: Knowing what a roundabout really is
« Reply #27 on: January 01, 2022, 02:52:44 PM »

^ Depends on your definition of "easy".  Sitting at a red signal for a minute or two isn't "easy" for many people.  And it's well documented that, all else being equal, a roundabout results in less overall delay than a "good ol' intersection".
"Easy navigation" specifically.
And delay is certainly an advantage over the traffic light,  but keep in mind roundabout should compete with 2-way stops mostly. Trying to extend the concept to traffic light - especially busy traffic light - range is why they fail way too often.

It's been my experience that most in these parts are installed to replace four-way stops, not two-way when there's a clear through route in the intersection.
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kalvado

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Re: Knowing what a roundabout really is
« Reply #28 on: January 01, 2022, 02:58:09 PM »

^ Depends on your definition of "easy".  Sitting at a red signal for a minute or two isn't "easy" for many people.  And it's well documented that, all else being equal, a roundabout results in less overall delay than a "good ol' intersection".
"Easy navigation" specifically.
And delay is certainly an advantage over the traffic light,  but keep in mind roundabout should compete with 2-way stops mostly. Trying to extend the concept to traffic light - especially busy traffic light - range is why they fail way too often.

It's been my experience that most in these parts are installed to replace four-way stops, not two-way when there's a clear through route in the intersection.
We have more than a few replacing - often pretty busy -  traffic lights. What can go wrong, you may wonder....
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