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Old 11-29-2020, 04:49 PM   #16
DannoXYZ
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Join Date: Apr 2006
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Motorcycles: CB125T, EX250E, Ninja250R race bike, CBR250R(MC19), CBR250RR(MC22), VF500F, CBR600RR, VFR750F
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Originally Posted by brichter View Post
I’ve seen a few here where the entrance to the roundabout is indeed a stop sign, that defeats the whole purpose.
Damn scared U.S. drivers!!! I do multiple laps around roundabouts while they wait for entire thing to be clear before entering....

Even in heavy traffic, roundabout would still get more cars/minute across than any other method. Not roundabout's fault if you wait.

Teaching AI cars to navigate roundabouts:

youtu.be/OtlJNomXb2s

Last edited by DannoXYZ; 11-30-2020 at 01:35 PM..
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Old 11-30-2020, 12:52 PM   #17
Alan_Hepburn
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Originally Posted by DannoXYZ View Post
hell yeah! I love this roundabouts! Especially double-lane ones!

What's wrong with cloverleaf exchanges? No lights or waiting needed! Tully used to be great! Then they added lights! Horrible wait now.
I agree! And then they put in "No Right Turn On Red" signs where there is absolutely NO possibility of cross-traffic - such as west-bound Tully to north-bound 101, and east-bound Tully to south-bound 101.
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Old 11-30-2020, 01:34 PM   #18
DannoXYZ
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Join Date: Apr 2006
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Motorcycles: CB125T, EX250E, Ninja250R race bike, CBR250R(MC19), CBR250RR(MC22), VF500F, CBR600RR, VFR750F
Name: Danno
I suspect it has to do with numbers of Asian female drivers in that area (like my mum). Have to dumb down driving procedure for lowest common denominator. I can't wait for full takeover of self-driving cars to remove idiots from road. Then have tiered licencing like they have for bikes in civilised places. You need to pass skills test before you can get licence to manually operate vehicle.

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Old 12-01-2020, 02:52 PM   #19
ScottRAB
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DDI Safety Unproven

DDIs are too new to have an extensive safety record to rely on. My biggest concern is that traffic engineers know people run red lights, so while they have eliminated right angle crashes and left into oncoming crashes, what has been introduced is a head on crash if someone runs the red light. Modern roundabouts can be used with diverging diamond patterns and eliminate potential head on crashes.


Diverge-abouts
I-49 @ 155th Street, Belton, MO: https://goo.gl/maps/gF3xKf8e6vbb8E3m6
Video: https://www.youtube.com/watch?v=JVGy...M-BnvH1FK7BChi
US-50 @ MO-291S, Lee’s Summit, MO: https://goo.gl/maps/oJweVEDnfxJ2G6Qw9
Video: https://www.youtube.com/watch?v=3Qs_...1yiB0J&index=6
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