3 ms·
Why not just use a roundabout? This design seems odd to move traffic onto the wrong side of the road and make people come to a complete stop? Over-complex?
by mattlondon 2y ago
Why not just use a roundabout?
This design seems odd to move traffic onto the wrong side of the road and make people come to a complete stop? Over-complex?
- Gannon6790 2y agodiverging diamonds handle much larger volumes than round a bouts. plus they're typically useful for interstate highway interchanges with large collector roads, so you can't really expect the high speed highway traffic to slow down and maneuver around a circle.
- pixl97 2y agolarge traffic flows from one direction turning left will dominate a roundabout blocking access for everyone else. Especially at rush hour, you'll get people moving bumper to bumper leaving a city blocking traffic in all other directions. I ran into this in Indiana just north of Indianapolis. They have a few of the suburbs with large amounts of roundabouts. One of them was at a large industrial complex where everyone evidently left at 5. I swear 15 minutes of cars left there turning left and stopping the rest of the traffic.
- was_a_dev 2y agoLike all traffic infrastructure, there's variants that work for such situation. Roundabouts can have bypass lanes, a protected (right) turn that allievates that issue. In the UK you see these, and also designs where the through traffic bypasses the roundabout