5 ms·

There's one more rule: traffic on the circular road has priority.

sjwright 12y ago
That rule already applies. It's no different on a circular road or roundabout; traffic already on a road has priority over traffic turning onto it.
- nhaehnle 12y ago
  "Traffic already on a road" is a concept that does not apply in this scenario, as all traffic is already on a road in all cases. There is no a priori way to distinguish between the circular road and the roads leading towards it. In countries where you drive on the right, I believe the typical default rule is that traffic coming from the right has priority. In roundabouts, this would mean that traffic on the roundabout must wait for those joining it. However, the rule is reversed for roundabouts. (This definitely applies to Germany, and I suspect that it applies in most other countries as well.)
  - deleted 12y ago
    [deleted]
- watwut 12y ago
  I guess that depends where you live. That thing is intersection like any other and the one on the right has a priority. So, unless there is a sign, the car about to enter the circular road should go first. And yes, all roundabouts have signs in here.
  - sjwright 12y ago
    I live in Australia, but I've also driven in the UK and parts of Europe. Any roundabout I've used has worked in the same way -- as you approach the roundabout, you must give way to vehicles already on the roundabout. Relevant to the circular road with T-intersection analogy, I'm reading the Wikipedia page[0] on T-intersections and I must admit the concept that "vehicles on the right always have the right-of-way" makes absolutely no sense whatsoever. But I suppose that weird rule would screw up the circular road metaphor. [0] https://en.wikipedia.org/wiki/Three-way_junction#Right-of-way https://en.wikipedia.org/wiki/Three-way_junction#Right-of-wa...
CWuestefeld 12y ago
There's one more rule: traffic on the circular road has priority. This is how it would work in a sane system, but they don't always work this way. I can think of several examples in New Jersey, particularly around Flemington, where the circle manages the intersection of two roads having different importance. In these cases, the important road is given the right-of-way all the way through the circle, and those coming around the circle from the lesser road are required to yield.

That rule already applies. It's no different on a circular road or roundabout; traffic already on a road has priority over traffic turning onto it.

nhaehnle 12y ago
"Traffic already on a road" is a concept that does not apply in this scenario, as all traffic is already on a road in all cases. There is no a priori way to distinguish between the circular road and the roads leading towards it. In countries where you drive on the right, I believe the typical default rule is that traffic coming from the right has priority. In roundabouts, this would mean that traffic on the roundabout must wait for those joining it. However, the rule is reversed for roundabouts. (This definitely applies to Germany, and I suspect that it applies in most other countries as well.)
- deleted 12y ago
  [deleted]
watwut 12y ago
I guess that depends where you live. That thing is intersection like any other and the one on the right has a priority. So, unless there is a sign, the car about to enter the circular road should go first. And yes, all roundabouts have signs in here.
- sjwright 12y ago
  I live in Australia, but I've also driven in the UK and parts of Europe. Any roundabout I've used has worked in the same way -- as you approach the roundabout, you must give way to vehicles already on the roundabout. Relevant to the circular road with T-intersection analogy, I'm reading the Wikipedia page[0] on T-intersections and I must admit the concept that "vehicles on the right always have the right-of-way" makes absolutely no sense whatsoever. But I suppose that weird rule would screw up the circular road metaphor. [0] https://en.wikipedia.org/wiki/Three-way_junction#Right-of-way https://en.wikipedia.org/wiki/Three-way_junction#Right-of-wa...

CWuestefeld 12y ago

There's one more rule: traffic on the circular road has priority. This is how it would work in a sane system, but they don't always work this way. I can think of several examples in New Jersey, particularly around Flemington, where the circle manages the intersection of two roads having different importance. In these cases, the important road is given the right-of-way all the way through the circle, and those coming around the circle from the lesser road are required to yield.