I'll like roundabouts as soon as someone comes up with a good way to fix the resource starvation problem (i.e., if there's a constant stream of traffic from your left, you'll never get a turn to go).
Roundabout’s are only suitable for intersections where traffic on each route is roughly equal. In NZ I can’t recall seeing roundabouts built where the routes are not roughly equal in size and volume. In saying that, mistakes happen and things change and there are roundabouts that suffer this sometimes.
> I'll like roundabouts as soon as someone comes up with a good way to fix the resource starvation problem (i.e., if there's a constant stream of traffic from your left, you'll never get a turn to go).
> Doesn't that give up a lot of the benefits of having a roundabout at all, as opposed to having a regular signal-controlled intersection?
If congestion occurs only at "peak" time(s) (e.g., rush hour(s)) then that's when you are stop/go with signals, whereas the rest of the time the signals are set to the 'traditional' roundabout way (perhaps flashing yellow?), then it could still mean that for (say) 20 hours of the day you still have the benefits (plus also during weekends).
And even during peak time(s) you probably get reduced collision rates and collision intensities.
