Homer Watson and Ottawa Three Lane Roundabouts

[danbrotherston]

Is there anything to the thought that someone entering a roundabout shortly after leaving a highway has difficulty adjusting speeds downwards? With a few exceptions, most of the other exits in the area typically end in a stoplight, a T-intersection or both.

Many offramps in the region simply merge onto an existing road, you might suggest that this is a "stop light" eventually, but it still results in drivers carrying on at 80-90 km/h for quite a distance on urban roads.  I don't think this is any different, and is likely to be quite a bit better than those cases.