elevated cycle path is less of an issue with the roundabouts, especially the smaller ones, since a car has to pretty much stop anyway to enter, and pretty sizable steering input to negotiate and exit.
elevated path is very common (essential?) at light controlled cross roads, especially those witha clear through route. even in holland there’s far too many drivers that will floor it on yellow – the ramp makes them think twice. they are big, long gradual ramps though, so no issue to most vehicles, unlike the UK residential area bumps with much steeper ramps that killed steps on backs of ambulances etc.