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xkcd #2932: Driving PSA
(imgs.xkcd.com)
Alt text:
This PSA brought to you by several would-be assassins who tried to wave me in front of speeding cars in the last month and who will have to try harder next time.
That second picture of yours is just a normal roundabout. Try making one of the roads pass directly through it. And don't change the signaling.
I've noticed that the tram line cuts the traffic in 3 points. What is the speed of that street? Anyway, the tram line is clearly signed in a way that can be noticed on the photo. And every car there is making a weird curve, nobody is speeding anyway.
You'll have to be specific, all five of the roads that enter this roundabout are different, none actually continue through it. I think the maximum speed limit in the area is 60km/h though.
Edit: Also, the weird looking building in the first picture? That's the Royal Melbourne Hospital. There is A Lot going on at this roundabout. Though I guess as far as it not being "bad" it is probably the best intersection they could have built for this location. The cycle length if it were a signalised intersection would be insane.