I'm not the other guy, but I'd agree here. Australian cities across the board are not very safe for cycling, the clear exception being Canberra. Although it's rather ironic that Canberra, the safest cycle city with dedicated bike only lanes to every corner of the metropolitan area, is the only city in which I've been hospitalised from "Car v Bike" injuries! I'd still rate Sydney as the worst overall, with Adelaide having the most individually dangerous roads, and Perth being too far away to care.
And of course, this has just about as much to do with Dubai's stunning achievment in engineering as people getting stabbed in Melbourne. My, what an emotional thread this is!