http://www.theage.com.au/national/c...tourbus-ban-in-city-centre-20080918-4jep.html I came off just under a month ago, doing 50kmh on Burwood H/way. Nothing serious apart from a bruised knee, and replacement of handlebar. But to have the bike just GO from under me with absolutely zero warning is scary. Sure I've heard of others slipping on tram tracks, but I figured that's simply cos they were riding parallel and/or accelerating. I was doing neither when I went down. Mine was front wheel first. After my fall, I chatted with some others, apparently it happens to cyclists ALL the time! ...obviously they have far skinnier tyres than powered bikes. Then, reading the above article, I just feel something has to be done with these tracks! Their presence in the middle of the road is an inherent source of danger to motorists. I've heard, not seen admittedly, even CARS actually lose control on these slippery tracks, so its not just the two-wheeled variety that's affected.