Dellortoman
Hero member
- Location
- Tasmania, Australia
Seems there's some debate as to whether the biker was speeding, so let's try to settle it.
It's a simple matter to work out his average speed while in the frame of the video. The distance he travelled from crossing the white line at the threshold of the intersection to the point of impact is pretty damn close to 10m. He covered that distance in 0.7 seconds (the first part of the video appears to be in real time). That works out to 51kph.
However, he was hard on the brakes for pretty much the whole distance, so maybe he was doing 60 when he entered the frame and 40 when he hit the car. I think the speed limit there is 60. At least it was when I lived there. So, in my estimation, the probability is that he wasn't exceeding the speed limit, at least while in camera view (who knows what he was doing further back up the road?). But whether he was going too fast for the conditions is another question. Given the way things turned out, it's hard to argue that he was travelling at a safe speed. Hopefully he'll learn something from the experience and ride a little more defensively in future.
The above is the best I could do with the stop watch on my phone and scaling the distance across the ground off google maps. There may be a 10% error in my measurements. I'm sure the police crash investigation guys could do it better by actually measuring the distance on the ground and using a better timing device. But even with better accuracy, I think he'd be unlucky to cop a charge for speeding.
It's a simple matter to work out his average speed while in the frame of the video. The distance he travelled from crossing the white line at the threshold of the intersection to the point of impact is pretty damn close to 10m. He covered that distance in 0.7 seconds (the first part of the video appears to be in real time). That works out to 51kph.
However, he was hard on the brakes for pretty much the whole distance, so maybe he was doing 60 when he entered the frame and 40 when he hit the car. I think the speed limit there is 60. At least it was when I lived there. So, in my estimation, the probability is that he wasn't exceeding the speed limit, at least while in camera view (who knows what he was doing further back up the road?). But whether he was going too fast for the conditions is another question. Given the way things turned out, it's hard to argue that he was travelling at a safe speed. Hopefully he'll learn something from the experience and ride a little more defensively in future.
The above is the best I could do with the stop watch on my phone and scaling the distance across the ground off google maps. There may be a 10% error in my measurements. I'm sure the police crash investigation guys could do it better by actually measuring the distance on the ground and using a better timing device. But even with better accuracy, I think he'd be unlucky to cop a charge for speeding.