I don't see where in that study it shows what you claim. They specifically say: > This study is not without limitations. The primary limitation is our lack of

I don't see where in that study it shows what you claim. They specifically say: > This study is not without limitations. The primary limitation is our lack of exposure data. To estimate how the risk of being involved in a collision changes when motorcyclists chose to lane- split, we would require information on both the lane-splitting and non-lane-splitting riding that is done by some identifiable sample of motorcyclists. The collection of these data is fraught with problems, and the current study did not attempt to collect such data. The current data set cannot be used to compare the collision risks for lane-splitting or non-lane-splitting riders.