DataDan
Mama says he's bona fide
I found no estimate of the number of lane-splitters in the report or even overall motorcycle traffic volume in the experimental areas.DataDan alluded to the biggest potential problem with this study on the first page of this thread. If the study did not control for increased numbers of riders when lane splitting was allowed, then it's negligent at best and maybe even deliberately dishonest. If more people are riding motorcycles because they can get there faster without violating the law, then of course there are going to be more motorcycle crashes! I haven't seen or heard anything about whether or not this factor was controlled for.
The other huge problem is that there was no mention of the severity of the accidents, just the number. Lanesplitting accidents are likely to occur at lower speeds, and while any accident on a highway can be fatal for a motorcyclist, it's more likely for one of us to get up and walk away. But if traffic is stopped and someone slams into you doing 60+ MPH, your ticket is punched unless you are very lucky. I'd take a 12% higher chance of an accident that I will likely survive any day!
The people who pushed this through are probably drivers with an ax to grind. Maybe they cut off a rider and got their mirrors punched one too many times.
From the report: Accidents in which motorcycle practiced lane splitting are in the order of 1,650 minor accidents, 161 serious accidents and 16 fatal accidents. So, lethality was roughly 0.9%. I didn't find the same figures for non-splitting crashes in the report.
In California, lethality in all motorcycle crashes in recent years has been 3.1%. In the 2012-2013 California study, lane-splitting crash lethality was 1.2%. In fact, the lesser severity of lane-splitting crashes, especially when speed differential was < 15mph, was a factor emphasized in the run up to passage of AB 51.
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