Lane Splitting
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The American Motorcyclist Association places significant emphasis on motorcyclei operator and passenger safety. On every type of public roadway, motorcyclists encounter challenges from other roadway users and are constantly vigilant to unsafe conditions around them.

Perhaps one of the most dangerous situations for any on-highway motorcyclist is being caught in congested traffic, where stop-and-go vehicles, distracted and inattentive vehicle operators, and environmental conditions pose an increased risk of physical contact with another vehicle or hazard. Even minor contact under such conditions can be disastrous for motorcyclists.

The Hurt Report1, the most comprehensive motorcycle crash causation study to date, noted that, “Moderate or heavy traffic was the situation at 59.2 percent of the accidents [studied].” Reducing a motorcyclist’s exposure to vehicles that are frequently accelerating and decelerating on congested roadways can be one way to reduce rear-end collisions for those most vulnerable in traffic.

In many countries (excluding the United States), lane splittingii and filteringiii are normal practices for motorcyclists. Particularly in the highly urbanized areas of Europe and Asia, motorcycle and scooter operators are expected to pass between

Recent events in the U.S. have renewed motorcyclists’ interest in lane splitting. Therefore, the AMA has prepared this position statement to aid in understanding this issue and assist motorcyclists in deciding whether to support efforts to permit lane splitting in their state.

The University of California at Berkeley published a report in May 2015 that concludes that motorcyclists who split lanes in heavy traffic are significantly less likely to be struck from behind by other motorists, are less likely to suffer head or torso injuries, and are less likely to sustain fatal injuries in a crash2.

One of the recommendations in the National Agenda for Motorcycle Safety (NAMS)3 is: “Study the safety implications of lane splitting.” In support of this recommendation, the report states:

“A motorcycle’s narrow width can allow it to pass between lanes of stopped or slow-moving cars on roadways where the lanes are wide enough to offer an adequate gap. This option can provide an escape route for motorcyclists who would otherwise be trapped or struck from behind. There is evidence (Hurt, 1981) that traveling between lanes of stopped or slow-moving cars (i.e., lane splitting) on multiple-lane roads (such as interstate highways) slightly reduces crash frequency compared with staying within the lane and moving with other traffic.

“Although lane splitting is allowed in just a few areas of the United States, notably California, it appears to be worthy of further study because it offers a means of reducing congestion in addition to possible safety benefits. It is widely used in many other countries.”

In a statement issued by the Motorcycle Industry Council in 2011 and revised in 20144, the trade group states: “In full consideration of the risks and benefits of lane splitting, the Motorcycle Industry Council supports state laws that allow lane splitting under reasonable restrictions.”

For decades, California has been the only state to permit lane splitting. While not specifically permitted or prohibited in the California Vehicle Code, lane splitting authority comes from the California Highway Patrol. In early 2013, the CHP published lane splitting guidelines5 for the first time. While the guidelines do not carry the force of law, they provide clear indicators under which a motorcyclist might be cited for unsafe or imprudent behavior.

Legislatively, there has been state-level activity on lane splitting, although to date no bill has been enacted.

Passing legislation to permit lane splitting may be the easiest part of the process. Significant effort would subsequently be required to educate the law enforcement community, officials and administrators within state departments of transportation and public safety, prosecutors, the judiciary and the general motoring public on the benefits to those groups and motorcyclists to make lane splitting safe for everyone. Using public service announcements and campaigns, traditional broadcast and print media, social media, and other forms of information sharing could assist in highlighting the safety, congestion reduction, and other benefits of lane splitting.

Taking into consideration that the vast majority of the motoring public does not ride motorcycles, we are certain non-motorcyclists do not understand the risks and the benefits of lane splitting to the riding community. Motorists in California being the exception, we believe it would take many years of experience and substantial and ongoing public information campaigns to educate non-motorcyclists to accept motorcyclists passing them between lanes of traffic.

The AMA endorses rider responsibility and actions that make roadways safer for motorcyclists. While research and evidence suggest that lane splitting may reduce a motorcyclist’s risk exposure somewhat, we are cautious to issue a blanket endorsement supporting the practice. In particular, experience has taught us that the legislative process and the implementation of new laws are fraught with uncertainty. A straightforward lane splitting bill may easily be amended with provisions that the AMA and the motorcycling community would find unacceptable. Provisions such as mandatory helmet use in an adult-choice state or mandatory minimum medical insurance coverage provisions would quickly poison an otherwise well-intentioned effort.

Motorcyclists who oppose lane splitting should remember that it is optional in California. Permitting lane splitting is not the same as requiring it, so those opposed to the practice should consider the desires of other motorcyclists who believe they would benefit from it. Lane splitting is an issue of choice.

Even with the best intentions and organization, inappropriate behavior by motorcyclists can quickly garner a large negative response from the motoring public. With the easy availability of video systems and the Internet, a few postings of public roadway stunting, such as speeding past motorists stuck in traffic, could sour a legitimate campaign to approve lane splitting in a state. While the AMA has long advocated responsible riding practices and does not condone any behavior that violates the rules of the road, we caution that the future of lane splitting in any state could be derailed by the actions of a few irresponsible motorcyclists. Advocates of lane splitting should be prepared to counter any negative responses they receive from legislators and those responsible for implementing lane splitting laws.

Given the ongoing success of lane splitting in California and the recent enthusiasm for lane splitting and/or filtering in other states, the AMA endorses these practices and will assist groups and individuals working to bring legal lane splitting and/or filtering to their states.
 
As a former Southern California resident I too would lane split on the freeway only when traffic was stopped or barely moving to keep the airflow going over my Harley. I usually limited my lane splitting to using the 2-3 foot space between the double double yellow lines/braille dots that define the carpool lane from the #1 lane, then when the dashed-line carpool exit/entry came up I'd fall back in line. There will always be that ONE idiot, like the guy in the big F250 in the #1 lane on the Century Freeway (105) in rush hour traffic who saw me coming in his left mirror, and began squeezing me into the car in the carpool lane to my left just as I passed his left rear tire. I saw the smirk on his face in that big power outside mirror of his the instant before my right handgrip impacted it, and tore it completely off his door. I heard the mirror crash onto the pavement and a "F***!!" as I rode away.

When I moved to Hawaii I intentionally left my Harley in the care & custody of a friend, because (a) it wasn't going to pass HI's rigorous annual vehicle inspection, (b) it gives me something to ride when I visit my son, and (c) traffic in Honolulu is the 3RD worst in the nation, and with the heat and humidity a water cooled bike is the way to go. When I got here I bought a Honda CBR new, and sold it a week ago for my '06 R3. :)
 
I lived in California for over 50 years. I grew up splitting lanes. The traffic got worse and worse, the sixties weren't to bad, today traffic is unbelievable. I am fine with splitting lanes and think it should be legal but I realize that its not a great idea as far as safety goes. In the event that something does happen no matter whose fault it is the bike rider will lose. With that in mind one has to be on his toes when splitting lanes and also needs to have some good luck.
 
If you are passing a car in the same lane in a dangerous way or reckless or what ever you want to call it you will get a ticket and that is code enforceable.

Then the citation would be careless or reckless driving but cannot or ever could have been "lane splitting" - there are plenty of those who lane-split (myself included) who are anything but careless.
You are essentially making a statement here that ANY act of lane-splitting constitutes reckless or careless driving - it certainly can be but that is purely incidental to the actual lane splitting act itself.
If someone is driving recklessly then that is why they would be cited, regardless of what else they are doing.
But there is no mandate that says that x mph above the rate of traffic flow constitutes 'reckless' driving in a legal sense and some other behaviour would have to be the key.
You should take look at the BARF forum from here in the Bay Area - actual CHP cops participate in these discussions.
 
Agree 100% it would be what the cop writes it up as then up to the person cited to argue that in court, when I lived in Los Angeles you had to lane split or a 25mile trip lasted three hours:D would not think a Judge would look favorably upon someone passing in the same lane at a high speed.
 
Lane splitting is a wonderful perc for us here in the California traffic. For me it took me a while to feel comfortable enough to lane split and I would only do it on my bonneville T-100 during commutes to the Bay Area. It all comes down to experienced ridding and for me I started out slowly with the Rocket and sometimes I still decide not to lane split under certain conditions. Although I do get through traffic a lot better it can be nerve racking and quoting one of our members "ride like nobody can see you and the ones that can are trying to kill you".
 
The other thing that helps your own personal safety is that there are ALWAYS other bikes doing it - I'm perfectly happy to pull in and let someone else be the 'target man' and follow in behind :D
You have to avoid any temptation to 'stick with them' however, if their speed differential is excessive.
It's fundamental also that you are expecting someone to do something dumb so major awareness in play.
The other thing that is more recent are the advent of the Express/Toll lanes - these are free for bikes and so no need to split when you can use those.
Those around the Bay Area (where they have them) move pretty good so that is a HUGE difference.
But still many of the particularly nasty congested routes (like 680N from Milpitas to Pleasanton) are still wanting there - the S. bound side however DOES have Express lane.

I do find for the most part that the majority of cars are quite courteous and often will actually make extra space for you.
But of course there are the others on phones, applying make-up etc that are just not paying attention to anything outside their own little World.

Don't get me started on drivers using phones ........................ :mad:
 
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