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Motorcycle lane splitting and lane filtering slowly being accepted in the U.S.

Added May 30, 2019
Motorcycle being ridden between two lanes of traffic

There’s good news for motorcycle riders in an environment increasingly full of distracted drivers. The motorcycle practices of lane splitting and lane filtering are gaining traction across the U.S.

What’s lane splitting?

For the uninitiated, lane splitting is a traffic practice where motorcycles pass between cars and trucks moving in the same direction to get through areas with dense or heavy traffic. In lane splitting, riders are allowed to pass through moving traffic on the white dividing lines at higher speeds. 

Lane splitting helps reduce congestion in urban areas suffering from high traffic density and long commute times. This is a common practice in many urbanized European and Asian countries, especially where motorcycles make up a larger portion of the traffic mix.

Lane splitting and lane filtering are sometimes used interchangeably, but they aren’t the same, especially when it comes to legislation.

What’s lane filtering?

Lane filtering involves a motorcycle slowly moving between lanes of traffic involving stopped or slow-moving vehicles at speeds that don’t exceed 15 mph. 

This is usually conducted at stoplights. This allows the rider to move to the front of the line for safer and easier takeoffs from an intersection.

Is lane splitting legal? 

In the U.S., lane splitting and lane filtering aren’t permitted—with the current exception of California and Utah. Four other states—Connecticut, Massachusetts, Oregon, and Texas—have bills currently in the legislative process.

Lane splitting in California

Lane splitting in California has a long history of toleration. While there’s no legal or legislative ruling on this practice, it’s been accepted that lane splitting is beneficial to traffic flow. 

Lane splitting has been unofficially condoned by the California Highway Patrol (CHP) for decades. In 2013, CHP issued guidelines for the proper use of this technique, which didn’t have legal backing and were ultimately removed from public circulation. 

Finally, in 2016, California legislature passed a law (A.B. 51) that authorized CHP to develop guidelines for legal lane splitting without officially allowing lane splitting.

Lane filtering rolls into Utah

Recently, Utah passed a law (H.B. 149) that legalizes lane filtering. Under the law, motorcycles traveling no faster than 15 mph can filter between stopped vehicles moving in the same direction. Further, the law, which went into effect on May 14, states this is only permitted on roads with a speed limit of 45 mph or less.

As written, the law has a sunset clause that states that unless further action is taken by the legislature to extend the practice, it will end on July 1, 2022. Both advocates and opponents of lane splitting and lane filtering will continue to watch the Utah experiment.

Safety issues

Motorcycle safety is the foremost concern for all motorcycle riders. There’s a healthy debate about whether lane splitting and filtering is safe for motorcycle riders and other road users.

The idea of allowing lane splitting and filtering is to reduce the risk of a motorcycle rider being hit from behind in heavy stop-and-go traffic. With cell phone use and other driver distractions on the rise, this is becoming more of a hazard.

Legal lane splitting/filtering affords motorcyclists an escape route in those situations. However, widespread use of lane splitting and filtering isn’t in place and will require significant law enforcement involvement and public education to make it a safe and recognized practice. 

The non-motorcycle riding public will also need to be educated on this subject and accept that they, too, benefit from reduced congestion. 

And just because legal lane splitting and filtering is an option in two states, motorcyclists in those states aren’t required to perform such maneuvers.

Proper lane splitting/filtering

Lane splitting or filtering shouldn’t be confused with reckless riding. Weaving in and out of traffic at high speeds isn’t allowed in any fashion anywhere, and should never be a part of your riding routine. 

Ringing endorsement

The American Motorcyclist Association (AMA) endorses lane splitting, citing the long-term success in California and a study by University of California Berkeley researchers showing the practice enhances motorcycle safety.

For riders like us, this will be an interesting development to watch. Keep in mind state laws and guidelines when taking your road trips. Don’t assume. Find out the answer first and then ride accordingly.

Till next time, ride safe! 

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