Lane Splitting and Texas Law in Houston, TX What Section 545.0605 Actually Says

The section Texas added in 2023

Transportation Code §545.0605 was added by House Bill 4122 and took effect September 1, 2023. It states that a motorcycle operator is entitled to full use of a lane and that two motorcycles may be operated side by side in a single lane. It then sets three prohibitions in the same breath: no more than two motorcycles abreast in one lane, no operation between lanes of traffic moving in the same direction, and no passing a motor vehicle within the same lane the vehicle occupies. Subsection (b) exempts a police officer operating a motorcycle in the discharge of official duties. Reading the whole section matters, because the part granting a full lane and the part restricting movement between lanes are the same law.

A rider is entitled to the whole lane

The full-lane language answers a common insurer framing: that a rider hugging one side of a lane was somehow occupying space belonging to a car. Under §545.0605 the lane belongs to the motorcycle. Lane position within that lane can shift for pavement seams, standing water, sun glare, or a driver drifting over the stripe, and none of those adjustments puts a rider outside the lane. Transportation Code §545.060(a) applies to every driver on a marked multilane roadway: stay as nearly as practical entirely within a single lane, and do not move from the lane until the movement can be made safely. That duty rests on the vehicle changing position, which is a fact question rather than an assumption about the smaller vehicle.

What the statewide contributing-factor tables record

TxDOT's 2024 crash contributing factor table lists 50,287 Texas crashes with the factor of changing lane when unsafe and 42,588 with failure to drive in a single lane, alongside 81,101 attributed to driver inattention. Those are statewide counts across all vehicle types and all road users, recorded by investigating officers on crash reports, and processed by TxDOT as of April 9, 2025. They are not findings about any collision, and they say nothing about who was responsible in a particular case. What they show is that lane-position disputes are common enough that a rider should expect the question and should have contemporaneous facts rather than a reconstructed guess.

Houston lane geometry and the High Injury Network

The City of Houston's Vision Zero High Injury Network layer maps 906 half-mile roadway segments where traffic deaths and serious injuries concentrated between 2014 and 2018, using a threshold of at least 4.5 severe crashes per half-mile segment, drawing on the TxDOT Crash Records Information System. The network covers local, major, and frontage roads and excludes major highways. Gessner accounts for 13 of those segments, running past Spring Branch. That designation covers every road user, not motorcycles specifically, and it decides nothing. It does explain why a cross street, a direction of travel, and a nearest signal belong in a written note the same day, since a corridor name alone cannot locate a camera or a driveway.

A traffic citation is not a percentage of responsibility

Whether a rider was cited, and whether a citation was later dismissed, is not the same question as apportionment. Civil Practice and Remedies Code §33.003 requires the trier of fact to determine the percentage of responsibility in whole numbers for each claimant, defendant, settling person, and designated responsible third party. Section 33.001 bars recovery when a claimant's percentage is greater than 50 percent, and §33.012(a) reduces damages by the percentage assigned when the bar does not apply. An adjuster naming a percentage during a phone call has stated a position. Section 33.013 adds that a liable defendant generally pays only its own percentage unless that percentage exceeds 50 percent.

What can be organized before seeking advice

Useful items include the Texas Peace Officer's Crash Report number, the responding agency, photographs of both sides of the motorcycle and of the other vehicle, the exact lane and direction, any dash-camera footage, and the names and vantage points of witnesses. Note whether traffic was stopped, slowing, or moving, and describe the movement seen rather than characterizing anyone as at fault. This page is general information about Texas statutes and public crash data, not legal advice about any collision. Individualized advice should come from the attorney who advertises on this site or another attorney the reader chooses.