Yes. Several car accidents involve someone changing lanes without looking and colliding into another vehicle, bicyclist, or pedestrian. Victims may then sue the at-fault driver for negligence per se. In order to prevail in a lawsuit, the victim (plaintiff) needs to demonstrate by a preponderance of the evidence that: The defendant violated a traffic law (by making the illegal lane change); this traffic law was meant to protect people like the plaintiff (anyone sharing the road or sidewalks); the plaintiff's injuries were a result of the defendant's violation; and the injuries resulted in money damages. The goal of a plaintiff's Colorado personal injury lawyer is to recover as much compensatory damages as possible to pay for the plaintiff's doctor's bills for bodily injury, lost earnings, property damage (if any), and pain and suffering. In the vast majority of motor vehicle crash cases, the parties settle out of court, and the defendant's insurance company agrees to a payout.