Most crashes are argued over who had the right of way. A rear-end crash is argued over the room between two cars, and whether the driver behind kept enough of it to stop.
The count. Federal regulators counted an average of 1.75 million rear-end crashes a year from 2016 through 2019, in their rule on automatic emergency braking (National Highway Traffic Safety Administration). It is also the crash people are quickest to call minor.
What the law says. Texas measures the gap by the stop, not in car lengths. A driver following another vehicle must “maintain an assured clear distance between the two vehicles so that, considering the speed of the vehicles, traffic, and the conditions of the highway, the operator can safely stop without colliding with the preceding vehicle” (Transportation Code Section 545.062). Enough room at thirty on a dry street is not enough at seventy in the rain.
What the law does with it. Reviewing the same rule in its earlier form, the Texas Supreme Court noted that a statute requiring a driver to proceed safely “imposes on the driver a duty of reasonable care, thus precluding a negligence per se instruction,” and upheld the refusal of that instruction (Louisiana-Pacific Corp. v. Knighten). So a rear-end crash is not the red-light case Negligence Per Se describes. A jury decides whether the room was safe, which is why the driver behind is usually at fault and not always: a sudden stop or a dead brake light can move part of the fault forward, which is Comparative Fault.
What the body says. The neck is where the missing room gets paid for. In a car struck from behind, the seat drives the body forward before the head can follow, and the neck bends into the shape The S-Curve describes. In cadaver studies that shape goes past what the medical literature calls “the physiologic limits of spinal mobility,” and it can injure the neck’s facet joints, ligaments, nerve roots, discs and muscles (StatPearls). None of that shows on a bumper, and neither does the speed change the body absorbed, which is Delta-V. Before You Call answers the adjuster who points at the bumper.
No one is named here, and nothing on this page decides a particular crash. The crash everyone calls minor is decided by two things no bumper shows: the room the driver behind was required to keep, and what the neck in front went through when it was not kept.
Dispatch is the Night Docket’s news strand: what happened on Texas roads and in Texas courts, reported from credible outlets and agency releases, with no names and no conclusions about open investigations, then connected to the entries that explain the science and the law. General information, not legal advice.
