A trailer turning right does not stay in its lane. Its back wheels cut inside the path the cab takes, so the space beside and behind a turning truck is not empty. It is about to be filled.
On Sunday evening, at about 6:20 p.m., a tractor-trailer was eastbound on the East Freeway feeder road in the 14300 block, near Beltway 8, and as it attempted to turn right onto Redmond Street a motorcycle struck the semi-trailer; the rider was pronounced dead at the scene, the truck driver remained and cooperated with investigators, and the Harris County Sheriff’s Office Vehicular Crimes Division is investigating with the case open (KPRC). The report does not say which direction the motorcycle was traveling, which part of the trailer it struck, or whether the trailer carried a guard along its side. No one is named here, and nothing on this page decides that crash. It is here for the pattern, which the Docket has run from the front and from the flank but never from the turn.
Why the space fills. Engineers call it offtracking: a vehicle turns and its rear wheels “do not follow the same path as its front wheels.” In a low-speed turn “the wheels of the rearmost trailer axle follow a path several feet inside the path of the tractor steering axle,” and a Federal Highway Administration truck size and weight analysis put a number on it: a tractor pulling a 53-foot semitrailer through a standard 90-degree right turn on a 42-foot radius, at walking speed, offtracks 16.12 feet and sweeps a path 24.12 feet wide (FHWA). That is why a trucker takes a right turn with the rear of the rig close to the curb and swings wide only as he completes the turn, not as he starts it, and it is why the federal model manual that commercial driver tests are built on says what it says: “Because of wide turning and offtracking, large vehicles can hit other vehicles or objects during turns.” The rules it gives are plain. “Turn slowly to give yourself and others more time to avoid problems.” If the turn cannot be made without swinging into another lane, “turn wide as you complete the turn,” and “[k]eep the rear of your vehicle close to the curb.” “Don’t turn wide to the left as you start the turn,” because “[a] following driver may think you are turning left and try to pass you on the right” (Model Commercial Driver’s License Manual). A car on the right, or a motorcycle closing from behind, can be sitting in a space the trailer is about to occupy, and Offtracking is the entry on how that sweep is measured after the fact.
What the side does. Between the landing gear and the rear wheels the side of a van trailer is open, and it sits high enough off the road that a car’s hood can pass under it, which is the whole meaning of underride. Federal law requires a rear impact guard on nearly every trailer and semitrailer with a gross vehicle weight rating of 10,000 pounds or more built since January 26, 1998 (49 C.F.R. § 393.86), the bar Underride describes. Along the side it requires nothing. The agency said so in its own words in 2023, “There are currently no Federal requirements for side underride guards on trailers,” and in the same notice estimated the cost among the people in cars and light trucks alone: an annual average of 89 deaths and 409 serious injuries of light passenger vehicle occupants who went under the side of a tractor-trailer (NHTSA), the gap Guard set out. A rider is not in that count and has less than a car to begin with: no roof to lose and no cage at all, which is what The Cage explains, so the trailer’s edge meets the head and the chest directly, at whatever speed the bike was carrying, the way The Fixed Object describes a stop taken against something that does not give.
What the law asks. That is the turn. Texas tells a driver turning right to “make both the approach and the turn as closely as practicable to the right-hand curb or edge of the roadway” (Transportation Code Section 545.101), and to “signal continuously for not less than the last 100 feet of movement of the vehicle before the turn” (Section 545.104). It also tells the driver behind that he “may pass to the right of another vehicle only if conditions permit safely passing to the right” and the vehicle ahead “is making or about to make a left turn,” and only on a roadway wide enough for two or more lines of moving vehicles in each direction (Section 545.057). A wide swing has to answer to the first rule; a vehicle that went up the inside has to answer to the third; and neither answer ends the question, because whether the driver used the mirror a turning trailer makes necessary, whether the signal was on, whether the vehicle alongside was lit and seen, and whether a side guard would have kept a body out of the wheels are separate questions for the evidence. Texas divides the fault among everyone a crash involved rather than ending it at the first vehicle that touched the trailer, barring a claimant only when his share passes half (Civil Practice and Remedies Code Section 33.001), which is Comparative Fault.
What the proof looks like. The truck’s own cameras, forward and side, and its engine and position data, which fix the speed of the turn and where the tractor was when it began. The signal, which the cab’s module sometimes logs. The point of contact on the trailer, which says whether the vehicle was beside the truck or coming up behind it. The trailer’s lights and markings. The mirror the driver had and the one he used. And the carrier’s training file on turns, because the manual’s rules are the floor the licensing test is built on.
No one is named here, and nothing on this page decides a particular crash. A dispatch keeps the record of what the engineering and the law say, next to the pages on the truck that crosses your path and the guard the law has not yet required.
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.
