T-Bone collisions

People talk about head-on collisions as being the worst – and with good reason – but head-on crashes are by no means the only kind of car collision that carries with it a high risk of injury or death. Another type of collision that ranks among the most dangers is what is commonly referred to as a “T-bone” accident – the side-impact crash. Named for the popular steak, a T-bone crash is when one vehicle is struck in the side by a second vehicle at a perpendicular angle. Picture a car moving through an intersection when another vehicle enters the intersection on the crossing roadway, entering the intersection from one side or the other of the first car and striking the first vehicle full in the side. Most common at intersections, T-bone crashes can be deadly.

T-Bone Accidents are a Leading Cause of Traffic Fatalities

Traffic accidents can be deadly affairs – they cost more than 36,000 Americans their lives in 2019. More than half of traffic deaths involving passenger vehicle occupants happen in head-on collisions – full frontal impacts, nose to nose. However, more than a quarter of all traffic fatalities in crashes involving passenger vehicles occur in side-impact collisions – in other words, the classic T-bone accident. When a vehicle hits another vehicle from the side, the struck vehicle does not have the crumple zone that provides protection in frontal collisions. Cars are designed to absorb impacts from the front and from the rear, using the trunk for rear-end accidents and the engine compartment, among other features, for front-end accidents to help absorb the force of the collision. When it comes to side-impact collisions, no such crumple zone exists to prevent the exterior of the vehicle from being pushed into the passenger compartment by the force of the collision. One study contends that vehicles struck from the front have five times the energy absorption as vehicles provide in a side impact. The lack of crumple zones on the side of vehicles simply adds to the lethality of side-impact collisions.

Side-impact crashes – commonly referred to as “T-bone” collisions – are among the most dangerous of car accidents for occupants of the vehicle being T-boned. A T-bone accident is one in which one vehicle strikes another straight into the second vehicle’s side at a perpendicular angle, hence the popular nickname. The car being struck in the side forms the cross of the “T,” while the striking vehicle forms the stem. T-bone accidents frequently are the result of one vehicle or the other running a stop sign or running the red light at a traffic signal. No matter how they occur, side-impact crashes can have devastating consequences for the occupants of the car on the receiving end of the side impact.

Side-Impact Collisions are Especially Dangerous

According to federal statistics, more than half of all traffic deaths from accidents involving passenger vehicles result from head-on collisions. That makes sense given the impact speeds involved in head-on crashes. Much more surprising, though, is that a quarter of all traffic fatalities occur in side-impact crashes – or T-bone accidents. Unfortunately, the lethality of side-impact collisions also makes sense. Many cars still on the road do not have side airbags, and a car hit from the side does not enjoy the protection of the front-end automobile architecture that has reduced the lethality of head-on collisions. There is no crumple zone on the side of a car. Side airbags were introduced in the late 1980s and early 1990s by Chrysler and Volvo on some models, and have become common in all passenger vehicles since the early 2000s, but they are not mandated by the government except for front-seat side air bags.

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