Tractor-Trailer Merges Into Lane Causing Accident

This case involves an accident between a car and a larger commercial vehicle. The plaintiff, whose vehicle was traveling in a lane of one highway, encountered a tractor-trailer that was driving in a lane of another highway and was merging into a third roadway with the plaintiff. The tractor-trailer overcompensated on the embankment and veered into the plaintiff’s lane as they were merging and clipped the plaintiff’s vehicle on the driver’s side. This caused the vehicle to slide into a cement barrier on the plaintiff’s right. All survived the accident, but the plaintiff suffered traumatic injuries.

Question(s) For Expert Witness

  • 1. How did the speed of the vehicles, combined with the embankment, influence the accident?

Expert Witness Response E-000685

As an accident reconstructionist, when looking at both the speed and the embankment, they probably played factors in the accident. As a biomechanical engineer I understand dynamics and kinematics and can reconstruct motions during an accident. I have performed analyses to determine damage consistency between vehicles, the order of impacts in vehicle collisions, injury causation, as well as other accident reconstruction-related issues. As such, I feel like I could comment on the accident.

Expert Witness Response E-004726

In order to understand most of the factors involved, I would need a lot of detailed information, such as the date of the accident, the location of the accident, court and case number, and style of the case. From the information collected, a reconstruction of the case could be researched and the roles of the different factors could be better understood. I am a registered engineer in numerous states and an experienced accident reconstructionist. My research, engineering, and consulting backgrounds have provided me with experiences in machine design, vibration analysis, vehicle dynamics, accident reconstruction (including cars, trucks, commercial vehicles, motorcycles, bicycles, and pedestrians), and data acquisition. In addition, I am the author of several conferences and journal papers.


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