Forensic Engineers and Consultants

Tag Archive: vehicle collision reconstruction

  1. Heavy Truck Tires: Their Various Roles and The Importance of Inspections

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    No one would argue that a tractor trailer is the same as an automobile (be it a truck, car, or SUV). The first thing that would come to mind is sheer size. Tractor trailers are larger in size and weight, and no doubt for good reason, these heavy trucks are designed to carry tens of thousands of pound of load.   An empty tractor with a semi-trailer comes in at around 35,000 lbs. A regular midsize car tips the scales at roughly 3,500 lbs.  Lots of parts of a tractor trailer are important, so to say this one or that one rates more important would be impossible (beyond the driver of course); however, a tractor trailer’s tires are definitely at the top of the list (more…)

  2. When Going Left is My Right

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    The lines on the roadway determine the right-of-way. Did you know a passing zone could limit your right-of-way?

    Passing a vehicle traveling in the same direction on a two-lane roadway should be done with great caution. Completing the pass without colliding with the vehicle being passed, other vehicles approaching from the opposing direction, and without losing control and leaving the roadway are vital. There are rules to passing that people forget; some are laws, others are just common sense. Let us take a look at the laws and what sometimes slips by people that can cause an unsafe pass. State laws may differ, so consider these for South Carolina roadways. (more…)

  3. “Introduction to Event Data Recorders (EDRs)” LIVE Webinar | October 22nd, 11am EDT

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    Accidents often have devastating consequences. Join WARREN’s Senior Collision Reconstructionist and President of S.C.A.R.S., South Carolina Association of Reconstruction Specialists, Aaron Duncan for an exclusive webinar on “Introduction to Event Data Recorders.”

    Learn from an expert how the information stored in this valuable tool can be utilized to help get to the truth of your loss.  Information like:

    • Change in Velocity
    • Vehicle Speed
    • Service Braking
    • Steering Angle
    • Safety Belt Usage
    • Seat Occupancy
    • Engine RPMs
    • Engine Trouble Codes
    • PLUS, many case studies to consider.

    (more…)

  4. Why Visit the Collision Scene?

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    If you are a collision investigator, a visit to the collision scene is something you want to do. No matter how much time has passed since the crash compared to the review of the case, the information that can be gleaned from walking through the area is valuable. We aren’t always given the option, but it is very beneficial, here is why. (more…)

  5. The Pressure to Keep Rolling (Part 2)

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    One of the first safety concerns for your vehicle should be your tires. The tires on your vehicle or trailer maintain contact with the roadway and assist you in getting to your destination safely. So how do you know that your tires are proper for your vehicle, are being well-maintained, and beyond the obvious threat of tire failure, why is this important to know? (more…)

  6. The Pressure to Keep Rolling – Part 1

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    Over my years of law enforcement, crash investigation, and collision reconstruction I have come to become more and more particular about my tires. I have watched people purchase tires from these “used tire stores” and when I buy my tires I can understand why; quality tires are expensive. The question of how old is that tire and how was it serviced before it ended up for sale is a huge concern. (more…)

  7. Right Turn Only

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    In my 25 years of investigating collisions and traffic related incidents, one thing I have noticed repeatedly is that right turns are considerably better than lefts. I know it is obvious and sometimes seems a little petty; however, when it comes to the safety of your family, it is a big deal. Since I am currently in the process of teaching my second child how to drive, I am harping on vehicle safety a lot and this is one of the many practices I teach. I have instilled in my children (and my wife has picked up on it as well) that they should always plan out their route and, in doing so, make right turns instead of lefts whenever possible. The “Right Turn Only” practice will make your travels safer.

    (more…)

  8. Piecing it Together…Traced Evidence

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    In the field of forensic investigations of traffic collisions, it can be repeated over and over that little things matter. It’s the details that align the facts to describe the event and answer the questions about the crash. Sometimes those details are simple, and they are often overlooked. The damage sustained by a vehicle involved in an accident tells a reconstructionist a lot. Your collision reconstruction could benefit from mapping the damage profiles of the involved vehicle(s) to assist in answering questions about the incident. (more…)

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