Forensic Engineers and Consultants

Tag Archive: collision matrix

  1. The Collision Reconstruction Matrix – The Human

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    Murder, suicide, deceit, and intrigue… car crashes? You bet! In our next installment of the 9-Cell Collision Matrix let us dive a little deeper into the glue that binds all this together, the human element.

    Photo by Mark Turner

    Let’s begin with the most basic human element at the root cause of car wrecks, our old friend inattention. Inattention… a vast word that encompasses many lackadaisical conditions. The daydreaming 16-year-old in math class, the radio knob turner, the back seat talker, the quarter pounder with cheese eater, and perhaps the most offensive, the cell phone user. All very dangerous behind the wheel, and one very dangerous to your future… as it turns out, you will always need good math skills… ask me how I know? Driving is of course a divided attention endeavor, (more…)

  2. The Vehicle (EDR)

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    In a previous blog post, we began to delve a little deeper into the vehicle aspect of the 9-Cell Collision Matrix by taking a look at tires. Let’s now take a closer look at the very diverse and interesting topic of Event Data Recorder (EDR) data. (more…)

  3. The Vehicle – Tires

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    In a previous blog post, I gave an overall introduction to the 9-Cell Collision Matrix as an investigative tool used in collision reconstruction. Now let’s focus in a little at each element.

    They are called car wrecks, after all…so let’s start with a more comprehensive look at the vehicle component of the matrix.  This review of the vehicle before, during, and after the collision will highlight a few important factors but is not meant to be all-inclusive.  So, let’s get started! (more…)

  4. The Collision Reconstruction Matrix

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    It’s mid-January, the high today is 28 degrees with lows in the teens as the Carolinas are in the grip of a Canadian cold front and I’m on call tonight. The phone rings at 3:00 am; yes Sir, three cars with two fatalities, I-85 northbound, yes Sir, on the way. Despite the hurdles that lie in front of me cold, fatigue, the loss of life – my job with the South Carolina Highway Patrol Multi-Disciplinary Accident Investigation Team (MAIT) is to investigate, document, and ultimately prosecute chargeable collisions. To properly reconstruct this collision, three essential and distinct categories must be investigated and documented in order to provide a well-founded explanation of the series of events prior to, during, and after the collision regarding the human, the vehicle, and the environment; this investigative technique is known as the 9-cell collision reconstruction matrix. (more…)

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