Forensic Engineers and Consultants

Archive: Collisions

Stan

“What’s up man, you want to hit up the Longbranch tonight? Cool, I’ll get up with you later.” Ronnie ends the call and heads out on a beer run. After the last sip of Gin, Stan finishes up one of his many fan letters, drops it in the box, and starts to get ready for the night. “What’s good?” It was Ronnie’s cousin Squirrel on the line. “You okay with Stan going tonight?”  “Yeah,” Squirrel says, “he’s got a sweet ride… we’ll let him drive! He let me drive that GT all last week, that thing is hot!” “Sounds like a plan! Let me go dude, bout to head in and get some cold beer.”

911, what’s the nature of your emergency?

Yes, there is an overturned car, looks like maybe a Mustang, a red Mustang. I’m just off Highway 9. It’s down an embankment…I can see two people laying on the ground and one person still in the car. The two people on the ground are moving, but the one in the car looks bad!

Police and EMS are on the way ma’am.

Okay, I have my emergency flashers on, can you stay on the phone with me until they get here… it’s really dark and cold. I’m scared.

I’m here ma’am, try to calm down. Can you give me a description of the people involved, maybe what they’re wearing?

The one that’s lying near the car is wearing red jeans with a white T-shirt, and it looks like he has a black and green high-top sneaker on his left foot only, just a sock on the other. The other one out of the car has regular blue jeans on, and a green shirt with boots. It’s hard for me to see the guy in the car… looks like he has on jeans and some kind of black concert T-shit, I can see tour dates and make out the word “Shady”. Hey, the police are here, so I’ll hang up now.

A lot is at stake here and we have quite a dilemma, three occupants involved in a single vehicle crash with one fatality and no idea who the driver is. The stakes begin to rise immediately, at the scene of the crash. What’s documented or not documented will affect the outcome of this case. It will affect the outcome of this case when everyone has gathered with suit and tie, when hands are placed on the Bible, and the truth is sworn to be told.

We’ve talked about proper collision scene documentation several times, but this time let’s talk about a few ways we can build a case like this and possibly identify beyond a reasonable doubt who was driving at the time of the wreck. Read More

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The End of Daylight-Saving Time Leads to More Vehicle and Pedestrian Collisions

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Daylight saving (DST) ends on November 2, 2025, and with it the clocks will “fall back” an hour.  While it is nice to gain an hour of sleep, the end of daylight-saving time also comes with a increase of vehicle crashes, injuries, and pedestrian fatalities. This phenomenon prompts the question: What is so dangerous about being a pedestrian at night? Read More

The Middle Car Blues

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Maybe you, a loved one, or even a client, have been in the unfortunate position, no pun intended, of being the creamy center in a three-car wreck. Odds are high that you have not, but those odds are also equally high that if you have, you will be shown as one of the contributors to the collision. In other words, the wreck will likely be your fault-and possibly the fault of the person behind you as well. Sure, the wreck could be the fault of the middle and third cars… that wreck would look something like this; Read More

The Alphabet Soup of Expert Certifications

When consulting as an expert witness, having certifications can assist in establishing your credibility and qualifications.  If you’ve perused the Curriculum Vitaes of the experts at The Warren Group, Inc., you may have seen some of these letters trailing after our names.  What do they mean and what organizations grant them?  The following is a sampling of some of the certifications our experts have acquired: Read More

Springing Forward into the Dangers of Fatigued Driving

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Every spring, the United States shifts the clocks forward one hour creating an extra hour of light in the evenings. However, this shift may be linked to a slight increase in fatal traffic accidents immediately following the time change. It is theorized that the increase in fatal traffic accidents is due to two things: people losing an hour of sleep and the low illumination conditions of morning commuters. Read More

Why Pedestrians Overestimate Their Visibility: A Dive into the Psychology of Road Safety

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When we step out onto the road as pedestrians, most of us assume that we are easily visible to oncoming drivers. However, research shows that pedestrians frequently overestimate their visibility, especially at night or in low-light conditions. This overconfidence can lead to dangerous situations, contributing to accidents and fatalities. Understanding why pedestrians overestimate their visibility is crucial for improving road safety and preventing accidents. Read More

Human Factors and Halloween Hazards: Trip and Falls

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Trick-or-treating is a fun and festive activity, but it comes with certain hazards that can pose risks to children and even adults. In addition to vehicle and pedestrian collisions and accidents, tripping and falling while trick-or-treating is a common hazard, especially for children navigating unfamiliar and dimly lit areas at night.

Children and adults can face tripping hazards on walkways while trick-or-treating.

Tripping hazards can be mitigated through compliance with walkway safety standards such as ASTM F 1637-2021: Standard Practice for Safe Walking Surfaces. ASTM F1637 is a standard that provides Read More

Human Factors and Halloween Hazards: Vehicle/Pedestrian Collisions

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Trick-or-treating is a fun and festive activity, but it comes with certain hazards that can pose risks to children and even adults. In addition to trip and fall hazards while trick-or-treating, there is also an increased risk of vehicle/pedestrian collisions due to the increased pedestrian activity in the roadway at night.

Child trick or treating during Halloween in the roadway.

At night, there are two significant problems facing drivers that contribute to pedestrian/vehicle collisions: Read More

What’s Up Doc? Collision Scene Documentation & Techniques

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A proper collision scene documentation, lovingly referred to as a scene doc, will make or break the investigation… guaranteed! While not necessarily all inclusive, here are a few evidence collection / documentation techniques that have served me well over the years.

Some, if not most, collision scene evidence is short lived, and tire marks Read More

Civil Twilight Pedestrian Collision: A Case Study

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Susan, a 45-year-old runner, was jogging in the early morning approximately an hour before sunrise, also known as “civil twilight.” Civil twilight occurs both before sunrise and after sunset when the sun is below the horizon and the sky is partially illuminated. Susan was wearing dark athletic clothing and grey tennis shoes for her morning run. She was running on the sidewalk in a suburban area and began to cross the four-lane road at an unmarked crosswalk. Read More

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