Forensic Engineers and Consultants

Tag Archive: The Warren Group

  1. Steam Explosions…Spectacular Expansions, Spectacular Losses

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    I’ve heard some people say that the term steam explosion is a malaprop because explosions involve combustion.  However, if you look up the definition of explosion, you get this: “a large-scale, rapid, or spectacular expansion or bursting out or forth.” (Thanks, Meriam-Webster!!)  If you’ve ever witnessed a steam explosion, you’ll agree that it is a MOST appropriate term!

    Steam explosions occur when water or other liquid undergoes a sudden phase change (more…)

  2. The 9-Cell Collision Matrix – The Environment

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    “Was a dark stormy night as the train rattled on…” Anybody? 1985? Scarecrow?  Come on… this was when Cougar was still a Mellencamp! Ok… it was called Grandma’s Theme… you’ll have to look that one up… but as I sat down to write this blog on the environment, that song kept running though my head. If you look it up, it will have a similar effect… just a little warning.

    In our last installment of the 9-Cell Collision Matrix let’s travel down the wet, slippery slope of environmental factors that can contribute to car crashes, and maybe take a closer look at the things around us, at or near our crash scene that may reveal some important clues. (more…)

  3. Surprise Slip and Slides  

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    Falls were the number one cause of preventable non-fatal injuries and the number two cause of preventable deaths in the US in 2019 (CDC and NEISS data). Slip and falls occur when there is an unexpected loss of traction between a person’s foot and the walking surface.  Slip and falls are common and can occur in any setting where people walk, including homes, workplaces, and public areas. Slip and falls can result in serious injuries, particularly for older adults.

    The human gait cycle consists of four phases: (more…)

  4. Playgrounds are not all Fun and Games

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    Play is an essential part of childhood development as children learn through play. Public playgrounds provide an environment for children to develop physical, behavioral, and cognitive skills. Though an essential aspect of childhood development, public play areas can also provide an opportunity for serious injuries and fatalities. In 2020, 120,829 children sustained serious injuries (more…)

  5. What You Don’t See Can Hurt You-Undercarriage Crashes

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    A 43-year-old man driving his small vehicle northbound in the right lane of a rural two-lane paved road, was on his way to his favorite hunting spot in the early morning. He had two passengers with him—one in his front passenger seat and one in his back left seat. It was dark outside, and the weather was clear and dry. Along the rural two-lane road were large wooded private properties with no ambient lighting illuminating the roadway. Further up the road, a log truck began to turn left onto the road. Unable to entirely turn left in one fluid movement, the log truck (more…)

  6. Differences in Slip Resistance of Materials used in Walking Surfaces

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    As an experienced safety consultant, I’m called on to investigate a wide range of premises liability incidents. In any slip and fall investigation it is important to assess the type of walking surface material involved and its corresponding slip resistance.

    Slip resistance is a critical factor to consider when choosing the right flooring material for any space. It’s especially important in areas that are prone to moisture, spills, or other hazards that could make floors slippery and dangerous. A slip-resistant surface can help reduce the risk of (more…)

  7. The Importance of Crane Wire Rope Lubrication

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    Wire ropes are critical components of cranes and play a crucial role in ensuring the safety and efficiency of crane operations. To extend the life of these ropes and maintain their strength and performance, it is essential to regularly lubricate them. (more…)

  8. One of the Most Amazing Compounds Around – Water?!?!

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    Around Christmas day of 2022, a mass of very cold air settled in the deep south/southeastern United States (where I live).  It remained below freezing for over 24 hours.  That is very unusual down here.  There was a spate of burst pipes all over the area.  Why?  Water is one of a very few compounds that expands when it freezes…by approximately 9%!!  If a volume of water is sealed off in a section of piping, and that water freezes, it is likely the pipe will rupture. Then, when it warms up again and thaws, liquid water will leave the pipe for an adventure!! (more…)

  9. The Difficult Task of Avoiding Pedestrians While Driving at Night

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    An alarming 6,516 pedestrians were killed, and 54,769 pedestrians were injured as a result of traffic crashes in 2020 (NHTSA, 2022). A large majority (77%) of these pedestrian fatalities occurred in low luminance conditions such as nighttime while only 20% occurred in daylight (NHTSA, 2022). This dramatic difference between pedestrian fatalities during the night and day is seen even when controlling for driver fatigue and alcohol consumption (Owens & Sivak, 1996). This phenomenon prompts the question as what is so dangerous about being a pedestrian at night? (more…)

  10. Treating Painted Walking Surfaces for Improved Slip Resistance

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    As an experienced safety consultant, I am called on to investigate a wide range of premises liability incidents. One common premises liability incident that often results in serious injury is a fall on a painted walking surface.

    Slip and fall accidents can be devastating, causing serious injuries and even death. To prevent these accidents, it is important to ensure that walking surfaces, including painted ones, are slip-resistant. In this article, we will discuss the various methods for treating painted walking surfaces to make them slip-resistant. (more…)

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