El Paso Functional Medicine
I hope you have enjoyed our blog posts on various health, nutritional and injury related topics. Please don't hesitate in calling us or myself if you have questions when the need to seek care arises. Call the office or myself. Office 915-850-0900 - Cell 915-540-8444 Great Regards. Dr. J

The Value of Skid Marks for Auto Accident Cases

1,408

Not only do tires play a vital role in the performance of your car or truck, but a lot of information can be garnered about what happened before, during, and after a crash. Tire marks will be explored by us and, generally, what those marks tell us.

 

First let us discuss where the marks come from. Skid marks are created by the extreme thermal relationship of a tire against the roadway surface during extreme stresses put on the tire, a simpler way to say this is, a tire will “mark” when it nears, or exceeds, the limits of its relationship with the roadway. These marks occur because the oils in the roadway and/or the tire(s) are brought to the surface and “melted or burnt” into the roadway. If a tire is heated enough since the surface of the tire will have changed, it’ll be obvious, it is going to have a spot and obvious abrasions.

 

Kinds of Skid Marks.

There are three specific kinds of marks we will talk about, these are the most typical four wheeled car and light duty truck marks. (Other vehicles, such as motorcycles, have different specific marks).

 

Light to Dark or Dark to Light

 

All marks can be placed into two categories when referencing the management of the vehicle which made them. Light to dark marks (in the direction the vehicle was traveling) support a vehicle making the marks through some kind of deceleration (extra points if you wanted to read “negative acceleration”). Dark to light marks (again, in the direction the vehicle was traveling) support a vehicle making the marks through some form of acceleration, usually excessive wheel spin.

 

Darker from the Middle, Darker on the Outsides, or Uniform

Marks that are darker in the center indicate a tire that’s overinflated, conversely marks that are darker on the outside edges indicate a tire which is underinflated. Indicate a tire.

ABS Versus Regular Marks

 

ABS (Anti-lock Brake System) marks are lighter than conventional marks and have more tire tread definition in them, Non-ABS marks rarely have tread definition inside them. ABS marks are also shorter when compared to non ABS marks from a vehicle traveling in precisely the speed.

 

What else can skid marks tell us?

 

As you have already found skid marks may tell us about the tires inflation, ABS or non-ABS braking, and direction of travel. Marks can also tell us something when and in which the decision to brake occurred. This is the most under-utilized and under explored aspect even more so in speed crashes. Some basic calculations can be made, using a variety of aspects of the skid marks, to determine where the driver made the decision.

Why is this so important? Consider the following illustration.

 

 width=

 

This drawing is a timeless teaching example used to demonstrate the value of skid marks. Consider this situation, the blue car says he had the green light and was hit at the intersection. The car says so that that he braked hard he also had the light and saw the car. There isn’t any other evidence or witnesses.

 

Now the student would be asked to calculate the position of the cars once the decision to brake was created using the beginning of the skid marks, ultimately this would place the vehicles in the place labeled 1.

 

Now the apparent problem with the red car’s situation now that we have used the skid marks to ascertain where he determined to brake, a construction blocks his view of the blue car (position 1 for both vehicles). This begs the question as to why did he decide then to brake? The answer, the light was red for the red car and the driver was braking for traffic lighting, not the blue car making the red car culpable in this situation as the physical evidence affirms the “at fault” party.

 

Another valuable piece of advice is that rubber is biodegradable and there are naturally occurring nitrogen based bacteria that “eat” rubber. These bacteria are competitive and will eat rubber in most environments, therefore if you’re trying to determine causality and the “at fault” party, it is in your best interest to take pictures of the roadway whenever possible. Skid marks are gone in a brief amount of time.

 

Skid marks are a valuable item of evidence and a great tool for determining many facets in a collision; it is extremely important none of them are overlooked or underestimated.

 

The scope of our information is limited to chiropractic and spinal injuries and conditions. To discuss options on the subject matter, please feel free to ask Dr. Jimenez or contact us at 915-850-0900Green-Call-Now-Button-24H-150x150-2.png

 

Additional Topics: Weakened Ligaments After Whiplash

 

Whiplash is a commonly reported injury after an individual has been involved in an automobile accident. During an auto accident, the sheer force of the impact often causes the head and neck of the victim to jerk abruptly, back-and-forth, causing damage to the complex structures surrounding the cervical spine. Chiropractic care is a safe and effective, alternative treatment option utilized to help decrease the symptoms of whiplash.

blog picture of cartoon paperboy big news

 

TRENDING TOPIC: EXTRA EXTRA: New PUSH 24/7®️ Fitness Center

 

 

Post Disclaimer

Professional Scope of Practice *

The information herein on "The Value of Skid Marks for Auto Accident Cases" is not intended to replace a one-on-one relationship with a qualified health care professional, or licensed physician, and is not medical advice. We encourage you to make your own healthcare decisions based on your research and partnership with a qualified healthcare professional.

Blog Information & Scope Discussions

Our information scope is limited to Chiropractic, musculoskeletal, physical medicines, wellness, contributing etiological viscerosomatic disturbances within clinical presentations, associated somatovisceral reflex clinical dynamics, subluxation complexes, sensitive health issues, and/or functional medicine articles, topics, and discussions.

We provide and present clinical collaboration with specialists from a wide array of disciplines. Each specialist is governed by their professional scope of practice and their jurisdiction of licensure. We use functional health & wellness protocols to treat and support care for the injuries or disorders of the musculoskeletal system.

Our videos, posts, topics, subjects, and insights cover clinical matters, issues, and topics that relate to and support, directly or indirectly, our clinical scope of practice.*

Our office has made a reasonable attempt to provide supportive citations and has identified the relevant research study or studies supporting our posts. We provide copies of supporting research studies available to regulatory boards and the public upon request.

We understand that we cover matters that require an additional explanation of how it may assist in a particular care plan or treatment protocol; therefore, to further discuss the subject matter above, please feel free to ask Dr. Alex Jimenez DC or contact us at 915-850-0900.

We are here to help you and your family.

Blessings

Dr. Alex Jimenez DC, MSACP, CCST, IFMCP*, CIFM*, ATN*

email: coach@elpasofunctionalmedicine.com

Licensed in: Texas & New Mexico*

Dr. Alex Jimenez DC, MSACP, CIFM*, IFMCP*, ATN*, CCST
My Digital Business Card