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Truck Driver Fatigue: What Is It and How To Prevent It

September 20, 2023 by Steven M. Gursten

What is truck driver fatigue?

Truck driver fatigue is a serious threat to public safety. It is a disturbingly common cause of fatal truck crashes, yet it is 100% preventable.

In this blog post, I will discuss what it is, how dangerous it is, how the hours-of-service rules were enacted to combat it and tips for preventing it.

What Is Truck Driver Fatigue?

Truck driver fatigue is typically caused by inadequate sleep, by working too many hours, or by driving while sick. This is one of the most dangerous impairments a truck driver can experience.

The Federal Motor Carrier Safety Administration (FMCSA), the federal agency responsible for policing and regulating truckers and trucking companies to ensure they operate safely on the nation’s roadways, describes truck driver fatigue as the “result of physical or mental exertion that impairs performance.”

Studies have found it to be a more potent driving impairment than the influence of drugs or alcohol — yet a wide number of truck drivers bend the rules to maximize their time behind the wheel.

A serious threat to public safety

The U.S. Transportation Secretary has observed that “[n]early 4,000 people die in large truck crashes each year and driver fatigue is a leading factor.”

The Federal Motor Carrier Safety Administration (FMCSA)’s “Large Truck and Bus Crash Facts” study for 2020, which was published in September 2022 (and contains the most-to-date data available) found that fatigue was a “driver impairment-related factor” in fatal truck crashes between 2018 and 2020 with the following frequency:

  • Fatigue was a factor for 62 of 4,832 drivers of large trucks involved in fatal crashes in 2018
  • Fatigue was a factor for 72 of 4,977 drivers of large trucks involved in fatal crashes in 2019
  • Fatigue was a factor for 68 of 4,777 drivers of large trucks involved in fatal crashes in 2020

(Source: FMCSA, Large Truck and Bus Crash Facts 2020, published September 2022, People, “Table 31. Drivers of Large Trucks in Fatal Crashes by Distraction-Related and Impairment-Related Factors, 2018-2020”)

How To Prevent Truck Driver Fatigue

In an effort to prevent truck driver fatigue, the Federal Motor Carrier Safety Administration (FMCSA) created hours-of-service rules which regulate the amount of time each workday that truck drivers can spend driving and/or otherwise performing tasks that qualify as being “on-duty.”

For example, under 49 CFR 395.3, drivers are limited to 60 hours of compensated work in a seven-day period or 70 hours in an eight-day period.

In explaining the need for hours-of-service rules, the U.S. Transportation Secretary explained that one of the significant challenges with combating truck driver fatigue is that in addition to impairing truckers’ ability to drive, fatigue impairs their ability to assess and evaluate their own fatigue levels:

“That fatigue leads drivers to have slower reaction times and a reduced ability to assess situations quickly. One of the most dangerous elements of fatigue is how quickly it can sneak up on vehicle operators, be they car drivers or truck drivers. The research revealed that truck drivers (like most people) often can’t assess their own fatigue levels accurately and are therefore unaware that their performance has degraded. Too often, fatigued drivers fail to notice that they are drifting between lanes.”

For the truckers, breaking the truck driver hours-of-service rules can mean the difference between putting food on the table, or being next in the unemployment line.

Helping truck accident lawyers better understand hours-of-service regulations

This is a hot topic right now for the trucking industry and truck accident lawyers, and for a very good reason.

A tired truck driver is as impaired as an intoxicated driver and fatigue is one of the most common causes of truck accidents, both in Michigan and across the country.

As stated above, preventing fatigue starts and ends with trucking companies and truck drivers following the hours-of-service rules established by the Federal Motor Carrier Safety Administration (FMSCA).

Found at 49 CFR 395.3 and 395.8, they are some of the most important federal regulations for lawyers to remember in any truck crash case.

Knowledge of hours-of-service regulations, coupled with a careful study of a truck driver’s record of duty status as reflected in the data from his or her “electronic logging device” (which replaced written log books in December 2017) can reveal fatigue.

Truck Driver Fatigue Accident Lawyer Tip: Driving Doesn’t Necessarily Mean Working

Drivers are limited to a total of 14 hours of work in a single “on-duty” period. This type of non-driving activity could include all time:

  • Waiting to be dispatched at a terminal
  • Doing a CDL pre-trip inspection
  • Loading and unloading
  • Repairing the truck
  • Waiting for the truck to be repaired
  • Submitting to a DOT roadside inspection

Virtually any work performed on behalf of a motor carrier should be added to a driver’s 14-hour daily work limit.

However, even work performed for another company or organization will count toward a driver’s on-duty period – even if it’s completely unrelated to the trucking industry.

Under 49 CFR 395.2(9), “on- duty” time means performing “any compensated work for a person who is not a motor carrier.”

This is confirmed by the official interpretation of 49 CFR 395.2 which appears on the “Guidance Q & A” page of the FMCSA’s website:

  • Question 11: “Must non-transportation-related work for a motor carrier be recorded as on-duty time?”
  • Guidance: “Yes. All work for a motor carrier, whether compensated or not, must be recorded as on-duty time. The term “work” as used in the definition of “on-duty time” in 49 CFR 395.2 of the Federal Motor Carrier Safety Regulations (FMCSRs) is not limited to driving or other non-transportation-related employment.”

Injured in a truck accident? Call Michigan Auto Law now!

If you were injured in a truck accident, call now (800) 968-1001 for a free consultation with one of our experienced truck accident lawyers. There is no cost or obligation. You can also visit our contact page or use the chat feature on our website.

Michigan Auto Law is Michigan’s largest and most successful law firm that specializes exclusively in helping people who have been injured in auto accidents.

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Unlike other law firms, our attorneys are never too busy to promptly return phone calls and answer questions. 

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More importantly, this client-focused approach leads to better and faster settlements for our clients. Michigan Auto Law has recovered more million-dollar settlements and trial verdicts for motor vehicle accidents than any other lawyer or law firm in Michigan. We’ve also recovered the highest ever reported car accident and truck accident settlement in the state.

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Truck Driver Fatigue: What Is It and How To Prevent It

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