On this page
- What Is Driver Fatigue?
- What Can Contribute to Truck Driver Fatigue?
- Why Is Fatigue Especially Concerning With Large Trucks?
- How Do Hours-of-Service Rules Address Fatigue?
- Can an ELD Show Whether a Driver Was Tired?
- What Evidence Could Be Reviewed When Fatigue Is Suspected?
- Does an Hours-of-Service Violation Prove Fatigue?
- Can a Trucking Company's Records Matter?
- Why Does It Matter After an Accident?
- Frequently Asked Questions About Truck Driver Fatigue
A tired driver may have more difficulty staying alert or responding quickly to something unexpected. When the vehicle involved is an 18-wheeler or another large commercial truck, even a brief loss of attention can create a serious situation.
Fatigue does not always mean that someone completely falls asleep behind the wheel. A driver can be tired enough for driving performance to be affected without actually falling asleep.
This is one reason federal safety regulations limit how long many commercial drivers can drive and work before taking required rest periods.
After a serious truck accident, fatigue may become one of several issues investigators examine when trying to understand what happened.
What Is Driver Fatigue?
Driver fatigue generally refers to tiredness, sleepiness, or reduced alertness that can interfere with someone's ability to drive safely.
Fatigue can affect drivers in different ways.
A tired driver may have difficulty:
- Staying focused on the roadway
- Reacting quickly to changing traffic
- Making decisions
- Maintaining attention
- Recognizing hazards
- Staying awake
These problems can be especially concerning for commercial drivers who spend long periods traveling on highways.
However, seeing a mistake by a truck driver does not automatically mean fatigue caused it. Investigators need evidence before reaching that conclusion.
What Can Contribute to Truck Driver Fatigue?
Long driving hours are one possible factor, but they are not the only one.
A commercial driver's day may include much more than sitting behind the wheel. Drivers can spend time inspecting vehicles, waiting for cargo, loading or unloading, completing paperwork, communicating with dispatch, making deliveries, and performing other job duties.
Fatigue can potentially be influenced by factors such as:
- Long periods of driving
- Long workdays
- Inadequate rest
- Irregular sleep schedules
- Overnight driving
- Demanding work schedules
- Repeated days of work
- Other circumstances affecting sleep or alertness
The presence of one of these factors does not automatically mean a driver was too tired to drive.
For example, simply proving that someone drove at night does not prove that person was fatigued. Investigators have to consider the complete circumstances.
Why Is Fatigue Especially Concerning With Large Trucks?
Commercial trucks can be much larger and heavier than ordinary passenger vehicles.
They also require drivers to pay attention to issues that may be different from driving a regular car, including larger blind spots, wider turns, longer stopping distances, and the movement of trailers and cargo.
Because of these characteristics, commercial truck drivers need to stay alert to what is happening around them.
Imagine traffic suddenly slows ahead of an 18-wheeler.
An alert driver may recognize the changing traffic conditions and begin responding. If a driver is not fully alert, a delay in recognizing the situation could leave less time and distance to respond.
That does not mean fatigue is responsible every time a truck fails to stop in time. Speed, following distance, weather, road conditions, mechanical problems, traffic movement, and many other factors can also matter.
The cause has to be investigated.
How Do Hours-of-Service Rules Address Fatigue?
Federal hours-of-service rules limit the driving and working schedules of many commercial drivers.
For covered property-carrying drivers, the general rules include an 11-hour driving limit after 10 consecutive hours off duty and a 14-hour driving window.
Covered drivers are also generally required to have a qualifying 30-minute interruption after eight cumulative hours of driving without at least a 30-minute interruption.
Weekly limits can restrict driving after a driver accumulates the applicable amount of on-duty time over seven or eight consecutive days.
These regulations are intended to address safety concerns associated with excessive driving and work schedules.
However, staying within the hours-of-service limits does not guarantee that a driver cannot become tired.
The regulations establish limits. They do not measure exactly how alert an individual driver was at a particular moment.
Can an ELD Show Whether a Driver Was Tired?
No.
An electronic logging device, or ELD, can provide information about a driver's recorded driving time and duty status. It can help investigators reconstruct a driver's work schedule.
But an ELD cannot directly measure whether a driver felt fatigued.
For example, an ELD might show that a driver had a certain amount of off-duty time before starting a trip. That does not necessarily reveal how much the driver actually slept during that period.
Likewise, an ELD could show a long day of driving and working, but investigators still need additional evidence before concluding that fatigue caused an accident.
This is why fatigue investigations often involve more than one type of record.
What Evidence Could Be Reviewed When Fatigue Is Suspected?
Investigators may look at the driver's schedule before the accident and compare several different sources of information.
Depending on the circumstances, evidence could include:
- ELD records
- Driver logbooks
- Dispatch communications
- Bills of lading
- GPS or telematics information
- Fuel and expense receipts
- Trip and delivery records
- Dashcam footage
- Electronic vehicle data
- Witness statements
- Police reports
The goal is to create a reliable timeline.
For example, ELD records may show when a driver was operating the truck, while dispatch records may provide information about assignments and communications. Receipts or shipping documents may help establish where the truck was at particular times.
When these records are considered together, investigators may gain a clearer understanding of the driver's activities before the collision.
Does an Hours-of-Service Violation Prove Fatigue?
No.
A potential hours-of-service violation may be important evidence, but it does not automatically prove that a driver was fatigued.
It also does not automatically prove that fatigue caused the collision or that a particular person or company is legally responsible.
The reverse is also true.
A driver can be within the applicable hours-of-service limits and still potentially experience fatigue.
That is why an investigation should consider the driver's timeline together with the physical and electronic evidence surrounding the crash.
Can a Trucking Company's Records Matter?
Yes.
A truck driver's schedule does not exist completely separate from the trucking operation.
Depending on the circumstances, dispatch information, trip assignments, delivery schedules, electronic communications, and other company records may help investigators understand how the driver's workday was organized.
These records could help answer questions such as when a trip began, where the driver was expected to travel, and when deliveries or pickups occurred.
However, a demanding schedule does not automatically mean a trucking company forced a driver to violate safety regulations or drive while tired.
The evidence must support any such conclusion.
Why Does It Matter After an Accident?
Fatigue is not always obvious at an accident scene.
There may be no photograph that directly shows how tired a driver felt. That means investigators may need to reconstruct the driver's activities and schedule before the collision.
At Jacqueline A. Scott & Associates, when fatigue is a possible issue in a serious Louisiana truck accident, we can examine available ELD records, driver logs, dispatch information, trip documents, electronic data, and other evidence to reconstruct the driver's timeline.
We can then compare that timeline with the applicable hours-of-service requirements and the other facts surrounding the collision.
If the evidence raises legitimate questions about fatigue, we can investigate those questions further. If it does not, we can focus on the evidence pointing to other possible causes.
Our goal is to determine what the records actually show rather than assuming that fatigue was involved simply because an accident involved a commercial truck.
Frequently Asked Questions About Truck Driver Fatigue
Does truck driver fatigue always mean the driver fell asleep?
No. Fatigue can involve reduced alertness, attention, or reaction ability without the driver completely falling asleep.
Can an ELD prove that a truck driver was tired?
No. An ELD records information related to driving time and duty status. It can help establish a driver's schedule, but it cannot directly measure how tired or alert the driver felt.
Does violating hours-of-service rules automatically prove fatigue?
No. A possible hours-of-service violation can be relevant evidence, but investigators still need to determine whether fatigue actually played a role in the collision.
Can a driver be fatigued without violating hours-of-service rules?
Yes. Hours-of-service regulations establish driving and working limits, but complying with those limits does not guarantee that an individual driver could not become tired.
How would we investigate possible driver fatigue?
At Jacqueline A. Scott & Associates, we can reconstruct the driver's timeline using available ELD records, logbooks, dispatch communications, trip information, and other evidence. We can compare that information with the accident evidence and applicable regulations to determine whether fatigue may have been relevant to the collision.
This article is general information about Louisiana law and is not legal advice. Laws and deadlines can change, and every case depends on its own facts. Past results do not guarantee or predict future outcomes. Reading this page or contacting the firm does not by itself create an attorney-client relationship.
