Fatigue Guide for Truck Drivers
Fatigue Guide for Truck Drivers
Fatigue
▼
Available at www.saaq.gouv.qc.ca
Table of contents
INTRODUCTION
Purpose of the Guide 3
Fatigue and the Carrier Industry 3
Recommended Practices 4
Legislation 4
Terms Used 5
3
RECOMMENDED PRACTICES
The aim of the practices recommended in this guide is to acknowledge and manage the most common
fatigue-related risks in the carrier industry. They apply mainly to owners, operators, dispatchers and drivers.
Everyone reacts to fatigue differently and no one driver is exposed to the same risk factors. Shippers,
consignees and industry customers are also responsible for managing driver fatigue; they all play a role
in the “chain of responsibility”.
LEGISLATION
Work Environment
The Regulation respecting the hours of driving and rest of heavy vehicle drivers helps to reduce driver
fatigue. Standards enacted under this legislation help define the framework within which Quebec’s carrier
transportation industry must operate, and promote better safety for all road users as well as effective
management of industry activities. The regulation guidelines ensure that heavy vehicle drivers have a
minimum number of rest hours before they get behind the wheel and define the maximum number of
driving and service hours after which a driver must stop operating a vehicle.
4
Terms Used
Chain of responsibility
Responsibilities shared by all parties involved in
carrier transportation, since fatigue can be caused
by the decisions and actions of each party.
Risk assessment
A process by which the seriousness and degree
of risk and factor(s) involved are determined.
5
PART
1
Understanding Fatigue-Impaired Driving
Fatigue can be described as a gradual decline of physical and mental alertness that
leads to drowsiness or sleepiness. Fatigue becomes a problem when it jeopardizes
a driver’s ability to perform tasks that require alertness, judgment and good reflexes.
AGGRAVATING FACTORS
Fatigue is a biological condition that commitment, experience or motivation cannot overcome or offset.
The degree of fatigue can be affected by the following aggravating factors:
Sleep deprivation and an accumulated sleep deficit;
The existence of an untreated sleep disorder (apnea, insomnia, etc.);
Recognizing and
Time of day, circadian low points;
controlling the effects
Number of waking hours (after 17 waking hours, physical and mental performance declines considerably);
of fatigue can prevent Use of alcohol, medication or other drugs.
highway crashes
and save lives. EFFECTS OF FATIGUE ON OPERATING A VEHICLE
Fatigue adversely affects driving performance. There is a very strong connection between fatigue and
errors leading up to an accident. Drivers do not have to be falling asleep at the wheel for fatigue to impair
their ability to operate a vehicle. Recognizing and controlling the effects of fatigue can prevent highway
crashes and save lives.
Fatigue: increases reaction time;
decreases alertness;
distorts judgment;
impairs memory;
reduces a driver’s field of vision;
increases the risk of drowsiness and sleepiness.
0,14
0,12
0,10
Percentage
0,08
0,06
0,04
0,02
0
M 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time of day Campbell and Belzer (2000), USA
Sleep Deficit
For most people, getting fewer than 7 to 8 hours of sleep on a regular basis will result in a sleep deficit.
The deficit must be compensated by an equivalent amount of sleep. Sleep is the only way to recover
from sleep deprivation.
The average duration of sleep strongly depends on the time at which you go to bed.
Bed time Shapiro and Heslegrave. Making the shift work, p. 17 (1996)
After 17 waking
hours, our physical
and mental faculties Rest and nap periods temporarily help recover from fatigue.
decline significantly. They are, however, never a substitute for a main sleep period.
Microsleep
Microsleep is a brief (a few seconds or a few minutes) and involuntary lapse in attention, causing a loss
of consciousness: the head falls and eyes close briefly. These episodes can occur if an individual is tired
and trying to stay awake to perform a monotonous task, such as driving a vehicle along a highway or
staring at a computer screen.
PERIOD OF WAKEFULNESS
After 17 waking hours, our physical and mental faculties decline significantly. The longer a driver
is awake, the greater the decline in faculties, reaching levels that are usually associated with alcohol abuse.
Reaction time can therefore double and actions are not as precise.
Sleep apnea affects Sleep apnea affects mainly overweight men age 45 and over. Within the general population, 3%
mainly overweight of women and 5% of men have this sleep disorder and 15% of professional drivers are affected.4
men age 45 and over. Sleep apnea can be described as loud or irregular snoring and repeated episodes when breathing stops
Within the general during the night. Consult your physician to discuss the options available to treat this sleep disorder.
population, 3% of
women and 5% of WARNING SIGNS OF FATIGUE BEHIND THE WHEEL
men have this sleep Frequent yawning, nodding off.
disorder and 15% Trouble finding a comfortable position.
of professional Involuntary lane changes.
drivers are affected. Delayed braking.
No memory of the last few kilometres travelled.
Difficulty maintaining a constant speed.
Failure to check mirrors.
Missing an exit.
Hallucinations.
2
Managing Fatigue
“CHAIN OF RESPONSIBILITY”
Fatigue can be caused by the decisions or actions of various parties within the carrier industry,
hence the concept of a chain of responsibility. These parties include: shippers, heavy vehicle operators,
drivers and consignees. Each must be familiar with and fulfill their legal responsibilities to minimize
fatigue-related accident risks. They also have to ensure that they do not make unreasonable or unrealistic
demands on drivers.
Drivers must comply with fatigue management methods and practices designed to help reduce fatigue-related
accident risks.
Shippers
Lack of flexibility for pick up hours.
F inancial pressures that often take priority over a driver’s fatigue and accident risk
for the driver and other road users.
No rest lounge for drivers who are waiting.
Drivers
Poor planning of schedules and routes.
Non-existent or inadequate fatigue management practices.
Heavy evening meals. Use of alcohol, medication or other drugs.
Second job, which limits the number of hours of sleep.
Existence of a sleep disorder.
Consignees
A lack of flexibility and short deadlines for unloading.
Unreasonable delivery demands.
No rest lounge for drivers who are waiting.
FATIGUE MANAGEMENT
You cannot rely solely You cannot rely solely on legislation to control the number of driving
on legislation to and rest hours to prevent fatigue, drowsiness and falling asleep
at the wheel. Legislation establishes maximum limits that must not
control the number
be exceeded, not limits that should be reached. Regularly approaching
of driving and rest these limits means moving away from healthy sleep management.
hours to prevent It is wrong to believe that you risk having an accident only after
fatigue, drowsiness 13 hours of driving or 14 hours of work. It is important for individuals
and falling asleep. to evaluate their activities and contribute by developing practices
to prevent heavy vehicle driver fatigue.
The success of a fatigue management program depends
on a joint effort between managers and drivers on the following points:
informing employees, shippers and customers
who do business with the company about new policies
that are in effect;
evaluation of existing fatigue-related risks;
e valuation of the effectiveness of current fatigue
management practices;
c hanges to work schedules, activities and
introducing new equipment;
n ew information about how fatigue affects health
and jeopardizes the safety of drivers and other road users;
reference to an incident or accident.
Do work shifts often begin and end at night or early in the morning?
To achieve operating objectives, do drivers have to work more than 10 hours over
a 24-hour period?
Do work schedules or shifts often limit the opportunity for a driver to sleep at least
To accurately 7 to 8 hours straight within a 24-hour period?
assess your situation,
Do you hire contract workers who may have put in long hours at another job?
discuss these issues
with your drivers. Do drivers need more flexibility to manage fatigue and to accommodate unexpected
situations they may encounter during runs (i.e. deadlines, waiting in line to load
or unload, the weather)?
Aside from driving, are there mental or physical factors that contribute
to driver fatigue?
Are there environmental factors, such as heat, noise, vibrations, road conditions,
that contribute to driver fatigue?
Are there factors that make it difficult to rest (sleep) in the vehicle?
Data Analysis
Collecting data and examining work shifts may help find and understand common situations that can
Do not hesitate
lead to fatigue, such as:
to consider any
situation that work shifts that require more than 10 hours of service and driving within a 24-hour period;
ork shifts that do not allow at least two consecutive 24-hour rest periods at the end of each
w
may contribute
work cycle;
to fatigue.
work shifts that involve service or driving at night and therefore limit the opportunity to sleep at night.
This also applies to schedules, assignments, delays and other incidents. Do not hesitate to consider any
situation that may contribute to fatigue, such as:
schedules that do not allow drivers 7 to 8 hours of uninterrupted sleep within a 24-hour period;
a ssignments that do not factor in travel time before and after a work shift, delays, interruptions,
sick leaves or other absences;
unpredictable schedules that give drivers little time to prepare or adjust to schedule changes;
p oor planning of itineraries, with the result that few amenities are available to drivers (rest areas,
restaurants, etc.);
the workload aside from driving (pre-trip inspection, loading, unloading), which can have a bearing
on physical fatigue during the entire trip;
d elays due to waiting time (loading and unloading, border crossing, etc.), which increase the initial
time allotted;
drivers who have not received fatigue management training;
vehicles that do not have a sleeping berth or adequate ventilation system;
poorly maintained vehicles (necessary maintenance to minimize vibrations and noise).
Night-time driving reduced Night-time driving two to three Night-time driving more than
to a minimum times a week three times a week
Schedule available at least one Schedule available a few days Schedule available only 24
week in advance in advance or fewer hours in advance
Short breaks throughout the Short breaks near the end Breaks sacrificed to increase
work shift of the work shift number of driving hours
Fewer than 10 hours of overtime Over 10 hours of overtime Over 20 hours of overtime
each week each week each week
You can determine
the extent of a problem Driver almost always at rest Driver at rest between 11:00 No rest for the driver between
by asking drivers between 11:00 p.m. and p.m. and 6:00 a.m. (two to three 11:00 p.m. and 6:00 a.m.,
6:00 a.m. (circadian low points) times a week) two days straight each week
to indicate if the
difficulties observed Opportunity for a driver to sleep Opportunity for a driver to sleep Opportunity for a driver to sleep
apply to their 7 to 8 hours straight, almost 7 to 8 hours straight, three to 7 to 8 hours straight, fewer than
activities. every day four times each week three times each week
Two (or fewer) night work Three night shifts in a row More than three night shifts
shifts in a row lasting more than lasting more than 8 consecutive in a row lasting more than
8 consecutive hours hours 8 consecutive hours
DRIVER’S CHECKLIST
• stay mentally alert: listen to music on the radio, mentally calculate distances;
• eat healthy meals at regular hours, avoid fatty foods, especially in the evening;
Remind drivers that caffeine provides only temporary heightened alertness and that if consumed
in excess, it can have adverse health effects.
MANAGER’S CHECKLIST
Work shifts should be scheduled around the best opportunities for sleep and rest.
Provide adequate training for your drivers. Training and information should focus on:
Equipment
Sleeping berths, ventilation systems and other
equipment must comply with legal requirements.
A maintenance program should be introduced to
ensure that the right type of equipment is used
for the work that is carried out.
Services
The services that are provided may vary
according to the type of company and should
include adequate lounge rooms, showers and
washroom facilities on the premises of the
company’s home terminal. When planning
an itinerary, the location of rest areas should
be considered.
MANAGER’S CHECKLIST
Inform workers about the company’s alcohol and drug use policy.
Driving fitness
requires a driver and Notify drivers of their next departure at least 24 hours in advance.
carrier to behave in a
manner that minimizes Inform drivers about the need to take regular rest breaks to prevent fatigue or to recover.
the risk of fatigue-
Prevent a driver who is not fit to drive from getting behind the wheel.
related accidents.
Maintain equipment in good operating condition:
Track down and repair components that contribute to excessive noise and vibration.
MANAGER’S CHECKLIST
Just as equipment
Reassess risks, depending on the answers you receive to the following questions YES NO
and trucks require
maintenance, During the work shift that was just completed, were drivers given the time necessary
procedures to draft to prepare for a long trip, to return rested and available for work or to be able to cope
with schedule changes (making the transition from day work to night work)?
work schedules
must be reviewed During work shifts, are allowances made for waiting times or other problems that
and updated from can cause delays on the road?
time to time.
During this period, did drivers have the opportunity to get enough rest and sleep at night?
Are there ways customers and consignees can change their operations to improve
the work-rest cycle? (For example: Load vehicles in the morning to allow drivers
to get to bed earlier.)
Updating Procedures
It is important to update basic procedures. If you have to make trips or runs that differ from your usual
activities, the risks they represent in terms of fatigue management must be assessed (risk assessment
and risk management process = recommended procedures). For example, if your activities are usually
carried out during the day and if you have agreed to drive during the night, you will have to change your
fatigue management strategies.
Involvement of another factor that can cause fatigue (vehicle failure, delivery wait time, traffic)
Other
Determine what occurred during the incident and specify the cause.
Consider whether the driver’s work-rest cycle may have contributed to the incident.
All incidents etermine if wait times, delays or problems attributable to customers or consignees
D
should be discussed (or another party involved) may have contributed to the incident.
otify customers or consignees (or another party) if you believe they contributed
N
to the incident and inform them of the change(s) you would like them to make
to their operations (i.e. change delivery schedules).
If an investigation reveals that one or more internal procedures were not followed, find out why.
Update training.
Based on input from drivers, draw up schedules that provide enough rest time.
Go over the terms of employment with which drivers who failed to follow procedures must comply.
otify shippers or consignees who have unrealistic requests and expectations of your obligations
N
and change work contracts accordingly.
EXAMPLE
A road accident prevents a driver from making it to the shipper on time (one hour delay).
The driver therefore has to make up for lost time to comply with the predetermined schedule.
Possible solution
To compensate for a longer work period, allow for a longer rest period over
the next 24 hours.
General principle
More rest and less work during the next work shift should compensate
for a longer continuous work period.
Risk Assessment
Risk Determination ork schedules that end between midnight and
W
ork shifts longer
W 6:00 a.m. often result in long periods of wakefulness,
than 12 hours. accumulation of a sleep deficit and driving at the
Long work shifts highest risk period of the day.
that start or end elays may have an impact if they are offset by
D
between midnight reduced rest periods and breaks or by speeding.
and 6:00 a.m. They therefore increase risks.
elays due to
D A llowing drivers fewer than 24 hours to make
waiting time. the transition from a day schedule to a night schedule
Unpredictable can affect their alertness when they come in for work.
schedules.
Limit the sleep deficit a driver accumulates by planning at least two consecutive 24-hour rest
3 periods each week.
Plan a longer rest period between work cycles to allow drivers to benefit from two consecutive
4 10-hour rest periods (preferably at night between 10:00 p.m. and 7:00 a.m.), to compensate
for a lack of regular sleep.
After a long work shift, plan a shorter shift the following day (this will allow a driver to get more
6 sleep and rest).
Encourage drivers to take breaks and naps, eat healthy meals and exercise as short-term
8 solutions.
Acknowledge that there are limits to the human body’s ability to compensate and that
9 7 to 8 hours of uninterrupted sleep is essential.
When drawing up work schedules, make allowances for the amount of time that daily living
10 activities require (meals, sleep, hygiene, time traveling to and from work, family life, emotional
well-being, work around the house, etc.).
11 Ask drivers to pull into a safe location to rest at the first signs of fatigue.
Add additional
information and
key contacts.
Acknowledge that
there are limits to the
human body’s ability
to compensate and
that 7 to 8 hours
of uninterrupted
sleep is essential.