An Educational Intervention to Promote Safe Driving

Study Overview
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Brief Summary
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The general aim of the study is to promote safe, economic, and environmental-friendly driving among long-haul truck drivers. To do this, the investigators will conduct an on-road study on i) the relationship of driver sleepiness and stress with driving behaviour and fuel consumption and ii) effectiveness of an educational intervention in mitigating sleepiness at the wheel. The educational intervention is designed to be employed by occupational health care professionals in the future. This solution clearly facilitates the implementation of the intervention into practice if it turns out to be effective. The investigators specified research questions are the following: Do truck driver sleepiness and stress at the wheel reach levels that affect driving behaviour, fuel consumption and carbon emissions? What are the sources of sub-optimal arousal at the wheel in truck drivers? Can truck driver sleepiness be mitigated by an educational intervention, and if yes, does it improve driving behaviour and decrease fuel consumption and carbon emissions as well?

Official Title
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An Educational Intervention to Promote Safe and Economic Truck Driving

Conditions
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Driver Sleepiness

Intervention / Treatment
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* Behavioral: Fatigue management training


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: working as a truck driver at the moment of the study having both day and night trips having at least 2 years of experience in truck driving Exclusion Criteria: not fluent in Finnish (the intervention is in Finnish)

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Fatigue management training<br>Experimental group subjects participated in a single half-day fatigue management training session. | Behavioral: Fatigue management training<br>* Experimental group took part in a single half-day (4 hours) fatigue management training grounded on Problem Based Learning (PBL).<br>|
| No Intervention: No fatigue management training<br>The control group subjects did not participate in the fatigue management training. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| driver sleepiness | Self-reported sleepiness measured by the the Karolinska Sleepiness Scale Questionnaire and behavioral sleepiness measured by the Observer Rating of Drowsiness (based on video materia). | one year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| driver stress | Self-rating scale of stress and heart rate measures of stress (heart rate variability) | one year | 
| sleep | wrist-worn actigraphy and sleep diary based measures of sleep quantity, timing and quality | one year | 
| driving behaviour | vehicle movement-based measures of driving behaviour (speed, accelerations, deceleration) | one year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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professional drivers, sleepiness, stress, safe driving, training