Randomized Trial on Mobile Technology and Young Drivers' Cellphone Use

Study Overview
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Brief Summary
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The purpose of this study is to conduct a randomized controlled trial to determine the effects of a cellphone app and a driving mode intervention on driving behavior in drivers aged 18-24 years.

Detailed Description
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For this study, 1200 teens aged 18-24 years will be randomized into one of three study groups for 6 months. Researchers aim to evaluate the effectiveness of commercial cellphone-blocking apps and driving mode interventions on cellphone use while driving and evaluate the effectiveness of commercial cellphone-blocking apps and driving mode interventions on high-risk driving events.

Official Title
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Randomized Trial on Mobile Technology and Young Drivers' Cellphone Use

Conditions
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Cell Phone Use, Automobile Driving

Intervention / Treatment
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* Behavioral: Commercial Cellphone-Blocking App (Active)
* Behavioral: Driving Mode


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adults 18-24 years of age at time of recruitment Must have full Ohio driver's license Must have ownership and exclusive access to a passenger vehicle Must have car insurance with at least state-minimum coverage Must live in Greater Columbus (Ohio) area Must drive at least 3-4 days a week on average Must have functioning iPhone or Android smartphone with an active phone service account (Ex: Verizon, AT&T, etc.) Must self-report handheld calling or texting while driving (≥ 1 time/week) Must not be enrolled in another driving-related research study during the study period. Must be willing to be randomized and comply with study requirements Must have no plans to change cellphones or vehicles in next 6 months or agree to transfer FleetSafer app/DriveCam if they change cellphones or vehicles Must speak and read English Exclusion Criteria: Drivers under 18 years of age Drivers holding learner's permits Drivers who share a vehicle with a family member or others Infrequent drivers (Drive 2 days a week or less) Participants from the pilot R21 project Current users of a cellphone-blocking app or driving mode who do not agree to uninstall/de-activate the app for the duration of participation in the study Current users of a car insurance monitoring device (physical device or app)

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 24 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: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| No Intervention: Control Group<br>Commercial cell-phone blocking app installed on smartphone, but app will be inactive. | |
| Experimental: Commercial Cellphone-Blocking App<br>Commercial cellphone-blocking app that blocks handheld cellphone use while driving, but allows emergency calls and phone use after pressing the passenger button will be installed on smartphone. | Behavioral: Commercial Cellphone-Blocking App (Active)<br>* The Fleetsafer app, which is a commercial cellphone app that uses a cellphone's standard sensors and function to block handheld cellphone use while driving, will be downloaded on the participant's smartphone.<br>|
| Experimental: Driving Mode<br>Driving mode blocks handheld phone use while driving or facilitates hands free use (exact functionality dependent on smartphone type and service provider).This group will also have the commercial cell-phone blocking app installed on smartphone, but app will be inactive. | Behavioral: Driving Mode<br>* Apple's Do Not Disturb driving mode provided by Apple for iPhones or Google Do Not Disturb, Verizon Messages +, Android Auto or have another app, called LifeSaver installed on their Android phone (collectively referred to as driving modes; the specific driving mode for participants in this arm will be determined based on smartphone type and service provider).<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Calling, texting, and handheld cell phone use while driving | Number of calling occurrences, texting occurrences, and handheld phone use occurrences, per 1,000 miles driven. Higher numbers signify more calling, texting, and handheld cell phone use. | 5-month intervention period | 
| High-risk driving events | Total number of high-risk driving events (e.g., hard-braking, sudden acceleration, swerving) per 1,000 miles driven. Higher numbers signify more high-risk driving events. | 5-month intervention period | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Texting, Driving, Mobile Technology