Reducing Distracted Driving With the Flip of a Switch

Study Overview
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Brief Summary
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We propose to test a potential intervention to reduce distracted driving among high school students that could be used as part of future research trials and school campaigns. This intervention is designed to encourage use of a setting that silences incoming calls and messages while the person is driving.

Detailed Description
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The purpose of this study is to test an intervention to reduce distracted driving among high school students. We're interested in learning the use of Do Not Disturb While Driving (DNDWD) by high school students. Participants will be recruited to participate into a 4-week study. Those that consent will download a driving app that will monitor their phone use while driving. Halfway through the monitoring period, we will ask participants to turn on DNDWD. Participants will also have the opportunity to enroll into an auto-reply message contest for best message. Once the 4- week monitoring period is complete participants will complete and exit survey

Official Title
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Reducing Distracted Driving With the Flip of a Switch

Conditions
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Automobile Accident

Intervention / Treatment
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* Device: Do Not Disturb While Driving


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: High School student with school assigned email address Has a cell phone with ability to download Way to Drive app Has a driver's license and typically drives every week Exclusion Criteria: Unable to read or understand English Under 18 years old and no parental consent

Ages Eligible for Study
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Minimum Age: 16 Years
Maximum Age: 19 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
Intervention Model: Single Group Assignment
Interventional Model Description: Participants will be monitored for 4 weeks. Halfway through the monitoring period, participants will be asked to turn on the DNDWD feature on their phone.
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Monitoring phase<br>Participants will be monitored for 4 weeks. Halfway through the monitoring period, participants will be asked to turn on DNDWD. | Device: Do Not Disturb While Driving<br>* Participants will be asked to turn on Do Not Disturb While Driving on their smartphones.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in self-reported DNDWD | Change is reported use. Dichotomy of use or non-use pre and post intervention | For the duration of the study; 4 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Seconds of active (handheld) phone use per hour of driving | This is a composite outcome that measures the proportion of total trip time in which the driver is engaged in handheld phone call use or non-call handheld use (e.g. texting, swiping, and typing), as measured by the Way to Drive app. Several studies (e.g. Klauer, NEJM, 2014) have demonstrated the association between handheld phone use (e.g., reaching for phone, typing, swiping, dialing) and increased crash risk. This outcome is also known as the active phone use percentage. Passive phone use (e.g. phone is streaming GPS navigation directions or music without any typing, swiping, and handheld holding of the phone) is not included in this outcome. Trips are only counted if the app predicts the user was a driver for the trip based on the phone sensor data and the user does not correct the app; or, if the user corrects the app and indicates they were driving. | For the duration of the study; 4 weeks | 
| Seconds of active (handheld) call use per hour of driving. | We will analyze the components of the secondary outcome separately. | For the duration of the study; 4 weeks | 
| Seconds of active (handheld) non-call use per hour of driving | We will analyze the components of the secondary outcome separately. | For the duration of the study; 4 weeks | 
| Seconds of passive (hands-free) call use per hour of driving | Use of DNDWD should also cut down on hands-free driving distraction. | For the duration of the study; 4 weeks | 
| Seconds of passive (hands-free) non-call use per hour of driving. | Use of DNDWD should also cut down on hands-free driving distraction. | For the duration of the study; 4 weeks | 
| Seconds of speeding per hour of driving | . Speeding events, defined as >10 mph above the posted speed limit, are detected by the app. | For the duration of the study; 4 weeks | 
| Hard braking events per 100 miles. | Hard braking events are detected by the app. | For the duration of the study; 4 weeks | 
| Fast acceleration events per 100 miles. | Fast acceleration events are detected by the app. Acceptability of interventions will be measured using a mixed-methods approach: | For the duration of the study; 4 weeks | 
| Net promoter score | In the exit survey, participants will be asked How likely is it that you would recommend this program to a friend or colleague? on a 0 to 10 scale. | For the duration of the study; 4 weeks | 
| Responses to open-ended questions in exit survey | Participants will be asked the following two open-ended questions: 1) Please tell us what you liked about participating in this study; 2) Please tell us what you didn't like about participating in this study and how we should improve the experience in the future. These qualitative responses will be coded for content related to intervention acceptability and emerging themes will be identified. | For the duration of the study; 4 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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distracted driving automobile, behavioral economics (nudge), smartphone application