Impacts of Subsidized Ridesharing on Drunk Driving, Alcohol Consumption, and Mobility

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

7034 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-05-01

Study Completion Date

2025-04-04

Brief Summary

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The purpose of this research study is to understand people's alcohol use in public places and their risks for harm. The overall goal of this study is to test the effects of subsidized ridesharing as an intervention to reduce self-reported alcohol-impaired driving, along with alcohol consumption and changes to mobility.

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Detailed Description

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Motor vehicle crashes are the leading cause of death for people aged 13-25 years in the US, and approximately 31% of all fatal crashes involved some alcohol use. Several peer-reviewed studies have found that ridesharing was associated with fewer alcohol-involved crashes and DUI arrests. Theories of behavioral economics provide a clear theoretical mechanism by which ridesharing will reduce alcohol-involved motor vehicle crashes compared to other private transportation. However, while ridesharing may be an effective intervention to reduce alcohol-involved crashes, it may simultaneously increase alcohol consumption. This study will assess the impacts of subsidized ridesharing on impaired driving, alcohol consumption, and mobility. Participants will be randomized to either receive a rideshare voucher or an online shopping voucher, and effects on alcohol impaired driving and alcohol consumption will be measured. A GPS sub-group will use a custom smartphone application for GPS tracking to measure mobility.

Conditions

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Driving Drunk Alcohol Drinking

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Participants

Study Groups

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Intervention

Participants will be asked to complete 3 surveys over 2 weeks to collect in information on their alcohol use and about themselves, and receive ridesharing vouchers.

Group Type EXPERIMENTAL

ridesharing voucher

Intervention Type BEHAVIORAL

Ridesharing vouchers will be given for completing each of the online surveys, for a possible total of $80 if you complete all three surveys. You will be paid with electronic vouchers that will be sent to your cell phone.

Control

Participants will be asked to complete 3 surveys over 2 weeks to collect in information on their alcohol use and about themselves, and receive online shopping voucher.

Group Type SHAM_COMPARATOR

online shopping voucher

Intervention Type BEHAVIORAL

Online shopping vouchers will be given for completing each of the online surveys, for a possible total of $80 if you complete all three surveys. You will be paid with electronic vouchers that will be sent to your cell phone.

Interventions

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ridesharing voucher

Ridesharing vouchers will be given for completing each of the online surveys, for a possible total of $80 if you complete all three surveys. You will be paid with electronic vouchers that will be sent to your cell phone.

Intervention Type BEHAVIORAL

online shopping voucher

Online shopping vouchers will be given for completing each of the online surveys, for a possible total of $80 if you complete all three surveys. You will be paid with electronic vouchers that will be sent to your cell phone.

Intervention Type BEHAVIORAL

Other Intervention Names

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Uber voucher Amazon voucher

Eligibility Criteria

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Inclusion Criteria

* ≥ 21 years old
* Reside in a study city
* Have a driver's license
* Have access to a motor vehicle
* Have consumed alcohol in a bar in the last 30 days
* Own a smartphone
* Read English