Aims and eligibility criteria
The FEEDBACK trial will examine whether personalised driver feedback and personalised financial incentives are superior to 
Aged 18 to 20 years when joining the trial.Live in one of three Australian states: Queensland (QLD), New South Wales (NSW), or Western Australia (WA).Hold a provisional (P1) licence for a car.Have access to a vehicle with Bluetooth functionality that they drive regularly.Have a smartphone that is an Android or an iPhone 6 or newer.When consent has been provided, participants will receive a link to download a smartphone application (‘FEEDBACK’ app), developed by industry partner Urban Analytica (UA) Pty Ltd and will be asked to pair the smartphone with their car via Bluetooth. Each participant’s driving behaviour will be monitored for 28 weeks, beginning with a 4-week baseline period.After the 4-week baseline period, each participant will be randomised into one of two groups: (1) an intervention group that will receive personalised driver feedback and personalised financial incentive, or (2) a control group that In order to keep participants engaged throughout the trial, both the intervention and control groups will be entered into a weekly prize draw during the 20-week intervention period and at the end of the trial. Engagement in the trial will involve keeping location tracking for the FEEDBACK app enabled throughout the trial so that the app can collect driving data.