Drivers are spending >10% of their time on phones?
Before the start of the trial, the participants all averaged more than 6.4
minutes per hour of handheld use while driving...
Paying drivers on top of competitive gamification was the most effective way
to get them to put down their phones. This group reduced its handheld usage by
27.6 percent, or 89 seconds/hour, compared to the control.
But monitoring and paying them reduced this to only 7% of driving time.