Nudging for safety driving: how to decrease accident rates and increase shared taxis safety?

Shared taxis are often known for being fast and for routing with no clear timetable. On this account, multiple car accidents, deaths, and injuries are caused by these vehicles. Aiming to find a solution to scale down accidents and to make this service safer, we conducted qualitative research to understand the reasons behind this problem. Based on the findings, we designed a sticker with a message nudging passengers to communicate their concerns. Finally, we designed a Randomised Controlled Trial (RCT) to evaluate the impact of the nudging intervention, which led to an increase in the percentage of people who speak up.