The Chance of Getting Struck by a Car on an e-Scooter is Twice as High at Night

Abstract

Nighttime crash risk is higher across all modes of transportation. Despite regulatory pressure to intervene in nighttime e-scooter riding, there is limited understanding of the number of crashes and crash rates by daytime and nighttime. Motor vehicle-involved crashes are most dangerous. This study combined 82 police crash reports with data from 3.1 million shared e-scooter trips in Nashville, TN from September 2018 to January 2022 to evaluate the time-of-day and seasonal crash patterns, controlling for exposure. E-scooter crashes, with cars at least, are more likely to occur during the nighttime, as indicated by crash rates estimated from trip count as an exposure variable.