Research on driving distractions and safety

Recent research and data analyses have identified several key factors that impair driver safety and reaction times. An analysis of National Highway Traffic Safety Administration statistics from 2020 to 2024 found that handling a cellphone—including texting, dialing, and scrolling—was the leading behavior among drivers involved in fatal crashes. Passenger interactions were identified as the second most common distraction in fatal crashes.

Studies also highlight the impact of auditory and cognitive distractions. Research suggests that loud music can impair performance, with music at 74 decibels causing a 16% increase in reaction time compared to silence, while high-tempo songs may encourage increased driving speeds. Additionally, a study from Fujita Health University in Japan demonstrated that verbal conversations significantly impact cognitive capacity and visual reaction times by consuming mental resources.

Legal frameworks, such as Germany’s Road Traffic Regulations (StVO), address electronic device use. While checking the time on a smartwatch is generally permitted, using such devices to read messages, scroll through notifications, or operate apps is restricted to prevent driver distraction.