Traffic crash changes following transitions between daylight saving time and standard time in the United States: New evidence for public policy making

Driving fatigue increases after the Spring transition to Daylight Saving Time in young male drivers: A pilot study

“…According to a review by Carey and Sarma (2017) , sixteen studies had investigated the short-term effect of DST on road safety, with inconsistent results: 19% reported a crash reduction, 38% a crash increase, 44% no significant changes. More recently Zhou and Li (2022) have also reported contrasting results in their review of the literature. Therefore, several fundamental questions regarding the effects of the Spring transition to DST on road safety remain open.…”

The controversy over daylight saving time: evidence for and against

“…These findings have been recapitulated using driving simulators in a laboratory setting with participants just before and after the spring DST transition [20]. However, many recent studies have not replicated these findings [21][22][23][24]. Turkey implemented pDST in 2016.…”

“…Similarly, a recent study out of the UK [22] found an increase in accidents after both transitions when considered over a 3-week period, but as the analysis became more focused on just the transition days, no significant effects were noticed in the fall and a significant decrease was noted in the spring. An American study that looked at traffic accidents in six different states during 4-week windows on either side of the time transitions found a significant 18% decrease in accidents after the spring transition, and a significant 6% increase in accidents after the fall transition [24]. The particular states selected, and the analysis approach may have contributed to differences with previous studies.…”