Reported number of collisions
Casualty and collision numbers for 2020 and 2021 were affected by the Covid-19 pandemic and associated restrictions on travel.
Figure 1 shows the long-term trend for injury road collisions recorded by the police.
In 2023, there were 4,217 collisions in which someone was killed or injured. This was 2% higher than in 2022 and the fourth lowest number since records began. There were 151 fatal collisions in 2023, the same as in 2022, there were 1,686 serious injury collisions; and 2,380 slight injury collisions.

Note for Figure 1: Due to changes in the way casualty severity is recorded, figures for the number of serious and slight collisions are not comparable with years prior to 2004.