Line chart showing the number of injury and non-injury crashes on Transurban roads every month. There are dashed trend lines above each of those lines showing that both injury and non-injury crashes continue to decline over time, with non-injury crashes declining more rapidly. The non-injury line is about three times higher than the injury line. There are two shaded areas. The first shows that number of injuries dropped considerably in 2020 during COVID-19 lockdowns in Australia, United States of America, and Canada. The second shows that injuries remained low in 2021 while cities went in and out of lockdown.