Trends in the reported numbers of Injury Road Accidents and Casualties

Main Points

In 2019 Police Scotland started to use a new accident recording system. The introduction of this new system has changed the way casualty severity is recorded and, as a result, comparisons of the number of serious and slight casualties to earlier years should be made with caution. This publication includes adjusted figures in Tables 1a and 1b, produced by the Department for Transport, that allow users to make comparisons to previous years. Other breakdowns, such as severity by mode of transport and type of road, are presented on the basis of the unadjusted figures as reported by Police Scotland.

Table 1 shows the long-term trends in the reported numbers of injury road accidents and casualties, the population of Scotland, the number of vehicles licensed, the length of the road network and the volume of traffic. Information on the severities of the accidents, and of the injuries suffered by the casualties, is provided in Table 2. The numbers of injury road accidents were first recorded separately in 1966, while the numbers of casualties are available back to 1938, with annual collection of data starting in 1950. Figures 1 to 7 illustrate the trends in the reported numbers of injury road accidents and casualties including (in some cases) indications of the likely range of random year–to-year variations.

As mentioned in the introduction, injury accidents not reported by the public to the police won’t appear in the returns. Note that each accident will result in one or more casualties. For example a fatal accident could result in two fatalities and a serious injury which would count as one accident and 3 casualties.

Accidents

In 2020, there were 131 fatal accidents, 28 (18%) less than in 2019.
In 2020 there were 1,371 serious injury accidents.
In 2020 there were 2,376 slight injury accidents.

Casualties

There were 141 people killed in road accidents in Scotland in 2020, 25 (15%) less than in 2019.
1,547 people were seriously injured in road accidents in 2020.
3,352 people were slightly injured in road accidents in 2020.
There were a total number of 5,040 casualties in 2020 – 2,705 (35%) fewer than in 2019.

The reductions in the numbers of accidents and casualties in recent years are notable particularly given the rise in vehicle and subsequent traffic; e.g. in 2020 the number of vehicles licensed in Scotland was about thirteen Percent higher than in 2010. Prior to the coronavirus pandemic, motor traffic had been increasing steadily.

Reported Accidents

In 1966 there were just over 23,200 injury road accidents and the annual total remained around this level until 1973. Numbers then dropped considerably in 1974 and 1975 to about 20,600. This was the time of a fuel crisis when a national speed limit of 50 mph was introduced and the volume of traffic in Great Britain fell by 3% in 1974. Accident numbers increased again in 1976 and reached a peak of nearly 23,100 in 1979.

In the early 1980s numbers began to fall, and did so particularly sharply in 1983 when the total number of injury accidents fell by 7% in a single year to 19,400, serious accidents fell by 13% to just over 6,400, and fatal accidents fell by 11% to 568. The 1981 Transport Act came into force in 1983 and changed the law relating to drink driving, with the introduction of evidential breath testing. Compulsory front seatbelt wearing and new procedures for licensing learner motorcyclists were also introduced in 1983. After 1983 the total number of injury accidents increased again to over 20,600 in 1985, and the number of serious accidents rose to just over 6,500 while fatal accidents continued a downward trend.

By 1987 the total number of injury accidents had fallen to under 18,700, but in 1989 it rose to just over 20,600. 1989 was the most recent peak in the total number of injury accidents. Since 1989, the total number of injury accidents has fallen in 28 out of 32 years, and in 2020 it was at the lowest level ever recorded. The 2020 figure of 3,878 was 1,928 less than in 2019.

Since the late 1980s, the number of fatal accidents has fallen considerably e.g. from 517 in 1987 to 131 in 2020. For serious accidents, the trend has also been downwards. The number of serious accidents has fallen e.g. from 5,814 in 1989 to 1,369 in 2018. The number of slight accidents did not share such a clear downward trend between 1970 and 1998, oscillating between 12,000 and 15,000 with a recent peak level of 14,443 in 1990. However, they fell below 12,000 in 1999, and the 2018 figure of 4,904 was the lowest since slight accident numbers were first recorded in 1970.

As outlined above, Police Scotland’s move to CRASH, an injury-based reporting system, has resulted in changes in severity reporting. Table 1a provides adjusted figures to show how many slight and serious accidents there would have been in previous years if they had been recorded using an injury-based reporting system. These experimental statistics, produced by the Department for Transport, make it possible to compare the most recent statistics to previous years. On the basis of the adjusted figures, the number of serious accidents in 2020 decreased by 37% on 2019, and the number of slight accidents decreased by 11.5%.

Reported Casualties

As the numbers of accidents have fallen, so have the numbers of casualties. Therefore, this section does not repeat the previous section’s detailed analysis of how the numbers have changed. Details can be found in Table 2.

Numbers killed

In 2020 there were 141 people killed in road accidents in Scotland, a decrease of 15% on 2019. With a few exceptions, figures fell in each year since 1978, showing a clear, steady long-term downward trend, particularly between 1982 and 1994. Since then, figures have been fluctuating around a less pronounced downwards trend. The number in 2020 was below the average for the previous five years (161).

Numbers seriously injured

In 2020 there were 1,547 people seriously injured in road accidents. The long-term trend shows that the number of serious casualties peaked in the early 1970s at around 10,000 and generally fell since the early 1980s. The long-term downward trend appeared to level off at around 4,050 in the mid to late nineties, but the downward trend subsequently resumed. Table 1b provides adjusted figures to show how many serious casualties there would have been in previous years if they had been recorded using an injury-based reporting system. These experimental statistics, produced by the Department for Transport, make it possible to compare the most recent statistics to previous years. On the basis of the adjusted figures, the number of people seriously injured in 2020 decreased by 39% on 2019.

Numbers slightly injured

In 2020 there were 3,352 people slightly injured. Between 1970 and 1990, the figures fluctuated between 17,000 and 21,000. The fall between 1990 and 1995 was followed by an apparent levelling-off at around 17-18,000 in each of the years from 1996 to 1999. However, 2000 to 2018 showed consecutive falls suggesting a continuing downward trend. Table 1b provides adjusted figures to show how many slight casualties there would have been in previous years if they had been recorded using an injury-based reporting system. On the basis of the adjusted figures, the number of people slightly injured in road accidents in 2020 decreased by 31% on 2019.

Total numbers of casualties

In 2020 there was a total of 5,040 casualties, 2,705 (35%) fewer than in 2019 (the lowest number recorded). Between about 1970 and 1990, the figures fluctuated around a general downward trend. Subsequently, the casualty figures fell markedly from the level of the most recent short-term peak (over 27,000 in both 1989 and 1990), before appearing to level off. However, the downward trend resumed from 1999 to 2020.

< Previous | Contents | Next >