Septmeber 2025
Download this briefing as a pdf here
Key findings (Jan-Jun 2025)
- 20 mph speed limit offences rose to 204,000 for the first half of 2025.
- This suggests a total of over 400k for 2025, so up 25% from 2024 and over 10 times that in 2018, when the first London Vision Zero Action Plan (LVZAP) was published.
- Over half (54%) of speed offences were on 20 mph roads (Jan-Jun 2025). In 2024, 20 mph roads accounted for 62% of those killed and seriously injured (KSIs) in London.
- Over three-quarters (76%) of speed offences were on 20 and 30 mph roads. In 2024, 92% of London’s KSIs occurred on 20 and 30 mph roads.
- AVZ comment: It is great to see the increase in speed enforcement on 20 mph roads, where it is needed for both casualty prevention and active travel promotion. But more is still needed, including with the number and the share of total completed speed offences on 20 mph roads.
Introduction
AVZ has previously raised concerns that speed enforcement in London is not occurring where it is most needed—on 20 and 30 mph roads. These are where the majority of road casualties occur and where people walk and cycle. Our earlier analysis had shown that despite the large increase in speed enforcement on 20 mph roads, enforcement levels were still much lower than the share of reported KSIs which occur on 20 mph roads. The same held true for 30 mph roads in London. (See Table 2 overleaf).
So, it is good to be able to report the increase in 20 mph offences in the first half of 2025 (See Tables 1 and 2 overleaf). In total, 62% of all reported KSIs occur on 20 mph roads (see Tables 3 and 4 overleaf); this includes 76% of cyclist KSIs and 68% of pedestrian KSIs.[1]
All data comes from the London Vision Zero Enforcement Dashboard (LVZED) which presents offences started and includes those which will be later cancelled. This was 47% of speed limit offences in 2023. It is not known how many of these were 20 mph offences.
Another concern is that the half year total for 2025 (376,636 offences) is well below half of the final total for 2024 (827,661). If speed enforcement levels stayed the same for the second half of this year, there would only be 752,000 offences started in 2025, down almost 10% from 2024. The second half of 2025 needs to see an even greater rise in speed enforcement, if the London VZAP Progress Report target of one million speed offences is to be met.
Table 1: London speed enforcement offences started
Source: LVZED (2025)
Table 2: London speed enforcement—share by speed limit
Source: LVZED (2025)
Table 3: London – Reported KSIs
Source: LVZED (2025)
Table 4: London Reported KSI by speed limit share
Source: LVZED (2025)
actionvisionzero.org 