Request ID: FOI-2617-2324 Date published: 13 November 2023
You asked
Could you provide accident/collision data for each of the last five years. Separated between the Southbury Road to Bullsmoor Lane average speed cameras / Southbury Road to Great Cambridge Road roundabout.
We answered
Our Ref: FOI-2617-2324 / FOI-2620-2324 Thank you for your request received on 19 and 26 October 2023 asking for collision data for the A10. Collision data from around the world shows that the speed at which people are driving or riding is the single most important factor in whether a collision takes place and how severely people are injured. Around half of the 2022 fatal collisions in London (48 out of 99) reported speed as a contributory factor. Indicative TfL monitoring of the 20mph speed limits introduced on roads within the central London Congestion Charging Zone shows a significant reduction in the number of collisions since its introduction. Interim monitoring post implementation of 20mph in central London found a 36 per cent reduction in collisions involving vulnerable road users and a 25 per cent decrease in collisions resulting in death or serious injury since the introduction of the lower speed limits. The reduction in collisions resulting in death or serious injury on roads within the central London Congestion Charging Zone should be seen in the context of a London-wide reduction in collisions resulting in death or serious injury of around 10 per cent over the same period. This demonstrates that reducing speeds leads to greater benefits than on roads where speeds have not been reduced. Your request has been considered in accordance with the requirements of the Freedom of Information (FOI) Act and our information access policy. I can confirm that we do hold the information you require. You asked: FOI-2617-2324 Could you provide accident/collision data for each of the last five years. Separated between the Southbury Road to Bullsmoor Lane average speed cameras / Southbury Road to Great Cambridge Road roundabout. For clarity this is for the A10 section between Great Cambridge Road roundabout to the Southbury Road junction. Please see the table below with a summary of collisions on the section of A10 from Great Cambridge junction roundabout to Southbury Road junction for the full 5 years 2018-2022. The table also includes collision numbers for 2023 to the end of June, the latest available. The 2023 data is provisional and subject to change. Full final 2023 data will be available around April of 2024. All collisions involve personal injury, we do not hold details of damage only collisions.
Number of collisions on the section of A10 from Great Cambridge junction roundabout to Southbury Road junction
2018
2019
2020
2021
2022
2023*
Total
Fatal
1
1
Serious
5
4
4
5
4
2
24
Slight
42
50
54
39
38
20
243
Total
47
54
58
44
42
23
268
*to end of June - provisional FOI-2620-2324 Could you provide accident/collision data for each of the last five years. Along the A10 section of the road from the Southbury Road to Bullsmoor Lane section of the road. Please see the table below with a summary of collisions on the section of A10 from Southbury Road junction to Bullsmoor Lane junction for the full five years 2018-2022. The table also includes collision numbers for 2023 to the end of June, the latest available. The 2023 data is provisional and subject to change. Full final 2023 data will be available around April of 2024. All collisions involve personal injury, we do not hold details of damage only collisions.
Number of collisions on the section of A10 from Southbury Road junction to Bullsmoor Lane junction
2018
2019
2020
2021
2022
2023*
Total
Fatal
2
2
Serious
6
7
4
3
3
23
Slight
44
40
27
32
18
17
178
Total
52
47
31
35
21
17
203
*to end of June – provisional Please note that collision data is also available on our website: Road Safety Data Reports. If this is not the information you are looking for, or if you are unable to access it for any reason, please do not hesitate to contact me. Please see the attached information sheet for details of your right to appeal. Yours sincerely Gemma Jacob Senior FOI Case Officer FOI Case Management Team General Counsel Transport for London
