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UK Traffic Updates · Road Safety Intelligence · 24 September 2026

Road Safety Report

A421 — 3 January 2020 to 19 December 2025

Data Source: DfT STATS19 Police-Recorded Collision Data · OGL v3.0 · Generated 24 September 2026
410Total Collisions
7Fatal
595Casualties
6Years of Data
1. Executive Summary
74
UKTU Danger Score / 100
Very High Risk

This report covers 410 police-recorded collisions on the A421 between 3 January 2020 and 19 December 2025. The data is sourced from the Department for Transport STATS19 dataset and reflects incidents reported to police forces across England and Wales.

Of these collisions, 7 were fatal (1.7%), 79 were serious (19.3%), and 324 resulted in slight injuries. A total of 595 casualties were recorded across 833 vehicles.

The UKTU Danger Score of 74/100 is calculated from collision frequency, fatality count, severity ratio, and total casualty count.

410Collisions
7Fatal
79Serious
324Slight
595Casualties
60mphAvg Speed Limit
2. Year-on-Year Trend

📉 Decreasing — collisions decreased from 68 to 59 over the period

2020 (2F)
68
92 cas
2021 (2F)
71
123 cas
2022 (1F)
73
103 cas
2023 (2F)
62
87 cas
2024
77
112 cas
2025
59
78 cas
4. Collision Conditions Analysis

🌤️ Weather Conditions

Fine no high winds
345
Raining no high wind
47
Fine + high winds
5
Other
4
Raining + high winds
4
Fog or mist
3

🛣️ Road Surface

Dry
307
Wet or damp
88
Frost or ice
6
Flood over 3cm
2

💡 Light Conditions

Daylight
277
Darkness - lights lit
61
Darkness - no lighting
40
Darkness - lighting un
29
Darkness - lights unli
3

🚦 Speed Limit Zones

70mph
217
60mph
99
40mph
48
30mph
29
50mph
16
20mph
1
5. Day of Week Pattern
Sun
41
41
Mon
58
58
Tue
71
71
Wed
48
48
Thu
67
67
Fri
62
62
Sat
63
63
6. Vehicle Types Involved
Car
617
617
Van/Goods 3.5t or under
70
70
Goods over 3.5t under 7.5t
44
44
Motorcycle over 500cc
28
28
Motorcycle 125cc and under
22
22
Goods unknown weight
13
13
Goods 7.5t and over
10
10
Pedal cycle
9
9
7. Fatal Collision Records (7)
ReferenceDateTimeJunctionSpeedWeatherCasualtiesVehicles
2023430404494 09 Sep 2023 16:07 Not at junction 70mph Fine no high winds 2 3
2023430274972 02 Jun 2023 12:49 Not at junction 60mph Fine no high winds 1 2
2022401142320 09 Feb 2022 20:55 Not at junction 70mph Fine no high winds 1 1
2021401105327 01 Nov 2021 07:59 Not at junction 70mph Fine no high winds 3 3
2021430486908 28 Oct 2021 15:01 Not at junction 60mph Fine no high winds 1 2
2020401010057 24 Dec 2020 19:37 Not at junction 70mph Fine no high winds 2 1
2020430013712 09 May 2020 21:48 Not at junction 70mph Fine no high winds 1 1