← Data Platform M621 blackspot analysis All blackspots Road Safety Report — M621
UK Traffic Updates · Road Safety Intelligence · 24 September 2026

Road Safety Report

M621 — 22 March 2020 to 27 December 2025

Data Source: DfT STATS19 Police-Recorded Collision Data · OGL v3.0 · Generated 24 September 2026
127Total Collisions
1Fatal
173Casualties
6Years of Data
1. Executive Summary
30
UKTU Danger Score / 100
Moderate Risk

This report covers 127 police-recorded collisions on the M621 between 22 March 2020 and 27 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, 1 were fatal (0.8%), 22 were serious (17.3%), and 104 resulted in slight injuries. A total of 173 casualties were recorded across 253 vehicles.

The UKTU Danger Score of 30/100 is calculated from collision frequency, fatality count, severity ratio, and total casualty count.

127Collisions
1Fatal
22Serious
104Slight
173Casualties
50mphAvg Speed Limit
2. Year-on-Year Trend

📈 Increasing — collisions increased from 11 to 29

2020
11
12 cas
2021
24
33 cas
2022
31
43 cas
2023
19
25 cas
2024
13
19 cas
2025 (1F)
29
41 cas
4. Collision Conditions Analysis

🌤️ Weather Conditions

Fine no high winds
96
Raining no high wind
19
Fine + high winds
4
Raining + high winds
3
Other
2
Snowing no high wind
2

🛣️ Road Surface

Dry
82
Wet or damp
40
Snow
2
Frost or ice
2
Flood over 3cm
1

💡 Light Conditions

Daylight
92
Darkness - lights lit
31
Darkness - no lighting
2
Darkness - lighting un
1
Darkness - lights unli
1

🚦 Speed Limit Zones

50mph
46
70mph
36
30mph
34
40mph
8
60mph
2
20mph
1
5. Day of Week Pattern
Sun
15
15
Mon
13
13
Tue
16
16
Wed
27
27
Thu
17
17
Fri
26
26
Sat
13
13
6. Vehicle Types Involved
Car
204
204
Van/Goods 3.5t or under
19
19
Goods over 3.5t under 7.5t
9
9
Motorcycle over 500cc
4
4
Bus or coach
4
4
Pedal cycle
4
4
Other vehicle
2
2
Goods 7.5t and over
2
2
7. Fatal Collision Records (1)
ReferenceDateTimeJunctionSpeedWeatherCasualtiesVehicles
2025131559693 01 Mar 2025 00:31 Not at junction 70mph Fine no high winds 4 2