Audi A4 and Suzuki Swift and BMW 4 Series crash on the A40 in Buckinghamshire - 17 Dec 2025
Accident reference 2025430639095
Accident summary
On Wednesday 17 December 2025 at 08:16 a slight collision occurred near A40, A412, Buckinghamshire involving 4 vehicles and 5 casualties (5 slight) Weather at the time was recorded as fine no high winds. Road surface conditions were wet or damp. Lighting was described as daylight. A police officer attended the scene.
Key details
- Posted speed limit: 50 mph
- Road type: Dual carriageway
- Junction: T or staggered junction
- Setting: Rural
Location
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Collision records on this page come from the Department for Transport's STATS19 data, which is published once a year, so a crash from today will not appear in the historical data yet. For today's incidents, check live A40 closures today.
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Basic Information
| Accident Reference | 2025430639095 |
| Police Reference | 430639095 |
| Date & Time |
Wednesday
|
| Severity | Slight |
| Vehicles Involved | 4 |
| Casualties | 5 |
| Police Force | Thames Valley |
| Police Officer Attended | Yes |
Road & Location Details
Junction Information
| Junction Detail | T or staggered junction |
| Junction Control | Auto traffic signal |
Environmental Conditions
| Light Conditions | Daylight |
| Weather Conditions | Fine no high winds |
| Road Surface Conditions | Wet or damp |
| Carriageway Hazards | None |
Enhanced Collision Data
| Injury Based Classification | Yes |
| Adjusted Serious Casualties | 0 |
| Adjusted Slight Casualties | 1 |
Nearby or similar collisions
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SlightVehicles (4)
Vehicle 2
Vehicle Information
| Type | Car |
| Make/Model | SUZUKI SWIFT |
| Engine Capacity | 1242cc |
| Fuel Type | Petrol |
| Left Hand Drive | Yes |
| Manoeuvre | Waiting to go - held up |
Driver Information
| Age | 54 |
| Sex | Female |
| Journey Purpose | Not known |
| IMD Decile | 7 (1=most deprived, 10=least deprived) |
Vehicle 1
Vehicle Information
| Type | Car |
| Make/Model | AUDI A4 |
| Engine Capacity | 1896cc |
| Fuel Type | Heavy oil |
| Left Hand Drive | Yes |
| Manoeuvre | Going ahead |
Driver Information
| Age | 27 |
| Sex | Male |
| Journey Purpose | Not known |
| IMD Decile | 9 (1=most deprived, 10=least deprived) |
Vehicle 4
Vehicle Information
| Type | Car |
| Make/Model | BMW 4 SERIES |
| Engine Capacity | 1998cc |
| Fuel Type | Petrol |
| Left Hand Drive | Yes |
| Manoeuvre | Waiting to go - held up |
Driver Information
| Age | 37 |
| Sex | Female |
| Journey Purpose | Not known |
Vehicle 3
Vehicle Information
| Type | Car |
| Left Hand Drive | Yes |
| Manoeuvre | Waiting to go - held up |
Driver Information
| Age | 43 |
| Sex | Male |
| Journey Purpose | Not known |
| IMD Decile | 8 (1=most deprived, 10=least deprived) |
Casualties (5)
Casualty 5
Basic Information
| Class | Driver or rider |
| Severity | Slight |
| Type | Car occupant |
| Age | 37 |
| Sex | Female |
| Associated Vehicle | Vehicle 4 |
Additional Details
Casualty 1
Basic Information
| Class | Driver or rider |
| Severity | Slight |
| Type | Car occupant |
| Age | 27 |
| Sex | Male |
| Associated Vehicle | Vehicle 1 |
Additional Details
| IMD Decile | 9 (1=most deprived, 10=least deprived) |
Casualty 4
Basic Information
| Class | Driver or rider |
| Severity | Slight |
| Type | Car occupant |
| Age | 54 |
| Sex | Female |
| Associated Vehicle | Vehicle 2 |
Additional Details
| IMD Decile | 7 (1=most deprived, 10=least deprived) |
Casualty 3
Basic Information
| Class | Passenger |
| Severity | Slight |
| Type | Car occupant |
| Sex | Female |
| Associated Vehicle | Vehicle 3 |
Additional Details
| Car Passenger | Front seat passenger |
| IMD Decile | 8 (1=most deprived, 10=least deprived) |
Casualty 2
Basic Information
| Class | Driver or rider |
| Severity | Slight |
| Type | Car occupant |
| Age | 43 |
| Sex | Male |
| Associated Vehicle | Vehicle 3 |
Additional Details
| IMD Decile | 8 (1=most deprived, 10=least deprived) |
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Data Source
This data is from the UK Department for Transport's STATS19 road safety dataset, available under the Open Government Licence v3.0.