Mini Cooper and Sym Jet crash on the A4129 in Buckinghamshire - 11 Dec 2025
Accident reference 2025430629999
Accident summary
On Thursday 11 December 2025 at 18:08 a slight collision occurred near A4129, Buckinghamshire involving 2 vehicles (sym jet, mini cooper) and 1 casualty (1 slight) Weather at the time was recorded as fine no high winds. Road surface conditions were dry. Lighting was described as darkness - no lighting. A police officer attended the scene.
Key details
- Posted speed limit: 50 mph
- Road type: Single carriageway
- Junction: T or staggered junction
- Setting: Rural
Location
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Basic Information
| Accident Reference | 2025430629999 |
| Police Reference | 430629999 |
| Date & Time |
Thursday
|
| Severity | Slight |
| Vehicles Involved | 2 |
| Casualties | 1 |
| Police Force | Thames Valley |
| Police Officer Attended | Yes |
Road & Location Details
| Area Type | Rural |
| First Road | A4129 |
| Second Road | Unclassified road |
| Road Type | Single carriageway |
| Speed Limit | 50 mph |
| Trunk Road | Yes |
| Highway Authority | E06000060 |
| Current Highway Authority | E06000060 |
| LSOA Code | E01017676 |
Junction Information
| Junction Detail | T or staggered junction |
| Junction Control | Give way or uncontrolled |
Environmental Conditions
| Light Conditions | Darkness - no lighting |
| Weather Conditions | Fine no high winds |
| Road Surface Conditions | Dry |
| Carriageway Hazards | None |
Enhanced Collision Data
| Injury Based Classification | Yes |
| Adjusted Serious Casualties | 0 |
| Adjusted Slight Casualties | 1 |
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SeriousVehicles (2)
Vehicle 2
Vehicle Information
| Type | Motorcycle 125cc and under |
| Make/Model | SYM JET |
| Engine Capacity | 125cc |
| Fuel Type | Petrol |
| Left Hand Drive | Yes |
| Manoeuvre | Overtaking moving vehicle on its offside |
Driver Information
| Age | 18 |
| Sex | Male |
| Journey Purpose | Not known |
| IMD Decile | 8 (1=most deprived, 10=least deprived) |
Vehicle 1
Vehicle Information
| Type | Car |
| Make/Model | MINI COOPER |
| Engine Capacity | 1598cc |
| Fuel Type | Petrol |
| Left Hand Drive | Yes |
| Manoeuvre | Turning right |
Driver Information
| Age | 34 |
| Sex | Female |
| Journey Purpose | Not known |
| IMD Decile | 8 (1=most deprived, 10=least deprived) |
Casualties (1)
Casualty 1
Basic Information
| Class | Driver or rider |
| Severity | Slight |
| Type | Motorcycle 125cc and under rider or passenger |
| Age | 18 |
| Sex | Male |
| Associated Vehicle | Vehicle 2 |
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.