Serious Mercedes A Class and Tesla Model Y and Kia Optima crash on the A1 in Borehamwood - 21 Mar 2025
Accident reference 2025411578642
Accident summary
On Friday 21 March 2025 at 17:35 a serious collision occurred near A1, A1(M), Borehamwood involving 4 vehicles and 2 casualties (1 serious, 1 slight) Weather at the time was recorded as fine no high winds. Road surface conditions were dry. Lighting was described as daylight. A police officer attended the scene.
Key details
- Posted speed limit: 70 mph
- Road type: Slip road
- 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 A1 closures today.
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Basic Information
| Accident Reference | 2025411578642 |
| Police Reference | 411578642 |
| Date & Time |
Friday
|
| Severity | Serious |
| Vehicles Involved | 4 |
| Casualties | 2 |
| Police Force | Hertfordshire |
| Police Officer Attended | Yes |
Road & Location Details
Environmental Conditions
| Light Conditions | Daylight |
| Weather Conditions | Fine no high winds |
| Road Surface Conditions | Dry |
| Carriageway Hazards | None |
Enhanced Collision Data
| Injury Based Classification | Yes |
| Adjusted Serious Casualties | 1 |
| Adjusted Slight Casualties | 0 |
Nearby or similar collisions
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SlightVehicles (4)
Vehicle 2
Vehicle Information
| Type | Car |
| Make/Model | TESLA MODEL Y |
| Fuel Type | Electric |
| Left Hand Drive | Yes |
| Manoeuvre | Overtaking static vehicle on its offside |
Driver Information
| Age | 54 |
| Sex | Male |
| Journey Purpose | Not known |
| IMD Decile | 8 (1=most deprived, 10=least deprived) |
Vehicle 4
Vehicle Information
| Type | Car |
| Make/Model | VOLVO XC90 |
| Engine Capacity | 1969cc |
| Fuel Type | Heavy oil |
| Left Hand Drive | Yes |
| Manoeuvre | Changing lane to right |
Driver Information
| Journey Purpose | Not known |
Vehicle 3
Vehicle Information
| Type | Car |
| Make/Model | KIA OPTIMA |
| Engine Capacity | 1685cc |
| Fuel Type | Heavy oil |
| Left Hand Drive | Yes |
| Manoeuvre | Parked |
Driver Information
| Age | 42 |
| Sex | Male |
| Journey Purpose | Not known |
| IMD Decile | 2 (1=most deprived, 10=least deprived) |
Vehicle 1
Vehicle Information
| Type | Car |
| Make/Model | MERCEDES A CLASS |
| Engine Capacity | 1461cc |
| Fuel Type | Heavy oil |
| Left Hand Drive | Yes |
| Manoeuvre | Changing lane to left |
Driver Information
| Age | 21 |
| Sex | Male |
| Journey Purpose | Not known |
Casualties (2)
Casualty 2
Basic Information
| Class | Driver or rider |
| Severity | Serious |
| Type | Car occupant |
| Age | 54 |
| Sex | Male |
| Associated Vehicle | Vehicle 2 |
Additional Details
| IMD Decile | 8 (1=most deprived, 10=least deprived) |
Casualty 1
Basic Information
| Class | Driver or rider |
| Severity | Slight |
| Type | Car occupant |
| Age | 21 |
| Sex | Male |
| Associated Vehicle | Vehicle 1 |
Additional Details
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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.