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CrashStats

Serious A1 crash in Hertsmere on 29 December 2025 at 19:30 involving a Honda Jazz

A motorcycle and a Honda Jazz were involved in a crash on the A1 in Hertsmere at 19:30 on Monday 29 December 2025. The 49-year-old male rider of the motorcycle was seriously injured.

It happened after dark under street lighting in fine weather on a dry dual carriageway with a 70 mph limit, away from any junction.

Severity
Serious
Date
29 Dec 2025
Monday, 19:30
Vehicles
2
Motorcycle and Honda Jazz
Casualties
1
1 seriously injured

Location of the crash

Police recorded the crash at latitude 51.65008, longitude -0.25091, in the WD6 postcode district.

Map of where the crash happened in Hertsmere

Use the arrow keys to move the map and the plus and minus keys to zoom.

  • 1 crash
  • Serious

Collision details

Basic information

Reference
2025011726980
Council area
Hertsmere
Police force
Metropolitan Police
Police attended the scene
Yes
Highway authority
Hertfordshire

Road and location details

First road class
A
First road number
1
Road type
Dual carriageway
Speed limit
70 mph
Urban or rural
Rural
Trunk road
Non-trunk road

Junction information

Junction type
Not at junction or within 20 metres

Pedestrian crossing information

Crossing facilities
No physical crossing facility within 50 m

Environmental conditions

Light conditions
Dark, street lights lit
Weather
Fine, no high winds
Road surface
Dry

Enhanced collision data

Serious injury band
Less serious
How severity was recorded
From injuries recorded by police (CRASH system)
Estimated chance it was serious
100%
Estimated chance it was slight
0%

The 6 nearest recorded crashes

The nearest, 15 metres away, was a slight injury crash on 9 September 1985.

Vehicles involved (2)

  • Vehicle 1: Motorcycle

    Motorcycle 125cc and under

    Manoeuvre
    Going ahead
    Travelling from
    South
    Travelling to
    North
    Position at junction
    Not at or within 20 metres of junction
    First point of impact
    Front
    Left-hand drive
    No
    Journey purpose
    Commuting to or from work
    Driver sex
    Male
    Driver age
    49 years
    Engine capacity
    125 cc
    Fuel or propulsion
    Petrol
    Driver home area deprivation
    30 to 40% most deprived
    Distance from driver's home
    10 to 20 km

  • Vehicle 2: Honda Jazz

    Car

    Manoeuvre
    Going ahead
    Travelling from
    South
    Travelling to
    North
    Position at junction
    Not at or within 20 metres of junction
    First point of impact
    Back
    Left-hand drive
    No
    Journey purpose
    Personal business or leisure
    Driver sex
    Male
    Driver age
    71 years
    Engine capacity
    1,498 cc
    Fuel or propulsion
    Hybrid electric
    Driver home area deprivation
    40 to 50% most deprived
    Distance from driver's home
    Within 5 km

Casualties (1)

  • Casualty 1: Rider

    Serious

    Male, aged 49, motorcyclist (125cc and under), on vehicle 1 (Motorcycle)

    Serious injury band
    Less serious
    Home area deprivation
    30 to 40% most deprived
    Distance from home
    10 to 20 km

Data source

This record comes from the Department for Transport’s road safety data (STATS19), in which police forces in Great Britain record every road crash reported to them where someone was injured. It is reference 2025011726980 in the data published on GOV.UK under the Open Government Licence v3.0, and one of the crashes counted in the Hertsmere road accident statistics for 2025.