M4 crash in Slough on 18 August 1999 at 12:20 involving a Mercedes bus
- Severity
- Slight
- Date
- 18 Aug 1999
- Wednesday, 12:20
- Vehicles
- 2
- Mercedes and car
- Casualties
- 5
- 5 slightly injured
Location of the crash
Police recorded the crash at latitude 51.4939, longitude -0.50676, in the SL0 postcode district.
Map of where the crash happened in Slough
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- 1 crash
- Slight
Collision details
Basic information
- Reference
- 199943R217089
- Council area
- Slough
- Police force
- Thames Valley
- Police attended the scene
- Yes
Road and location details
- First road class
- Motorway
- First road number
- 4
- Road type
- Dual carriageway
- Speed limit
- 70 mph
- Urban or rural
- Rural
- Trunk road
- Trunk road (National Highways)
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
- Daylight
- Weather
- Raining, no high winds
- Road surface
- Wet or damp
The 6 nearest recorded crashes
The nearest, 11 metres away, was a slight injury crash on 10 January 2023.
Slight
Vauxhall Astra crash on the M4 in Slough, 10 January 2023
11 m awayRef 2023430013222
Slight
Scania crash on the M4 in Slough, 22 March 1996
14 m awayRef 199643R075036
Slight
Ford Focus crash on the M4 in Slough, 4 September 2011
20 m awayRef 201143R020091
Slight
Van crash on the M4 in Slough, 3 October 2025
25 m awayRef 2025430505508
Slight
Toyota Avensis crash on the M4 in Slough, 7 August 2007
30 m awayRef 200743R049087
Slight
Nissan crash on the M4 in Slough, 21 August 2022
31 m awayRef 2022430374753
Vehicles involved (2)
Vehicle 1: Mercedes
Bus or coach (17 or more seats)
- Manoeuvre
- Going ahead
- Travelling from
- West
- Travelling to
- East
- Skidding and overturning
- Skidded
- First point of impact
- Front
- Driver sex
- Male
- Driver age
- 55 years
- Engine capacity
- 3,972 cc
- Fuel or propulsion
- Diesel
- Vehicle age
- 4 years
Vehicle 2: Car
- Manoeuvre
- Waiting to go ahead
- Travelling from
- West
- Travelling to
- East
- First point of impact
- Back
- Driver sex
- Male
Casualties (5)
Casualty 1: Passenger
SlightFemale, aged 52, bus or coach occupant, in vehicle 1 (Mercedes)
- Bus or coach passenger
- Seated passenger
Casualty 2: Passenger
SlightFemale, aged 14, bus or coach occupant, in vehicle 1 (Mercedes)
- Bus or coach passenger
- Seated passenger
Casualty 3: Passenger
SlightFemale, aged 10, bus or coach occupant, in vehicle 1 (Mercedes)
- Bus or coach passenger
- Seated passenger
Casualty 4: Passenger
SlightFemale, aged 8, bus or coach occupant, in vehicle 1 (Mercedes)
- Bus or coach passenger
- Seated passenger
Casualty 5: Passenger
SlightFemale, aged 18, bus or coach occupant, in vehicle 1 (Mercedes)
- Bus or coach passenger
- Seated passenger
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 199943R217089 in the data published on GOV.UK under the Open Government Licence v3.0, and one of the crashes counted in the Slough road accident statistics for 1999.