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13 December 2010





















Swedish DRL Study: results found spurious
Extract from: Theeuwes J, Riemersma J. Daytime running lights as a vehicle collision countermeasure: the Swedish evidence reconsidered.
     In Sweden the use of daytime running lights (DRL) was made mandatory on 1 October 1977 for all motor vehicles at once, during all seasons and for all areas. According to a study conducted by Andersson and Nilsson (1981) [Andersson and Nilsson. VTI Swedish Road and Transport Research Institute, Report No. 208A; 1981] the introduction of DRL resulted in a reduction of 11% of multiple accidents during daytime. In many discussions on the effectiveness of DRL, these findings have been considered as the strongest evidence that the use of DRL is an effective vehicle collision countermeasure. The present study re-examines this evidence and shows that the reported 11% effect of DRL in the Swedish study is spurious. The effect is mainly the result of the application of a model that shows selective effects of DRL through modelling of unexplained changes in the number of single accidents. It is concluded that the Swedish data fail to show a clear effect of DRL.
                            TNO Human Factors Research Institute, Soesterberg, The Netherlands
1995 ;27(5):633-642.

We receive hundreds of complaints a year about blinding vehicle lights - a few recent ones are listed here
Therefore we have made representations to Government and Manufacturers

Manufacturer Addressee DaDRL letters Responses

BMW GB Limited

Ellesfield Avenue


Berks  RG12 8TA


BMW AG 80788 Munchen  Germany


Mr Tim Abbott Managing Director

01344 426565




Helmut Panke  Chairman


BMW 20 Oct 2010




BMW Oct 2003






BMW Response Nov 2003


Mercedes Benz UK Ltd
Tongwell, Milton Keynes,
Buckinghamshire MK15 8BA


DaimlerChrysler UK Ltd
Tongwell, Milton Keynes,
Buckinghamshire MK15 8BA


DaimlerChrysler AG

70546 Stuttgart Germany




Simon Oldfield Managing Director


Ray Smith General Manager Daimler Chrysler

Dr Wilfried Steffen President & CEO DaimlerChrysler UK Ltd  


Jurgen E. Schrempp 

Chairman of the Board of Management



Mercedes-Benz 09 Nov 2010

Mercedes-Benz  01 Nov 2010



Daimler Chrysler Oct 2003




Mercedes-Benz response 08 Nov 2010



Daimler Chrysler response Nov 2003


Volvo Cars UK

Globe Park


Bucks  SL7 1YQ



Peter Rask Managing Director



Stuart Kerr Managing Director




Volvo 01 Nov 2010


Advice of DRL fatalities 02 Oct 2007
Request to desist Sep12 2007

 Volvo letters  2003 - 2005


Volvo response 03 Nov 2010


Volvo response 21 Sep 2007


Volvo response Oct 2003


Jaguar Land Rover

Banbury Road

Gaydon Warwick CV35 ORG


Jaguar Cars Ltd  Browns Lane
Coventry West Midlands  CV59DR


Carl-Peter Foster Managing Director



Mike Beasley Managing Director

Phil Cazaly Marketing Director


Jaguar Land Rover  01 Nov 2010



Jaguar Oct 2003



VW Group United kingdom Limited

Yeomans Drive


Milton Keynes  MK14 5AN



Chris Craft Managing Director


Paul Buckett

Head of Press and Public Relations


VW 01 Nov 2010




Porsche Cars (GB) Limited

Bath Road,
Reading RG3 7SE


Andy Goss  Managing Director



Porsche 01 Nov 2010



Ford Motor Company

Central Office

Eagle Way


Essex  CM13 3BW


Ford of Europe GMBH

Legal Governmental and Environmental affairs


Henry-Ford Strasse 1

D-50725  Koeln  Germany


David Thursfield President & CEO Ford Europe


Also Ford USA

William Clay Ford Junior Chairman

James P Vondale Director of Safety and Environmental Engineering


Dr. Wolfgang G. Schneider Vice President



Ford May 2002 + Nov 2003


Ford response 2002

Saab Great Britain Ltd

Fieldhouse Lane

Globe Park


Bucks  SL7 1LY

Jonathan Nash

Managing Director

Saab 1999 + Oct 2003


Vauxhall Motor Company

Osbourne House

Griffin road


Beds LU1 3YT

Kevin Wale

Managing Director



01582 427200

Vauxhall Oct 2003


Land Rover Ltd.

Lode Lane


West Midlands

B92 8NW

Bob Dover, chairman and chief executive of Land Rover. Land Rover Oct 2003 

Toyota GB Ltd

The Quadrangle


Surrey  RH1 1PX

Mr. R. Graham Smith, Managing Director

and CHAIRMAN Low Carbon Vehicle Partnership

01737 768585

Toyota Oct 2003 

Colt Car Company Limited



Gloucester GL7 1LF

David Miles

General Manager Press and Public Affairs.


As Toyota


Fiat Auto UK Limited

Fiat House

266 Bath road

Slough SL1 4HJ

Mr Massimo Toso

Managing Director


01753 511 431

 As Toyota


Nissan Motor (GB) Limited

The Rivers Office Park

Denham Way

Maple Cross


Herts  WD3 2YS


Brian Carolin

Managing Director


As Toyota 

Honda UK Ltd.

4 Power Road



W4 5YT

Mr Ken Keir

Chief Executive


Stephen Hollings

Marketing Director

As Toyota 

Hyundai Car (UK) Ltd.

St. Johns Place

Easton Street

High Wycombe

Bucks HP11 1NN

Mr David Walker

Managing Director


As Toyota 

Subaru (UK) Ltd

Ryder St,

West Bromwich

West Midlands  B70 0EJ

Sam Burton

Managing Director


As Toyota 

Bentley Motors Limited

Cheshire CW1 3PL

Dr Franz-Josef Paefgen
Chief Executive

01270 255155

As Toyota 
Rolls-Royce Motor Cars Limited
Stane Street
West Sussex PO18 0PA

Graham Biggs

Head of Corporate Communications

As Toyota 

Caterham Cars Limited
Station Avenue

Surrey  CR3 6LB

Simon Nearn

Managing Directo


As Toyota 

Peugeot Citroen Automobiles UK

PO box 227

Aldermoor House

Aldermoor Lane

Coventry  CV3 1LT

Mr Tod Evans




01203 884000

As Toyota 

Renault UK Limited

The Rivers Office Park

Denham Way

Maple Cross


Herts  WD3 2YS

Andrew Boyle

Press Officer


As Toyota