Also from motorists.org :
It all started with a Greyhound Bus Company public relations gimmick to promote its "safety image." There was an apparent reduction in bus accidents and the conclusion was made that the daytime headlight use must be the reason. There was a burst of publicity and daytime headlight use was christened as a great highway safety strategy. A subsequent study, slightly more thorough, determined that daytime headlight use on busses had no effect on accident frequency. That study never got much attention.
I wish they would have linked to the 2nd study to save their readers the effort...
I did see one site claiming a study found DRLs reduced accidents with pedestrians. Here it is - WARNING, link is to a pdf file, may be annoying to 56K users:
http://www.tarweblog.com/membersonly/view_attachment.cfm?twattachmentid=57 I like how we can find studies online to back up any position one might take on any subject....
