Davidc said:Daytime lights are an excellent idea and reduce accidents, so why not make always-on lights compulsory? (See German, Danish, French, Netherlands, etc. research)
Be careful as this is not entirely true, i depends on the accident type
The studies as a whole are varied, some types of accidents such as rearend collisions actually increased by 20% in one study(1) and a 16% pedstrian / vehicle accident increase (2)
1. Elvik, R.: The effects on accidents of compulsory use of daytime running lights for cars in Norway. Accid Anal Prev 25: 383-398 (1993).
2. Hansen, L. K.: Daytime running lights in Denmark--Evaluation of the safety effect. Danish Council of Road Safety Research, Copenhagen, 1993; Hansen, L. K.: Daytime running lights: Experience with compulsory use in Denmark. Fersi Conference, Lille, 1994.
2.