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白昼行车灯是白天行车点亮的灯光系统。加拿大自1990年,瑞典自1977年以来,白昼行车灯就被强制性地装车使用。加拿大运输部(Transport Canada)估计,这个项目每年可搭救120条生命,可避免11000人受伤。美国公路安全保险协会说,白天多车相撞事故在瑞典减少了23％,在挪威减少40％,在芬兰减少37％。过去,在美国,白昼行车灯系统均为售后加装的。一些美国的公司规定
Daytime running lights are lighting systems that are lit during the day. Canada Since 1990, daytime running lights have been mandatory for Sweden since 1977. Transport Canada estimates that this project will save 120 lives a year and prevent 11,000 injuries. The Society for Highway Safety and Insurance said the number of car collisions during the day was down 23% in Sweden, 40% in Norway and 37% in Finland. In the past, daytime running lights were installed in the United States. Some U.S. company regulations