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http://en.m.wikipedia.org/wiki/Daytime_running_lamp#section_2
umerous studies done worldwide since the 1970s have tended to conclude that daytime running lights improve safety.[1] [2] [3] A 2008 study by the U.S. National Highway Traffic Safety Administration analysed the effect of DRLs on frontal and side-on crashes between two vehicles and on vehicle collisions with pedestrians, cyclists, and motorcyclists. The analysis determined that DRLs offer no statistically significant reduction in the frequency or severity of the collisions studied, except for a reduction in light trucks' and vans' involvement in two-vehicle crashes by a statistically significant 5.7%.[4]
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anonym (Anonym) 
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11 ก.ค. 55 17:02:17
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