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#14
January 14th 05, 01:29 AM
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On Thu, 13 Jan 2005, N8N wrote:
> > reaction to brake lights is quicker when they are combination > > brake/tail units. Your way (with P21 bulb) would also take away your > > sideward visibility of the taillamp/sidemarker, which is definitely a > > step backwards. > Any reason for that assertion? Eyetracker research shows that observers' eyes "prime" on the taillamps and react faster when a taillamp they're already paying attention to gets 5x brighter, than they do when the taillamp stays the same and another red light comes on in a different location. The amount of difference is fairly well related to the distance between the tail and brake functions, which means Volvo has got it wrong. 
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