TRANSPORT: Wriggle Roads

A doctor once told City Traffic Engineer Ralph Dorsey of Los Angeles that in night driving a motorist's eyes become so sensitized to the white stripe painted down the middle of many highways that he follows it automatically, is thus likely to be drawn into intersectional crashes. The doctor suggested that there should be a signal to the eye which would warn the brain of an intersection ahead. Last week, Engineer Dorsey's idea of a good signal was amazing drivers at some dozen dangerous crossings in Los Angeles' San Fernando Valley section....

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