Word: pacer
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Dates: during 1970-1979
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...ramp and whether there are gaps available for them on the highway. When a space shows up, the computer begins lighting the string of green lights in sequence at the proper speed, producing a pacing light that moves up the ramp. The motorist need only follow the pacer light by about a car length; theoretically he will then reach the freeway in time to swing into the space allotted him. If no gaps are available, cars are stopped up to 15 seconds at one of the three traffic lights while the computer "looks" for an opening. Should there still...