Over the centuries, land travel has evolved from foot to wheel to self-propelled vehicle. With each advance in mode, there has ensued a dramatic revolution in distance, time, and travel pattern. Within memory there was a period of relatively little travel as compared to the motor vehicle age. Man lived a quiet life in the neighborhood of his birth, enjoying more of friendship than of travel and fame. Rarely did he travel far. With the motor vehicle came a system of improved roads. The accompanying mobility extended the opportunity and orbit of travel. Though the average trip length now does not exceed fifteen miles, the frequency of both long and short trips has greatly increased. Mode of travel influenced the habitat of man-from nomad to urbanite to suburbanite. The motor vehicle has made it possible for man to satisfy an innate desire: to live where he may enjoy the land and yet retain the special cultural and commercial benefits of the city.
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United States Department of Transportation
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