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  1. 1

    Traffic control for freeway maintenance.

    Udgivet 1969
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    Traffic control for freeway maintenance.
  2. 2

    Sensing and communication between vehicles af Rockwell, Thomas Hugh 1929-

    Udgivet 1968
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    Sensing and communication between vehicles
  3. 3

    Effect of control devices on traffic operations af Leisch, Jack E.

    Udgivet 1967
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    Effect of control devices on traffic operations
  4. 4

    Highway finance selected references, 1950-1953. af Hamlin, Ina M. b. 1896

    Udgivet 1954
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    Highway finance selected references, 1950-1953.

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