Research Article
Jan 1922
Highway Transportation
Publication: Transactions of the American Society of Civil Engineers
Volume 85, Issue 1
Abstract
A recent study on the State highways of California made by the United States Bureau of Public Roads, discloses the average week-day traffic units to be divided in the ratio of 97.3% motor-driven and 2.7% horse-drawn. This result is quoted to indicate the degree to which, as rural pavement mileage is completed on the principal traffic lines of the State, highway transportation is measured in terms of the motor-driven vehicle. An adequate background, therefore, against which to project the discussions on highway transportation, is furnished by a brief resume of the growth in the number of the major traffic units, motor vehicles, and the development of the roadways over which to operate these units.
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Published In
Transactions of the American Society of Civil Engineers
Volume 85 • Issue 1 • January 1922
Pages: 1035 - 1038
Copyright
© 1922 American Society of Civil Engineers.
History
Published in print: Jan 1922
Published online: Feb 10, 2021
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Authors
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Thomas H. MacDonald
Director, U. S. Bureau of Public Roads, Washington, D. C.
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