This report is oriented to: 1. Research and development in highway transportation under sponsorship of the Bureau of Public Roads. 2. Traffic operations and control aspects of highway transportation. 3. Importance of combining vehicle engineering and human engineering along with highway engineering and human engineering along with highway engineering in programs to improve the service, effectiveness, and safety of highway traffic operations. This report describes how new traffic systems are developing, what they consist of, and how they will be of benefit.
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