Author(s):
R.L. Wilshire, C.J. Keese
Publication Date
1963
Abstract
This report was developed from a research project conducted by the Texas Transportation Institute in cooperation with the Automotive Safety Foundation. The over-all objectives of the research project were (1) to study the effects of traffic accidents on freeway operation in the interest of improving the level of service, (2) to analyze and improve traffic control methods presently employed during the investigation of accidents, and (3) to promote better freeway accident reporting and greater interest on the part of police officials and investigating personnel in its attainment, so that more precise and complete information concerning accidents for engineering analyses could be provided.|The project was divided into two parts -- a questionnaire survey of one hundred and twenty-five cities involved in freeway accident investigation, and field studies on Texas freeways where actual accidents were observed. The questionnaire survey was used to determine techniques employed and personnel and equipment used in the investigation of freeway accidents.|The field studies made on freeways in five major Texas cities consisted of actual observation of freeway accidents and the recording on motion picture film of the freeway's operation at the accident scene. A study technique using two cameras was employed which allowed a determination to be made of the actual travel time of vehicles in the congestion caused by an accident. The method also gave a measure of the delay experienced by these motorists.
Report Number:
22
Link(s):
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