The objective of this project was to develop standard definitions in regard to what constitutes a traffic conflict and to design a data collection procedure that will minimize individual differences in the observation and recording of conflicts. Midwest Research Institute has fulfilled that objective through a state-of-the-art review; development of candidate definitions; comprehensive field studies (including the recruitment and training of conflicts observers); and, following an assessment of the collected data and the field procedures, documentation of the findings in a form for direct use both in other research projects and in practical applications. This report provides sufficient information for individuals having no prior experience in the use of the technique to initiate new applications. The procedures manual, instructor's guide, and sample data collection forms provided in the appendixes should be particularly useful. (Author).
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