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- W1526393689 abstract "The development and validation of a manual survey method for the measurement of performance at signalized intersections are described. The method is easy to use in the field and simply requires that queue lengths and flows be measured at particular times within each cycle of the traffic signals on each approach being surveyed. The output of the program includes frequency distributions and summary statistics for measures of approach delay, stopped delay, stationary queue length, and various definitions of vehicular stops. The validation of the survey method was performed by comparison of survey measurements with measures obtained from a videotape recording of intersection operation. The comparison was performed in two stages. First, results obtained from the field method were compared with results obtained by viewing a videotape of the same traffic stream and extracting the survey data from the videotape. This comparison identified the field observer error in the survey method. Second, the results obtained by using the survey method with the videotape were compared with detailed path-trace information obtained from the same videotape. This comparison identified the theoretical error in the analysis calculations associated with the survey method. The comparison shows that the field survey method produced negligible observer error while the theoretical error in the survey method was quite small and well within the bounds dictated by practical traffic engineering requirements. It is concluded that the survey method is a simple, yet accurate, way of determining signalized intersection performance levels. (Authors)" @default.
- W1526393689 created "2016-06-24" @default.
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- W1526393689 date "1982-01-01" @default.
- W1526393689 modified "2023-09-28" @default.
- W1526393689 title "VALIDATION OF SIGNALIZED INTERSECTION SURVEY METHOD" @default.
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