United States Department of Transportation
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Detector Location for Computerized Arterial Street Sampling Detectors
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1995-02-01
[PDF-650.32 KB]
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Edition:Interim: September 1993 - August 1994
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Abstract:This report provides a systematic method of identifying and evaluating sites for arterial street sampling detectors to compliment computerized traffic control on arterial streets. The research literature failed to identify significant written documents on the locations of arterial detectors. Contacts with several signal manufacturers and many engineers who have designed computerized signal systems produced no consistent method for detector location. One of the most significant findings is that the cost of detailed volume counts and correlation with downstream traffic problems commonly exceeds the cost of installing detectors at all tentative locations. The data collection and correlation can then be accomplished using the system. Recommended average sampling detector spacing is 800 meters (one-half mile) along the controlled arterial street.
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