TRAFFIC FLOW MEASURING DEVICE

PURPOSE:To provide the traffic flow measuring device capable of measuring the traffic amount by cars without contacting and without necessitating large- scale construction. CONSTITUTION:A plurarity of ultrasonic transmitter-receivers 1 to 3 located at the prescribed height of a driveway, a means det...

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Bibliographische Detailangaben
Hauptverfasser:	YOSHIKAWA TAKASHI, HORIBATA NORIKO, SUEYOSHI FUTSUKI, SAKABA MASAJI, YANO YOSHIHARU, KAMIJO FUMIO, MATSUI HIROO
Format:	Patent
Sprache:	eng
Schlagworte:	PHYSICS SIGNALLING TRAFFIC CONTROL SYSTEMS
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Beschreibung
Zusammenfassung:	PURPOSE:To provide the traffic flow measuring device capable of measuring the traffic amount by cars without contacting and without necessitating large- scale construction. CONSTITUTION:A plurarity of ultrasonic transmitter-receivers 1 to 3 located at the prescribed height of a driveway, a means detecting the speed of a passing vehicle 6 based on the data from these plural ultrasonic transmitter-receivers 1 to 3, and a means measuring the traffic flow as well as discriminating several sizes of the passing vehicle based on the detection result of the speed detection means and height detection means, are provided.