METHOD FOR MEASURING ROAD SURFACE PROPERTIES

PROBLEM TO BE SOLVED: To provide a method for measuring inexpensive road surface properties capable of measuring the road surface properties, using less working labor and time. SOLUTION: In this method for measuring road surface properties, flatness σ, track drill depth D, and crack rate C as the re...

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Bibliographische Detailangaben
Hauptverfasser:	HAYASHI TORU, HORI MICHIHIRO, SUZUKI SHUSUKE, SEKIYA MICHI, TAKAHASHI YOSHIHIRO, SUMIYA EIICHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE FIXED CONSTRUCTIONS MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for measuring inexpensive road surface properties capable of measuring the road surface properties, using less working labor and time. SOLUTION: In this method for measuring road surface properties, flatness σ, track drill depth D, and crack rate C as the reference for repair of the road surface are measured. A vehicle 3, having a vibration measuring apparatus 2, is made to travel at a constant speed, the frequency in a predetermined segment of a measured road surface 1 is detected, the flatness property σ in the segment is determined from the frequency, based on the correlation table of the flatness properties, with respect to the previously formed frequency, thereby measuring the flatness σ. COPYRIGHT: (C)2008,JPO&INPIT