Research on Vibration Index of IRI Detection Based on Smart Phone

Abstract With the development of science and technology, intelligent pavement smoothness detection becomes possible. Intelligent IRI (International Roughness Index) is one important directions performance detection. Different from traditional detection, uses smart phones to collect traffic vibration data. There are many indexes in evaluation unit driving data, can be realized by extracting indexes. In this study, corresponding relationship between data preliminarily proved test. The synthetic acceleration index reflect change IRI. length reflects different significance performance, extracted different. When short, local unit, correlation minimum value vehicle best. long, overall average absolute