The Effect of Inertial Profiler Vehicle and Speed on Detection Performance
Date Issued
2011
Date
2011
Author(s)
Shih, Ya-Jung
Abstract
The smoothness specification of roadway construction is specified for using 3-meter straightedge or high-low detector in Taiwan, which cost lone time and human consuming. And both maximum heave and dip of each measurement and standard deviation of one measured section are difficult to express the roughness of the whole road. Lead to the measurements even met the acceptance criteria of the pavement surface, but not necessarily met pavement service level requirements.
Inertial profilers can detect the road continuously, high detection efficiency and the international roughness index output representative, which can be used for large-scale road network data collection, to assess pavement service levels to build the road pavement management system.
However, the existing high-speed inertial profiler''s built because of its cost (including vehicles, fixtures and equipment) was higher for many parts of the road management agencies which were frequently faced with inadequate funding. It was difficult to promote the inertial profilers widely used in road roughness detection. In view of this, to implement the use of inertial profilers, lightweight inertial profiler emerged.
In the study, Scooter inertial profiler measurements on the repeatability and accuracy can’t pass the standard threshold because of the slow speed. Therefore, this study was to develop an auxiliary wheeled motorcycle inertial profiler, and in seven different speeds control cases, the analysis of the detection data for equipment certification and power spectral density analysis.
The analysis showed that when the detection speed higher, the auxiliary wheel motorcycle inertial profiler equipment certification results better. And through the power spectral density analysis showed that, when detected speed higher, the long-wavelength power higher.
Subjects
Inertial profiler certification
scooter inertial profiler
auxiliary wheeled motorcycle inertial profiler
detection speed
power spectral density
Type
thesis
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