Application of Pavement Profile Scanner on Pavement Performance Analysis
Date Issued
2011
Date
2011
Author(s)
Tsai, Chen-Yu
Abstract
Pavement Management System is an essential tool for analyzing the pavement condition, forecasting future maintenance needs, and allocating the limited budget for roadway network. As for making the pavement management system works and improving the network performance, it is important to rapidly attain the real-time and correct pavement condition data.
To understand the representativeness of pavement roughness among different wheel path, improve the rutting measuring techniques and develop the manhole cover detecting function, this paper utilized the laser radar equipment Pavement Profile Scanner (PPS) for data collection. Firstly, researcher confirmed the reproducibility and accuracy of PPS by gauge blocks and specific reference beam. The measuring outcome showed that the reproducibility and accuracy of PPS satisfy the PPS specification and demand of displacement transducer in CNS 15371. Then, according to the characteristic of laser radar for PPS, this paper applied the visual c# and visual studio 2010 to develop the software program of full-lane roughness analysis, rutting analysis and algorithm of automatic manhole cover detecting.
Sample data collected from both PPS and NTU inertial profiler at the same time were analyzed and confirmed a high accuracy of roughness analysis comparison. On the other hand, PPS and straightedge were used to measure the rutting of selected test sections. The data comparing outcome showed that there are high reproducibility and accuracy of PPS rutting analysis software in terms of average rutting depth and rutting severity level. At last, after developing the algorithm of manhole cover identification, several features, such as quantity, position, shape, size, and elevation difference with surrounding pavement of manhole cover can be accurately analyzed by PPS automatic detecting function.
Subjects
Pavement Profile Scanner
Laser Radar
Roughness Analysis
Rutting Analysis
Automatic Manhole Cover Detecting
Pavement Maintenance Management
Type
thesis
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