| Title | Pilot Project for Development of Pavement Performance Measurement Equipment |
| Dept | Transportation Engineering, Maritime and Air Transport Division |
| Year | 2005 |
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| Price | |
| Summary | In order to improve the pavement quality, software and hardware for pavement management system have been either developed/introduced to Taiwan roadway agencies in the recent years. However, due to the reasons of no unified smoothness index, high cost of roughness measuring equipment, and the complexity of equipment operation the roughness measurement for roadway network has not been broadly adopted yet. Therefore, it is hard to correlate the riding quality to the user comfort directly. This study consists of two major parts, i.e. the development of a reliable but handy equipment for data collection of riding quality and establishment of an appropriate index for quantifying the pavement condition. The equipment is composed of one accelerometer, global positioning system, and data acquisition system. It meets the given criteria of budget constraint. Through a series of field tests, the equipment has proven stable and meaningful by comparing with the data collected from National Taiwan University Laser Profilometer. Furthermore, the installation is time efficient and with the characteristics of light weight and portability. It is concluded that the developed prototype equipment, pavement quality measuring system (PQMS), can facilitate the pavement riding quality measurement as its basic needs. Field data collected from city roads, provincial highway, and freeway network are used to calibrate the PQMS. A pavement riding quality index, PRQI, is then developed by adopting the concept of ISO 2631 as well as its appendix C. Five levels are specified to the index value, i.e. very comfortable, comfortable, uncomfortable, rather uncomfortable, and extreme uncomfortable. It is recommended that this system shall be used as the first step to classify the pavement condition, and roadway agencies can take a more detailed exam for sections which are classified as the bottom two levels. |
| Post date | 2005/11/29 |
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