|dc.description.abstract||Taiwan’’s overall social development and economic prosperity have long been recognized as part of the world’’s advanced countries. The road system in Taiwan, including highways, highway, provincial, county, township roads, urban roads, industrial road ... and so on, provides perfect classification and complete functions of the network system, so under the concept of pavement maintenance management system will enable government agencies to effectively monitor all kinds of destruction and all kinds of road conditions, and providing high quality service standards to serve the public. There are many studies have assessed the PMS used in highways and county and city governments, will assess the future more widely used in all levels of a road. Because of the geological conditions in Taiwan and each rainfall are concentrated in Rainy season and the typhoon season. This heavy rain causes the flexible pavement damage. As a result of the purpose of export-oriented economy, overloaded truck traffic flow considerably, make pavement extent of the damage. So that the road had deteriorated beyond the point of aggravating. The motorcycle penetration rate in Taiwan than in other countries to high, but for the safety of motorcyclists still lack consideration. In recent years, traffic accident has became one of the national economy burden. So really controlling the pavement condition and selecting the order of road maintenance is more important.
Purpose of this study is rating the quality of the road by Pavement Condition Index, PCI, but determines the PCI is so complex that it could easily lead to a serious extent, scope and misjudgment. Therefore this study using digital line scan camera set up in own R & D test car. The computer system and digital image technology render and store information on pavement images, and then the computer will automatically determine the imperfection including the type, severity, and deterioration. It could reduce the error of subjective judgments and offer a personalized, convenient and rapid system to replace the previous manual field surveys and measurements.