柔性路面網級養護管理維修系統建立之研究

• Main Authors: Chi-Chiao Chang, 張其教
• Other Authors: Jyh-Dong Lin
• Format: Others
• Language: zh-TW
• Published: 2001
• Online Access: http://ndltd.ncl.edu.tw/handle/74518349000735944555

博士 === 國立中央大學 === 土木工程研究所 === 89 === The transportation vehicles gradually grew in site with growing economic developments, but the pavement management budget didn’t increase year by year. Furthermore, a complete pavement management system has not been constructed in most of the internal road authorities. In the principle of not increasing the maintenance activities of road agencies, this study focus on the present conditions in Taiwan and propose a structure for constructing a network-level pavement management. Pavement maintenance is according to the survey and evaluation of pavement distress condition. The present method of a fast and effective survey can be performed by on automatic road survey vehicle. However, this kind of equipment is not only high in cost but also needs to be operated by professional engineers. Consequently, the lower levels of road authorities won''t be able to afford it. In light of this standpoint, this study adopted the visual survey method. Combined with fuzzy mathematics, which is used to transform subjective visual judgment into objective evaluation, eighteen distress types of the membership functions are constructed. Based on these analyses, Pavement Condition Quality Index (PCQI) can be formulated which, after comparing with PCI(Pavement Condition Index), can be used to clarify that pavements are in good conditions, and can therefore be utilized as pavement maintenance criteria. As for pavement maintenance, because experienced pavement maintenance engineers in Taiwan are absent or retired, in order to continue maintenance operations, this study will pick out a pavement maintenance method, and using the MIS express method in the expert system, with credence from experienced experts, pavement management personnel can execute maintenance strategies according to the decision tree in actual inspections. In the past, the maintenance sections are normally determined by experienced engineers. Hence, the subjectivity can effect the decisions. In this study, factors such as traffic volume, PCQI, rainfall, etc. are considered. After finding the PI(Priority Index) value using fuzzy integrals method, analyzed by 0-1 integrated mathematical programming, and depending in the annual maintenance budget allocation, we can choose the maintenance sections for the year, which is more objective and less disputed. Although there are maintenance decision methods mentioned above, but without DBS(Data Base System) during execution, even a good method would become loss attractive. After merging the preceding analyses into the web geographic information system, road authorities can promote management tasks and the populace can acquire the road management informations and the road condition or construction sections. Traveling time can be saved by detouring these sections and the driving quality can also be improved.