摘要：AbstractCurrently, the conception of Pavement Preventive Maintenance (PPM) has been accepted by more and more highway managers. The purpose of this study is to do a thorough and systematic research on the optimal strategy decision and Life- Cycle Cost Analysis(LCCA) of PPM during the whole life cycle of road.In the study, a certain section of Guangshao Freeway was taken as an example, and various data (pavement performance, traffic and climate conditions, economic indicators) were collected and integrated. Then by an in-depth analysis of the research data, “LCCA FOR PPM” was drew up using Visual Basic. Meanwhile, the PPM optimal strategy during a 20-year period was worked out. Finally, there was quantitative comparison of benefits among the optimal plan, traditional pattern and “do nothing” strategy (only with routine maintenance). Result confirms that PPM with optimal strategy shows huge superiority in both cost and benefit considering the whole life cycle of road.
关键词：Pavement preventive maintenance;Optimal strategy;Life-cycle cost analysis;Cost and benefit
