Maintenance Strategy at Track Surface Irregularity Focused on Passengers'Comfort and Rationalization of Maintenance

轨道表面(铁轨、路面等)的养护水平决定着运输的安全性和乘客的舒适度，而养护技术在铁路工程领域和公路工程领域都是独立发展起来的。本研究的最终目标是开发出既适用于铁路轨道又适用于公路路面的路面不平度评价与控制系统。作为实现这一目标的准备工作，作者从低、现象、技术、运营、组织、经济等方面对公路(包括高速公路)和铁路(包括新干线)的整个养护体系进行了回顾，找出了养护的共同系统流程和未来的技术研究重点。然后，从轨道表面状况指标、不平顺过程特征、轨道养护效果等方面对其进行了分类。

Safety of transport and also passengers'comfort depend on maintenance level of track surface (railway track, road pavement etc.), however, that maintenance technology have developed independently in railway engineering field and highway engineering field. Final objective of this study is to develop estimation and control system for surface irregularity which can be applied generally both on railway track and road pavement.In this study as the preparatory srep for achieving the former objective, the authors review whole maintenance system in highway (inclyding expressway) and railway (including Shinkansen) from the view of low, phenomenam, technology, operation, organization, economy etc., and find the common systematic flow of maintenance and future technical research points. Then, authors clarify them by following categories, 1) indices of track surface condition 2) characteristics of irregularity process 3) effectiveness of track maintenance etc.