Changing patterns of urban travel Part 2. public transport and future patterns of travel

This two‐part paper contains most of a report prepared by TRRL for the European Conference of Ministers of Transport, and presented by one of the authors to the Council of Ministers in November 1984. Part 1, which was published in the January‐March 1986 issue of Transport Reviews, looked at the way cities have been changing over the years and the influence of growing car ownership on trip patterns. This part examines the changes in public transport use in more detail, considers the interactions between the various underlying trends, speculates on future travel patterns by both public and private means and considers the likely impact of land use and transport policies.     

涂敷层（覆层）的创新延长管线寿命

由于钢材、涂敷材料、土建工程和其他附件价格的走高，新管线项目造价已上涨，优化项目造价的唯一方法是采用特殊材料和最佳的设计、安装、检验、雉护和检修经验来降低弄命成本。