【摘要】 对旧路进行加宽改造是提高既有道路等级和改善路网结构的有效措施,不仅能够解决当前投入的资金困难,又能快速满足日益增长的交通需求。论述了道路改扩建工程的特点与含义,对道路改扩建工程进行了技术经济分析,提出了道路改护建工程应采用的原则和道路改扩建工程具有较高技术经济价值。更多还原

【Abstract】 The road reconstruction and extension project means the upgrading of the road grade and perfecting the road net structure. The designs for road reconstruction and extension is to resolve the difficulty of fund and meet the increasing demand of road. It has more high tec-economy value. This paper introduces the characteristics of the road reconstruction and extension projects and attempts to make the technical analysis, at last intends to suggest the principles for economic analysis.更多还原