公路工程施工养护作业机械市场需求展望张光义（浦源工程机械总厂常德）１概述我国的交通运输业在世界上处于十分落后的地位。铁路人均只有４ｃｍ多一点，不到半支烟长；路面公路人均不到１ｍ长，只及发达国家的５％，而且公路技术等级低、路况差。一、二级公路只占公路总... Prospects for market demand for highway construction maintenance and maintenance machinery Zhang Guangyi (Puyuan Engineering Machinery Plant Changde) 1 Overview China’s transportation industry is in a very backward position in the world. The per capita railway is only a little more than 4cm, and less than half a cigarette is long; the per capita road and road length is less than 1m long, only 5% of that in developed countries, and the highway technology is low in grade and poor in road conditions. First, secondary roads only account for the total road...