改革开放以来,随着社会经济的发展,四川公路在数量与质量方面,都有了很大的变化。每年以1280公里的速度递增,扩宽、改善公路3.1万公里;改建20个大中城市进出口公路180多公里;改造100多个县城、300多个场镇过境公路600多公里;重点整治干线油路1200多公里;新建通过快、容量大的二级以上高等级公路2870多公里,独立大桥39座,初步构成了公路网络骨架,特别是 Since the reform and opening up, with the social and economic development, the number and quality of Sichuan highways have undergone great changes. Each year, it will increase, expand and improve 31,000 km of highways every year at a speed of 1,280 km; rebuild over 180 km of import and export highways in 20 medium and large cities; transform more than 100 county towns and over 600 cross-border roads of more than 600 towns; More than 1,200 kilometers of oilway; newly built over 2870 kilometers of secondary and higher-grade highways with high capacity and capacity and 39 independent bridges initially formed the skeleton of highway network, especially