20 0 2年金秋 9月 ,我国第一条沙漠高速公路“国道 2 1 0陕蒙界高速公路”(半幅 )在陕西榆林建成。这条路是国家规划的“两纵两横”公路干线在陕西境内的一段 ,也是陕西“米”字型公路网主骨架的重要组成部分。陕蒙高速公路经批准立项 ,于 2 0 0 0年 1 0月开工 ,工程南起榆林市 In September 2002, the first desert expressway in China, “National Highway 210 Shaanxi-Mongolia Expressway” (half-width) was completed in Yulin, Shaanxi Province. This road is a section of the “two vertical and two horizontal” highways planned by the state in Shaanxi Province and an important part of the main skeleton of the “m” -shaped highway network in Shaanxi. Shaanxi-Mongolia Expressway approved the project, started in January 2010, the project started from Yulin City