In order to putting off the negative aspect of increasing of traffic, it must be rebuilt to low grade road. Especially to mountainous area, it was firstly one choose about rebuilding. A bit of thinking a-bout the rebuilding of mountainous low grade road is presented.
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卢彭真 洪飞 温井木. 对山区改建公路选线的研究[J]. 科学技术与工程, 2004, (12): 1056-1059. LU Pengzhen, HONG Fei, WEN Jingmu. The Studying to Select Route of Mountainous Area Rebuilding Road[J]. Science Technology and Engineering,2004,(12):1056-1059.