Green road evaluation system and its progression route -Case study of Hubei province, ChinaXueping Chen, Sihua Bai, Yangang Yang, Li Jian, Jialin Yao, Shuohan Gao, Qiong Wu and Yaping KongE3S Web Conf., 145 (2020) 02044DOI: https://doi.org/10.1051/e3sconf/202014502044