道路分担率  share ratio in road

汽车污染分担率  Vehicle emission’s contribution to pollution

污染分担率  pollutant on-shares; sharing ratio of pollution

道路污染  pollution

城市道路分类体系  Urban road hierarchy

城市道路路段  urban road section

城市道路路基  urban road subgrade

城市沥青道路路面  city bitumen road surface

道路分层  route hierarch

道路分层交汇处  grade-separated interchange

道路分割  road segment; lane segmentation; road segmentation

道路分级  roads classification; road grading; classification of urban roads; classification of highways and roads

道路分类  road classification

道路路工程  Road engineering

道路路基  embankment; Road　subgrade; Roadbed

道路路面  Road pavement

道路路面数据  road surface data

道路路堑  highway cut

第一分路道岔  First shunting turnout