机译:FEASIBILITY-BASED DESIGN MODEL FOR ROAD VERTICAL ALIGNMENT
Tianjin Urban Construct Design Inst, Tianjin, Peoples R China;
Changan Univ, Sch Highway, Xian, Peoples R China;
China Railway Design Corp, Highway & Municipal Engn Div, Tianjin, Peoples R China;
Road design; vertical alignment; feasibility-based design model; design constraints; feasible region;