By analyzing the current hierarchical structure determination method of the rural road network, this paper indicates that the grey problems existed in priority order optimization objectives of current hierarchical structure determination method of the rural road network, technical coefficient and resource constraints in constraint conditions. Focusing on these problems, hierarchical structure of the rural road network of gray muti-objective optimization model is proposed. Based on this model, the planner can get a satisfy and feasible solution in the presence of the grey problems existed in hi...
