Evaluation of Land Economical Use for Expressway Construction

In the light of the scarcity of the land resource of China, the research on economical use of land for expressway construction has great practical significance. This paper firstly defines the concept and connotation of land economical use on micro-level, then constructs a set of evaluation index system for expressway land economical use with regard to the quantity of the covered land, the structure, function and efficiency of land use. This paper further determines the standard value and practical value of each index by taking the actual situation of HengShui-DaMing section in DaQing-GuangZhou expressway into consideration, then carries out non-dimensional treatment to the index and builds a comprehensive index model by employing the multi-factor evaluation method on the basis of entropy-weighted technique. The result of the evaluation shows that the land use of HengShui-DaMing section in DaQing-GuangZhou expressway meets the standard of land economical use.