摘要：AbstractThe density of highway network is an important evaluating indicator in highway network planning. Due to the lack of depth researches and discussions, some negative factors affect the density of highway network, e.g. huge occupation of land and fund consumption in highway network construction. In this background, this dissertation proposes improved methods to study the optimal density of highway network from the perspective of land output based on existing researches. Through analyzing the relationship between highway network density and land output, this dissertation establishes a model on the optimal density of highway network based on land output.
关键词：highway network planning;highway network density;land output;optimal density;diminishing marginal benefit law
