Evaluation of Coupling Coordinated Development Degree of Multiple Airport Composite System in the Yangtze River Delta

Most airports serious loss and stressed waste of facility resources and other issues lead to the controversy of whether the Yangtze River Delta airport construction density is too high. Based on this background, this paper analyzes the mechanism of system coordinated development, after constructing the degree of coupling, coordination degree and integrated development index model, composite system coupling coordinated development degree evaluation model is investigated with the Yangtze River Delta multi-airport and economic system as case study. The results show that a high degree of coordinated development of airports accounted for 75%, coupled with airports there is a strong correlation between coordinated development degree and airport scale. The airport with higher size has better coordination with economic development.Large-scale integrated hub airports is generally higher than the small airports. The level of economic development is an important factor affecting the degree of coupling coordinated development, the better the level of regional economic development, the airport and the economy more coordinated development degree coupling high. The region of better economic development level has higher coupling coordinated development degree between airport and economy.