Effect Mechanism of Multi-scenarios Terminal Capacity Based on Flow Decomposition Barrier

In order to investigate the influence factors and variation trends of terminal capacity, a capacity network model for terminal area was built using the flow decomposition barrier theory according to the terminal area characteristics, in which the length of routes, flight speed, control separation, and other factors were considered. Taking Hangzhou terminal area as an example, multi-scenarios were built about location of bad weather, dual-runway operation pattern, etc., and the effect mechanism and relationship of different influence factors on the terminal capacity was investigated. The results indicate that terminal capacity has a uneven step-like decline due to bad weather, and the descent gradient is closely related to the route substitutability. When the bad weather affect the single route of AND direction, the capacity decreases 10-20 vehicles per hour; the dual-runway capacity differs significantly with different operating patterns, and the capacity ranges from 33 to 108 vehicles per hour.