Benefit Analysis for ADS-B Surveillance System Based on China Airspace Capability Model

摘要

To evaluate the operational benefits of ADS-B based surveillance, a China Airspace Capability Model (CACM) is defined to measure the flight separation with safety constraint. The CACM represents airspace constraints by imposing in trail separation on dense routes and output delay metrics enable the user to quantify the impacts of changes. We use Air Traffic Flow Management (ATFM) system to estimate the delay savings associated with ADS-B equipage in two scenarios, one with 15 minutes in trail procedure used in current Air Traffic Center (ATC) and one with 5 minutes in trail which ADS-B supported procedure. The initial data comes from CAAC central and southern region flights of 2010. With ADS-B equipage scenario, we select ADS-B to use for airborne separation assurance application and utilize CACM to calculate minimum airborne safety separation. We simulate the complex interplay of the air traffic system, which provides a timeframe to study the interactions among the different ATM participants as they interact over the course of an entire day. After all data processing, the affected data are recorded and computed based on CACM model. In this way, we quantify the relationship between surveillance system performance and flight delay that reflect on benefit directly. The preliminary result shows that the deployment of ADS-B surveillance would reduce annual operational delay in the China airspace. Simulations show significant reductions in operational delay attributed to the ADS-B. The largest reduction in delay was recorded by the ATFM where 35 percent of the average delay savings were realized.