Research Article

Environmental Impact Analysis of Hub-and-Spoke Network Operation

Figure 4

The flight operation situation of A320 in the hub-and-spoke network. (a) Between Shenyang and Beijing. (b) Between Beijing and Qingdao. (c) Between Beijing and Nanjing. (d) Between Guangzhou and Zhengzhou. (e) Between Qingdao and Guangzhou. (f) Between Guangzhou and Nanjing. (g) Between Shenyang and Guangzhou.
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