Table 1. Coordinates and codes of demand identification points.

Path 1 ${\omega }_1^d$				Path 2 ${\omega }_2^d$
No.	Name	Coordinates	Demand coding	No.	Name	Coordinates	Demand coding
1	Guangyuan Panlong Airport	105.89	$P_s^1(x,y,z)$	1	Nanchong Yingshan Airport	106.11	$P_s^2(x,y,z)$
		32.64				30.781
2	Jiange Airport	105.52	$P_1^1(x,y,z)$	2	Suining Airport	105.45	$P_1^2(x,y,z)$
		32.28				30.35
3	Jiangyou Airport	104.72	$P_2^1(x,y,z)$	3	Lezhi Airport	105.02	$P_2^2(x,y,z)$
		31.75				30.2
4	Mianyang Nanjiao Airport	104.56	$P_3^1(x,y,z)$	4	Ziyang Airport	104.6	$P_3^2(x,y,z)$
		31.53				30.11
5	Dujiangyan Airport	103.64	$P_4^1(x,y,z)$	5	Renshou Airport	104.13	$P_4^2(x,y,z)$
		30.98				29.99
6	Qionglai Airport	103.46	$P_5^1(x,y,z)$	6	Pujiang Airport	103.50	$P_5^2(x,y,z)$
		30.41				30.19
7	Ya’an Airport	103.10	$P_6^1(x,y,z)$	7	Baoxing Airport	102.81	$P_6^2(x,y,z)$
		30.06				30.36
8	Hanyuan Airport	102.65	$P_7^1(x,y,z)$	8	Xiaojin Airport	102.36	$P_7^2(x,y,z)$
		29.34				30.99
9	Mianning Airport	102.17	$P_8^1(x,y,z)$	9	Jinchuan Airport	102.06	$P_8^2(x,y,z)$
		28.55				31.47
10	Xichang Qingshan Airport	102.26	$P_9^1(x,y,z)$	10	Malcolm Airport	102.20	$P_9^2(x,y,z)$
		27.89				31.90
11	Dechang Airport	102.17	$P_{10}^1(x,y,z)$	11	Luhuo Airport	100.67	$P_{10}^2(x,y,z)$
		27.40				31.39
12	Miyi Airport	102.11	$P_e^1(x,y,z)$	12	Ganzi Gesser Airport	101.96	$P_e^2(x,y,z)$
		26.890				30.04