Flexible Optimization of International Shipping Routes considering Carbon Emission Cost

Table 2

The distance among individual ports (n miles).

Dis(i,j)	Shanghai	Ningbo	Yantian	Singapore	Dubai	Antwerp	Rotterdam	Hamburg
Shanghai	0	109	796	2148	5606	10431	10449	10740
Ningbo	109	0	739	2090	5549	10373	10392	10640
Yantian	796	739	0	1454	4911	9736	9754	10002
Singapore	2148	2090	1454	0	3454	8279	8297	8545
Dubai	5606	5549	4911	3454	0	6189	6207	6455
Antwerp	10431	10373	9736	8279	6189	0	200	710
Rotterdam	10449	10392	9754	8297	6207	200	0	480
Hamburg	10740	10640	10002	8545	6455	710	480	0