Li and Cai (2007) display two explicit features already observed in numerous
real-world and artificial networks. Logistic curves and Gaussian curves are used to
predict China’s coal peak; results show that this peak demand will be between the
late 2020s and the early 2030s. A regional survey of shipping companies and
owners employed factor analysis to reveal that port service, hinterland condition,
availability, convenience, logistics cost, regional center and connectivity are the
determining factors in these regions