“…However, the above accessibility research methods are mostly based on the time-cost model to consider the layout of a certain urban node, and pay relatively little attention to the strength of transportation links between different nodes (especially between cross-border regions).Currently, the literature on the Belt and Road initiative has focused on transport infrastructure along the Belt and Road and few studies have focused on transport accessibility and optimal construction of transport corridors. These studies have focused on the economic spillover effect [27,28], cross-border investment (FDI) growth [29,30], and the strategic value of infrastructure construction [31,32], and the relatively economically developed city clusters along the Maritime Silk Road [33,34]. Less research has focused on the relatively backward land transport along the Silk Road Economic Belt, with particular focus on the Northwest Corridor Belt [35] and the entire Silk Road Economic Belt [36] as the starting point for discussion.…”