The spatial transport linkage is defined as the linkage and action between passenger flow and goods flow through transportation system and acte i on social, natural and economical factors.

• 空间运输联系可以定义为：在自然、社会、经济诸要素综合作用下，区域间通过交通运输系统进行的旅客和货物交流而产生的相互联系与作用。