id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-32279	Zhang, Bo; He, Ling; Yang, Chen	Research on the Classification of Air-Rail Integrated Hubs in Northwest China Based on Complex Network Theory	2025	7	.pdf	application/pdf	4763	188	37	In contrast, domestic research has primarily concentrated on economically developed regions, with systematic studies on the hierarchical classification of multimodal transport network hubs in Western China remaining relatively scarce. Incorporating indicators such as cargo and mail throughput and high-speed rail connection strength, the study applies systematic clustering to classify hub cities into hierarchical levels.	cache/ajst-32279.pdf	txt/ajst-32279.txt