Hengyang

Hengyang is not important because it is famous; it is important because so many routes have to pass through it. The city sits 66 metres above sea level on the Xiang River and its built-up population reached 1,290,715 in the 2020 census, above the older GeoNames figure of 1,075,516. Officially Hengyang is introduced through its history, its role as Hunan's second-largest city, and its connection to Nanyue Hengshan.

The bigger story is that Hengyang keeps converting transport centrality into industrial bargaining power. City materials say Hengyang has nine railway lines, about 610 kilometres of operating rail, and status as a national dry-port logistics hub city. That infrastructure is why projects like BYD's intelligent manufacturing industrial park were steered there: the 2025 investment note projected annual output of ¥10 billion in the first year, rising to ¥50 billion within six years. Hengyang is therefore less a consumer city than a switching yard where logistics capacity gets monetized twice, first through freight movement and then through factories that want to sit beside the freight.

Path dependence comes first. The Beijing-Guangzhou and Hunan-Guangxi corridors made Hengyang a hinge long before new-energy manufacturing arrived. Preferential attachment follows. Once a city is known as the place where rail, highway, river, and airport capacity already overlap, the next manufacturer prefers that city because the routing risk is lower. Positive feedback loops make the pattern cumulative: each new plant justifies more logistics investment, which in turn makes the next plant easier to recruit.

The biological analogy is the spider. A spider does not need to chase every insect; it builds a web where traffic already concentrates and lets the structure do part of the work. Hengyang functions the same way. Its real asset is not one industry but the web that keeps drawing industries in.