Why is there no direct high-speed rail from Nantong to Suizhou?

I think the reasons why there is no direct high-speed rail from Nantong to Nantong to Suizhou are mainly as follows:

First, Nantong is an eastern coastal city in China, and the travel demand is mainly southward to Shanghai. , Suzhou and other places, leading to Yangzhou, Nanjing and other places in the west, and leading to Yancheng, Xuzhou and other places in the north. The demand in the south is the strongest. However, there is a natural chasm of the Yangtze River between Nantong, Shanghai and Suzhou, which is difficult to cross. Bridge-building technology was not developed enough in the past.

There is no direct train from Nantong to Suizhou South. You can transfer at the following stations

Nantong Station-Transfer Station Mileage 284-Suizhou South Station Mileage.