just got really luck I guess. The above image looks like a pretty good explanation.Why in Shijiazhuang? Literally in middle of nowhere. Why not just focus on expanding rail and logistics infrastructure in BJ/TJ area or Taiyuan directly (as the only areas SJZ seems to connect are the Bohai metro with Taiyuan - basically SJZs sole reason for existence).
Although if you look at BRI projects, Xian and Zhengzhou seem to be large hubs
anyways, Cambodia is getting a canal from China to Gulf of Thailand
great peace here. Now that China has basically completely transformed infrastructure around Laos, time to extend that to Cambodia