Probably this tunnel will serve China to make the Uygurland a `more Chinese` land.
https://www.abc.net.au/news/2019-11-10/uyghur-culture-under-threat-in-china-thrives-in-australia/11673636
Turkey to benefit more from BRI as China-Europe freight trains through subsea Bosphorus tunnel
http://www.xinhuanet.com/english/2019-11/08/c_138540179.htm
...It is easy to say difficult to do. Example, you can invite environment groups, you can talk to metro car producers Bombardier, Siemens, Korea and China manufacturers. Coating paint...