Unfortunately, China seems to be following Britain's example of rushing headlong into Modernisation (albeit 50 years later); steam has only finished on the China Rail system within the past few years, and I suspect that, in their rush to now be seen as a technologically advanced country, not enough time has been spent sorting out potential flaws in the system before running superfast trains. A reliable signalling system should be proved to be working perfectly BEFORE the public is permitted to travel on what largely appears to be a Beta version of a high speed railway. Safety must be the number one priority.
More haste, less speed?