>>1759806Thanks for the semi-shit crop teaching me something new. 2 of this 5 didn't even occur on high-speed lines.
>>1760103Fully grade-separated, and segregated from conventional-speed (except Mini-Shinkansen, cf TGV accident causes). Which is a double-edged sword forcing new tracks and station portions to be built along the entire length.
2011 is China being China.
2015 one is significant over-speed at the junction leading to the classic line, during a test without much safeties. Much higher speeds were achieved on the LGV section without issue.
2020 seems to be Italians being stupid with switch and its position signal.