A high speed train stops at a station in Paris, Dec. 22, 2019. 90% of high-speed trains and 70% of regional trains were cancelled on Friday, the French railway announced. The French civil aviation authority instructed airlines to reduce their Friday flight traffic from central airports to 20%. (Photo/China News Service)

A high speed train stops at a station in Paris, Dec. 22, 2019. 90% of high-speed trains and 70% of regional trains were cancelled on Friday, the French railway announced. The French civil aviation authority instructed airlines to reduce their Friday flight traffic from central airports to 20%. (Photo/China News Service)

Holiday travelers across France scrambled for alternatives as an 18-day-old transport strike over pension reform saw train services slashed yet again, Dec. 22, 2019. (Photo/China News Service)