It is learned from the joint meeting of "one road five directions" quarterly coordination and promotion of the internal luzhou section of the south sichuan inter-city railway held on May 13 that by the end of April, the annual investment of the internal luzhou section of the south sichuan inter-city railway has completed RMB 820 million.At present, all 8 tunnels along the self-filter line of the south sichuan inter-city railway have been completed, and all the tunnels have entered the stage of box girder erection.