A technician from the Datong signaling section of China Railway Taiyuan Group conducts high-temperature adaptability adjustments on signaling equipment, eliminating hazards from extreme heat in Shanxi province. The maintenance work supports safe operations during the 2026 summer travel rush, which national railway operator China State Railway Group projects will handle 1.01 billion passenger trips nationwide, while Taiyuan Group alone expects 18.91 million trips, up 5.8 percent year-on-year.