Group 1 - The extreme cold and snow weather has significantly impacted transportation systems in Jiangsu, with measures taken to ensure smooth operation and safety for the public [1][2] - At Lianyungang Station, 100 trains were delayed by over 15 minutes, and 10 trains were canceled due to the weather, particularly affecting services to the west and north [1] - Nanjing Lukou International Airport had to cancel 13 flights due to the weather, with a total of 576 planned flights for the day [1] Group 2 - The low temperatures and snow have also affected waterway navigation, leading to temporary traffic control measures on the Yangtze River, including the suspension of three passenger ferry routes [2] - As of 5 PM, Jiangsu's highways implemented secondary traffic control due to slippery road conditions, with over 36,700 personnel deployed and 28,600 tons of de-icing materials used [2] - A total of 1,459 passenger transport lines and 937 bus routes were suspended across the province due to the adverse weather conditions [2]