It is learned from Nanning Rail Transit Operation Co., Ltd. that Nanning Metro Line 4 will classify the carriages according to temperature and improve passenger comfort through segmented services.

According to reports, starting from June 1st, during the cooling period of the metro lines, trains of Line 4 will be divided into "strong cooling" and "weak cooling" carriages, as well as "moderate cooling" carriages. Among them, the temperature of the strong cooling carriage is maintained between 25-26 ℃, suitable for young people with a stronger physique; the temperature of the weak cooling carriage is between 27-28 ℃, which is more suitable for elderly people or children who try to avoid sudden change of cold and heat; the temperature of the moderate carriage is 26-27 ℃, which is suitable for most passengers. In the future, the rail system will make more reasonable adjustments to the temperature settings of the carriages based on passenger suggestions and feedback, continuously optimize and evaluate the service so that it can develop to more other lines.