Investigation on indoor thermal environment of underground railway trains

Taking the indoor thermal environment of underground railway trains in typical lines in Shenyang, Beijing, Shanghai and Guangzhou as study objects, performs the field test of thermal environment parameters and the subjective questionnaire in the trains in winter and summer. Obtains the current situation of thermal environment and passenger’s thermal sensation in underground railway trains in different cities by statistical analysis. Gives the thermal neutral temperature and the acceptable temperature range under 80% acceptance rate in the trains, which can provide foundations for the design and improvement of thermal environment in underground railway trains.