The research goal is the development and investigation of the recommendations and practically applicable methods for an evaluation of the public transport passengers' thermal comfort and for an automatic application of this evaluation in adjusting the parameters of the passenger compartment's environment. In the research, for improving thermal comfort of the public electric transport's passengers, the methodology determining passenger's satisfaction with thermal comfort using the fuzzy logic controller, and the method of an automatic adjustment of thermal parameters' setpoint, carried out in passenger compartments and based on an evaluation of passenger satisfaction, are designed.