In winter, the heating temperature in vehicles is generally set to a specific temperature and is not adapted dynamically to changing weather conditions. Since passengers are usually dressed according to the outside temperature, excessive heating in the vehicles can be a source of discomfort, especially at peak time.
The goal of temperature regulation is to reduce the temperature in the vehicles and decrease energy consumption. This action applies to rolling stock with a heating system that has a heating control to vary the temperature. It requires a feasibility study to identify the constraints from the operator viewpoint (settings, maintenance) and the passengers’ viewpoint (comfort). The right temperature must be set according to thermal comfort rules and equipment possibilities. This measure is a great opportunity to examine all equipment and to replace any defective temperature sensors at the same time.