Study on the Technical Speeds of Metro Trains for Traction Energy Saving and Transport Efficiency Improvement

By a computer-aided simulation method, this study analyzes the energy cost and transport time per passengerkilometer of the transports by two representative types of metro trains with various technical speeds on certain metro lines in China for different boarding rates. It shows that if the boarding rate of a metro is higher than 60%, its energy cost and transport time per passenger-kilometer have comparatively small changes with the increase of its technical speed.