Abstract： Moving axle loads, excitation force function and deterministic formulas for vibration acceleration of track were employed to calculate the metro train load timehistory in Shanghai. Considering the interface characteristics between the segments and the surrounding soils as well as other segments and the effect of longitudinal joint bolts, a threedimensional dynamic finite element model of track bedsegmentsoil system was constructed to compare the dynamic responses on shield tunnel structures. The results show that dynamic stresses timehistory curves of track bed and soil elements are basically the same for the three methods. Due to the differences of acceleration frequency spectrum caused by moving axle loads and excitation force function methods, the evaluation of metroinduced environmental vibrations should be based on the measured data of metro train loading.