In response to ambiguities and inconsistencies in China's evaluation standards for train-induced environmental vibrations in urban rail transit, which affect assessment conclusions, this paper adopts a combination of field measurements and statistical analysis to conduct a comparative study of current standards regarding evaluation indicators, weighting curves, analysis frequency ranges, and determination of train pass-by intervals. The main conclusions are as follows: it is recommended to establish both a time-frequency comprehensive evaluation indicator and a frequency-domain evaluation indicator. It is suggested to set the single-value evaluation indicator as the maximum vertical vibration level (VLz_max), the frequency-domain octave evaluation indicator as the maximum vibration level of 1/3 octave bands (VAL_max), and adopt the peak value retention method in the calculation. The W_k weighting curve is suggested to be adopted and the analysis frequency range is recommended as 1~80 Hz. To effectively eliminate the influence of subjective factors in determining train passing periods on evaluation results, it is recommended to use time weighting for vibration signal analysis and the peak hold method for calculating VLz_max and VAL_max.

urban rail transit  /  environmental vibration  /  evaluation standard  /  weighting curve  /  vibration level