In this paper effect of various factors on the Shinkansen super express noise and vibration level(peak levels), that were measured by Nagoya municipal authority in 1976 and 1981, has been studied using multivariate analysis (the quantification theory type I). The results show distance from track, train speed and railroad structure are most affective. Dependences of noise and vibration levels on train speed and distance from track are derived and discussed. Then the results of the analysis are usefully applied to predict the levels especially for noise. Some remarks are also made on difference between the results obtained from the data of 1976 and 1981
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