Abstract：Research purpose: In order to establish a system about the evaluation of comfort performance，this paper researched many foreigh countries' comfort performance criterion，and especially，a brief outline on UIC Sperling guide line and international standard ISO 2631 ,which is widespread application there into.
Research method: Taken measures on the vibration comfort performance ,which is a special and important one in those factors correlated with comfort performance. The vertical and planar geometry state of the whole line denoted by the versine, and according to the relationship between the vertical and planar design parameter of railway and the train response , gained vertical and planar transition function of the train response，and then，via the calculation of root mean square of weighed acceleration，integrated ISO 2631 standard to carried through the riding comfort evaluation in the dynamics category of narrow sense.
Research result: It is to have a important significance for the Passenger Dedicated Railway Line design，comparison，selection and optimization of scheme.
Research conclusion: Moreover, we can draw a conclusion that it is necessary all the same to combine the simulation of locomotion and dynamic and the analysis method of locale testing and analogy , thus established a foundation for the further research.
2005, Vol. 22 
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