The arrival and departure of subway trains induce ambient vibrations in the adjoining underground spaces

whose negative influence should not be ignored.Using the annoyance rate model

the human comfort under the ambient vibration can be quantitatively evaluated.In this paper

a large underground space adjoining subway station is taken for example

using the Imote2 wireless sensor network platform

to measure the Z-axis vibration acceleration of the floor slab of this underground space during the arrival-and-departure period.The time-history and frequency domain responses are acquired

and their characteristics are also analyzed.Based on the weighted acceleration spectrum

the maximal annoyance rate values

for different region conditions

are calculated.The design and use conditions of the testing zone are accordingly assessed.The results show that the greater vibration responses occur in the adjoining underground space

when the subway train is deceleratingto arrive at the station.In addition

the testing zone should avert to be designed as the first class zone

which requires a higher human comfort

but it can be designed as second to the fourth class zones.The vibration amplifier region

namely the rebound region of annoyance rate occurs during the propagation of the elastic waves within the floor slab of the underground space.Therefore

in the practical use

the rebound region should be averted so as to lower its negative influence on human comfort and health.