Empiristic analysis, through interviewing probe and questionnaire survey and multiple statistical analysis method, amends employee turnover forecast model of dynamic.
Based on the actual condition of air-conditioned train, this paper designes questionnaires about IAQ intrain compartment and investigates the IAQ by the questionnaires.
Methods Survey 608 residents, who are above 35-year-old in Songbo town of Shen Nongjia area, with unific survey papers;and give them physical examination.