Subway air quality evaluation based on fuzzy comprehensive evaluation model
Objective To understand the sanitary condition of subway line 1 in a city,and explore the effect of fuzzy comprehensive evaluation model in evaluating subway air quality,so as to provide a basis for the application of this model in subway air quality evaluation.Methods The platform,station hall and carriage of 6 stations of Metro Line 1 in a city were chosen by stratified random sampling method.The fuzzy synthetic evaluation method was used,and the evaluation factors were selected,the weight of evaluation factors and membership degree were calculated,and then an objective evaluation of the overall air quality of a city subway was carried out.Results The comprehensive evaluation results showed that according to the principle of maximum membership degree,the overall air quality of a city subway was at level Ⅰ(good),membership degree was 0.822(equalweight),0.790(superscalar multiple weighting method).Conclusion The fuzzy comprehensive evaluation model is applicable to subway air qualityevaluation,with The goodevaluation results.
NETL
NSTL
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