Abstract:
Objective To establish a sound scientific, quantitative, practical, and comprehensive evaluation protocol with multiple indicators for hygienic evaluation of underground subway station projects by applying fuzzy comprehensive evaluation method.
Methods With reference to national standards, related literatures, and domestic existing indicator systems, subway hygienic surveys and expert consultations were conducted to construct an indicator system and a set of fuzzy criteria for subway hygienic evaluation. The weights of indicators at each level were determined by the expert consultations. The protocol was then applied to the hygienic evaluation of 10 underground stations of a north-section phase-I metro line project in Shanghai.
Results The hygienic evaluation system, indicator weights, and evaluation criteria for subway station were initially established. The system reflected the hygienic status of subway environment from various angles. Of the 10 underground stations selected, 6 were grade II (Unpolluted), and 4 were grade I (Clean); the general grade of the metro line was grade II (Unpolluted).
Conclusion The fuzzy comprehensive evaluation method could be applied to the hygienic evaluation of subway projects, and is capable to rate hygiene level and render a definite conclusion to a given project.
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