Abstract: In order to assess comprehensive risk of resuming classes in universities and assist them in making decisions during outbreak of COVID-19 epidemic, a risk assessment method for resuming classes in universities was explored. Firstly, PSR model was introduced to analyze interaction mechanism between each element, and a comprehensive risk assessment index system for class resumption during the epidemic was established. Then, hazard factors and vulnerability of affected body were used to measure comprehensive risk of the epidemic, and an evaluation method for such activities in universities was proposed. Finally, with a university in Xi'an as an example, feasibility and effectiveness of the risk assessment model was verified. The results show that this model can accurately assess comprehensive risk of resuming classes in universities when faced with the virus. Moreover, risk level of school location, personnel control measures, status of school emergency drills and evaluation are main influencing factors of P, S, and R systems respectively, which should be paid attention to.

Key words: corona virus disease 2019 (COVID-19), university resumption, comprehensive risk assessment, pressure-state-response (PSR) model, risk matrix