Retail store customer flow and COVID-19 transmission.

ABSTRACT: We examine how operational changes in customer flows in retail stores affect the rate of COVID-19 transmission. We combine a model of customer movement with two models of disease transmission: direct exposure when two customers are in close proximity and wake exposure when one customer is in the airflow behind another customer. We find that the effectiveness of some operational interventions is sensitive to the primary mode of transmission. Restricting customer flow to one-way movement is highly effective if direct exposure is the dominant mode of transmission. In particular, the rate of direct transmission under full compliance with one-way movement is less than one-third the rate under two-way movement. Directing customers to follow one-way flow, however, is not effective if wake exposur

SUBMITTER: Shumsky RA 

PROVIDER: S-EPMC7980443 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature