Author(s): LEE, C.G., Institution: SEOUL NATIONAL UNIVERSITY, Country: KOREA, SOUTH, Abstract-ID: 565

Purpose: The aim of this study was to examine whether indirectly deterring elevator use through time targetted Point-of-Decision Prompts (PODPs) efficiently increases stair usage in a university setting.
Methods: A quasi-experimental design was employed over a period of two weeks during September 2023. Baseline observations were conducted for one week prior to the placement of signage at two locations. The intervention in this study lasted for one week immediately following the baseline observations. Logistic regression was employed to examine the increase in ascending stair use.
Results: Our intervention focusing on time-related messages effectively increased stair usage among individuals in a university setting. Furthermore, women and individuals aged 30 years or older were notably more likely to be influenced by our intervention compared to men and individuals aged less than 30 years, respectively.
Conclusion: Indirectly discouraging elevator use through time-targetted PODPs may amplify the impact of previously employed time-related messages. Our findings also suggest that a deterrence nudge should primarily be directed towards promoting stair use among women or individuals aged 30 years or more.