Applying a deterrence nudge strategy for promoting stair usage in a university setting

Abstract Purpose This study aimed to examine whether indirectly deterring elevator use through time-targeted Point-of-Decision Prompts (PODPs) efficiently increased stair usage in a university setting. Methods A quasi-experimental design was employed over 2 weeks in September 2023. Baseline observations were conducted for 1 week prior to signage placement at two locations. The intervention in this study lasted for 1 week, immediately following baseline observations. Logistic regression analysis was used to examine the increase in the act of ascending the stairs. Results Our intervention, which focused on time-related messages, effectively increased stair usage among university students. Furthermore, women and individuals aged ≥ 30 years were notably more likely to be influenced by our intervention than men and individuals aged < 30 years. Conclusion Indirectly discouraging elevator use through time-targeted PODPs may amplify the effects of the previously employed time-related messages. Our findings suggested that a deterrence nudge should primarily be directed towards promoting stair usage among women or individuals aged ≥ 30 years.