Halim, Yasser TawfkHalim, Hazem TawfkEl‑Deeb, Mohamed SamyEl Sheikh, Samia Adly2023-01-022023-01-022022-12https://doi.org/10.1186/s43093-022-00175-zhttp://repository.msa.edu.eg/xmlui/handle/123456789/5306The purpose of this research is to build and evaluate a theoretical model capable of forecasting public participation in mega events. This study predicts event tourism participation using a mixed behaviour model based on a trust model and a deliberate actions model. Using data from 261 local and international visitors, structural equation modelling was engaged to examine the study hypotheses. According to the study’s results, observed benefts were positively connected with people’s perspective, but observed obstacles were negatively associated, and observed benefts had a positive infuence on interactive mechanism and observed obstacles had a negative infuence on interac‑ tive mechanism. Additionally, the study’s results suggested that individuals’ intention to participate in mega events was positively infuenced by their observed benefts, perspective, interactive mechanism, and normative beliefs and negatively infuenced by observed obstacles. Finally, we perceived that observed risk signifcantly moderated the associations between observed benefts, observed obstacles and perspective, observed benefts, observed obstacles and interactive, lastly, observed benefts, observed obstacles, perspective, interactive mechanism, normative beliefs and intention to participate in events. The research’s outcomes have signifcant hypothetical and applied efects for mega-events travel.en-USMega eventsIntention,Tourists’ trust model (TM),Deliberate actions model (DA),Observed benefts,Perspective,Observed obstacles,Interactive mechanism,Normative beliefs,Observed riskArticle