references and VOSviewer data for the review paper \The Determinants of Two-wheeled Vehicle Riders\u2019 Riding Behavior\

uman error, particularly risky riding behaviour, dominates the causes of 30% of the globalfatalities involving two-wheeled vehicles such as bicycles, motorcycles, e-bikes and e-scooters. Previousreview studies failed to develop an extension of the theory of Planned behaviour to investigate two-wheelerriders\u2019 risk-taking behaviour on the road and overlook the environment, such road conditions, and vehicle\u0002relevant factors that lead to risk behaviours. The current studies focus on cyclists, motorcyclists and e-bikeand e-scooter riders to explore the underlying mechanisms of riding behaviours. This review used ridingbehaviour keywords to filter existing studies in the Web of Science to provide better insights into the complexdynamics of two-wheeled vehicle rider behaviour. Riding simulator, observation, naturalistic riding,interview, and questionnaire methods can be recombined in the study on two-wheeler riders\u2019 riding behaviour.Moral norm is a significant predictor of intention. Younger and lower-income two-wheeler riders were moreinclined to engage in risky riding behaviours, while marital status, experience, and education factors havevarying influences under cultural content differences. This paper develops additional factors such asenvironment, vehicle usage, and vehicle control beliefs from selected papers\u2019 findings, and incorporates otherfactors and these novel variables into the TPB. The research agenda is demonstrated to conduct the conceptualE-TPB model. The environment-vehicle-human E-TPB model highlights the psychological and non\u0002psychological factors influencing rider behaviours. This paper bridges the gaps between under-exploredfactors for data collection and data processing methods. This study provides a unique perspective forimproving road safety and a theoretical contribution