Available online at www.CivileJournal.org Civil Engineering Journal (E-ISSN: 2476-3055; ISSN: 2676-6957) Vol. 9, Special Issue, 2023 236 “Innovative Strategies in Civil Engineering Grand Challenges" The Development of Motorcycle Accident Models Based on Riders’ Characters Margareth Evelyn Bolla 1* , Ludfi Djakfar 2 , Achmad Wicaksono 2 , Cleoputri Al Yusainy 3 1 Department of Civil Engineering, Faculty of Science and Engineering, Nusa Cendana University, Kupang, Indonesia. 2 Department of Civil Engineering, Faculty of Engineering, Brawijaya University, Malang, Indonesia 3 Department of Psychology, Faculty of Social and Political Sciences, Brawijaya University, Malang, Indonesia Received 01 July 2023; Revised 04 December 2023; Accepted 15 December 2023; Published 26 December 2023 Abstract Human errors have commonly been perceived as the dominant cause of accidents. Different individuals may behave differently towards certain situations, leading to accidents. This study aims to model the relationship between the riders’ personalities, riding performance, and the probability of being involved in an accident. Adding mindfulness as a mediating variable and demographic factors as moderating variables are also essential points to developing the model. The Big Five Inventory (BFI) and Mindful Attention Awareness Scale (MAAS) were used to measure the respondents' traits, while the Honda Riding Trainer (HRT) was used as a simulation tool. The Structural Equation Modelling (SEM) analysis shows that only the neuroticism variable significantly predicts mindfulness and riding performance. The openness and conscientiousness variables only significantly predicted mindfulness, while agreeableness is the only Big Five personality that significantly predicted riding performance. The results also show that although the mindfulness (M) variable in this study has not been able to become a mediating variable, it is strong enough as an exogenous variable for riding performance. The logistic regression analysis found that the worse the rider's performance, the greater the chance of an accident. Female riders are more than twice as likely to have an accident as male riders. These results indicate the need to research road safety that is differentiated by sex and its characteristics based on it. Keywords: Big Five Personality; Riding Simulator; Mindfulness; Mediating Variable; Moderating Variable. 1. Introduction A global status report on road safety [1] shows that traffic accidents are still a severe problem worldwide. Even in the COVID-19 pandemic, the reduction in the accident fatality rate was only 8%, not as expected [2]. Worldwide, pedestrians and motorcyclists account for 28 percent of all deaths [3]. The same problem can also be found in Indonesia, which ranks third in Asia for the highest number of deaths due to traffic accidents. In fact, according to the WHO, when viewed from the statistical percentage of the population, Indonesia ranks first with a death rate due to traffic accidents of 0.015% of the total population, and most of the victims are motorcyclists. Based on data from the Central Statistics Agency (BPS) of Indonesia, from 2020 to 2022, after the pandemic, Indonesia experienced an * Corresponding author: margiebolla@staf.undana.ac.id http://dx.doi.org/10.28991/CEJ-SP2023-09-018 © 2023 by the authors. Licensee C.E.J, Tehran, Iran. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).