Aji Suraji, Ludfi Djakfar, Achmad Wicaksono
Bus transportation performance must be able to demonstrate safety performance capabilities, one of which is the condition of the vehicle. Therefore, to achieve bus vehicles’ safety performance, research must be carried out to determine the causes of accidents. This study aims to determine the causes of accidents related to vehicle conditions. Some of the variables that are observed include brake, wheel, equipment, stability, and worthiness. The data collection method used is to collect secondary data on the incidence of accidents from each Resort Police Office in each district traversed by the intercity public bus route. The roads traversed by the public bus transportation routes between the cities that are the object of the study include Sidoarjo Regency, Pasuruan Regency, Probolinggo Regency, Mojokerto Regency, Madiun Regency, and Ngawi Regency. The analytical method to obtain mathematical modeling is to use Principal Component Analysis (PCA). The results show that five factors analyzed, four main actors, cause intercity bus accidents, namely brakes, wheels, stability, and worthiness. The four factors are interrelated with each other, where these factors support each other and trigger accidents and obtained a mathematical model of the factors causing the accident which can be explained by two mathematical equations, namely PC1 = 0.61X1+0.70X2+0.46X3+0.63X4+0.72X5 and PC2 = –0.47X1–0.17X2+0.76X3–0.26X4+0.31X5. The study results also illustrate that accidents caused by an inappropriate wheel are always followed by a breakdown of the braking system that is not functioning properly, and the wheel system consisting of wheel and brake conditions will be a problem triggering the accident. © The Author(s) 2021.
Department of Civil Engineering, University of Widyagama Malang, 35 Jl. Borobudur, Mojolangu, Kec. Lowokwaru, Jawa East Java, Kota Malang, Indonesia; Department of Civil Engineering, Brawijaya University, 167 Jl. Mayjend Haryono, Malang, 65145, Indonesia
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