The transportation system stands as a pivotal factor in a nation's development. It is imperative to underscore that transportation activities form the bedrock of infrastructure, fostering economic growth within a country. Rail transportation, as an age-old method for conveying passengers and goods, remains widely embraced. Its popularity is rooted in various factors, encompassing the abatement of air pollution, contributions to sustainable development, cost-effectiveness, and heightened security measures, among others. This research endeavors to scrutinize the environmental influences contributing to the upsurge in passenger numbers within the rail transportation system. The study encompasses a thorough investigation of diverse factors influencing the increment in passenger numbers. Key variables integral to this research comprise the quantity of passenger cars in active service and storage, the consumption of various types of oil, the aggregate count of passenger cars, and the average journey distance. Upon analyzing the findings, it is evident that the variable denoting the number of passenger cars in service and reserve exerts a noteworthy impact on the escalation of passenger numbers over recent years. Consequently, a strategic focus on these variables during long-term planning and policymaking holds the potential to augment passenger figures in the rail transportation system.