A MODEL FOR DETERMINING THE EFFICIENCY OF A TRANSPORT SYSTEM BASED ON THE RISK OF FUNCTIONAL STABILITY

Abstract

The objective of this study is to enhance the efficiency of transport systems by refining their evaluation model through a risk-oriented approach. To achieve this objective, the following tasks were addressed: identifying the primary factors influencing the functional stability of vehicles within transport systems, and substantiating a model for evaluating the operational efficiency of transport systems based on vehicle functional stability and a risk-oriented approach. Functional stability is a complex, multifactorial characteristic that defines the ability of rolling stock to perform its transport function reliably, safely, and efficiently under real-world operating conditions. This level is determined by the interplay between a vehicle's inherent technical properties and a wide range of external factors related to the transport system, infrastructure, environment, logistics, and management. This approach allows functional stability to be viewed not as a passive property of a vehicle, but as a manageable foundation for the operational efficiency of transport systems. The proposed model for evaluating transport system efficiency demonstrates that: the efficiency of its operation is proportional to the functional stability of its constituent vehicles, which, in turn, declines exponentially; the rate of this decline is determined by the risk of external factors impacting the vehicle: the higher the risk, the more rapidly functional stability diminishes; and the model accounts for the cumulative effect of external factors over time.