DETERMINATION OF OPTIMAL ROUTE DRIVING SPEED WHEN USING VEHICLES IN PASSENGER TRANSPORTATION
DOI:
https://doi.org/10.35546/kntu2078-4481.2026.1.5Keywords:
route speed; standard trip time; schedule reliability; quantile; time reserve; passenger transportation; busAbstract
Determination of the optimal route speed of travel when operating motor vehicles in passenger transportation. K. Dolya. The article considers the problem of substantiating the optimal route speed of travel for bus passenger transportation under conditions of variability of the traffic situation and stochastic nature of delays at races, intersections and stops. The relevance of the topic is due to the fact that overestimating the standard speed increases the risk of schedule disruption and increased operational losses, while underestimating it leads to an increase in turnaround time, the need for additional fleet and deterioration of transport accessibility. The purpose of the study is to develop an approach to establishing the standard trip time and the corresponding route speed, which provide a given level of reliability of schedule execution and are consistent with the resource and economic constraints of the carrier. It is proposed to determine the optimal speed through the quantile of the actual trip time * ( * ). m T v = L Q p To increase the controllability of the speed parameter, the decomposition of the trip time into components of movement between stops, parking lots and delays was used, which allows linking the standards with specific causes of time loss and forming directions for organizational and technological measures (priority of movement, optimization of boarding/payment, adjustment of the stop network). The methodology describes the coordination of the standard trip time with the movement interval, cycle time and the need for rolling stock, which makes it possible to assess the consequences of choosing p* for resources and operating costs. A theoretical experiment was performed for the Mercedes-Benz Tourismo bus, which demonstrates the step-by-step calculation of the standard time, buffer time and optimal route speed for a given level of reliability. The results obtained can be used in planning schedules, time reserves and assessing the trade-off between service quality (punctuality, regularity) and economic performance of the route.
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