Methodology for determining parameters of design vehicle, taking into account conditions of Arctic zone of the Russian Federation

Shevtsova, Anastasia; Novikov, Aleksandr; Loktionova, Alina · 2023 · Crossref

DOI: 10.5937/jaes0-39696

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Summary

This paper addresses the need to update the geometric parameters of the "design vehicle" used in Russian roadway construction and traffic management calculations. Current regulatory standards rely on data from Soviet-era vehicles (1980s), which no longer reflect the modern automotive fleet. The authors argue that vehicle modifications and regional differences in vehicle composition necessitate a calibrated design vehicle specific to the Arctic Zone of the Russian Federation (AZ RF) to ensure accurate infrastructure design and traffic flow analysis. The methodology involves a statistical analysis of vehicle sales data from 2017 to 2021 to identify the most popular light vehicle models in both the AZ RF and the rest of the Russian Federation. The study notes that light vehicles constitute approximately 87% of the total vehicle fleet. The authors identified the top five best-selling models for each region: Lada Granta, UAZ Patriot, Kia Rio, Hyundai Solaris, and Toyota Hilux for the Arctic Zone; and Lada Granta, Kia Rio, Hyundai Creta, Renault Duster, and Volkswagen Polo for the rest of the Federation. The geometric parameters (length, width, wheelbase, overhangs, and turning radius) of these specific models were extracted and compared. The results demonstrate significant differences in vehicle dimensions between the two regions. Vehicles in the Arctic Zone are generally larger, with lengths ranging from 4115 mm to 5260 mm and widths from 1700 mm to 1900 mm, compared to the rest of the Federation, where lengths range from 4268 mm to 4483 mm and widths from 1700 mm to 1804 mm. By calculating the arithmetic mean of these parameters, the authors established a "calibrated vehicle" for the Arctic Zone with a length of 4527 mm, width of 1762 mm, and turning radius of 5.5 m. In contrast, the calibrated vehicle for the rest of the Federation has a length of 4315 mm, width of 1748 mm, and turning radius of 5.4 m. This results in a 6% deviation in geometric characteristics between the two zones. The significance of this study lies in the development of a specific algorithm for determining design vehicle parameters tailored to regional conditions. The authors conclude that using outdated or generalized vehicle parameters leads to inaccuracies in traffic management calculations, such as flow saturation and mandatory control. By adopting a calibrated vehicle model that reflects actual regional vehicle fleets, engineers can improve the precision of roadway design, minimize construction costs, and enhance the efficiency of traffic organization in the Arctic Zone. The paper advocates for periodic updates to these parameters to account for ongoing changes in the automotive market.

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