Economic-Geographical Method Delimiting Wagon Flows in the Region Considered: Model and Algorithm

Chislov, Oleg; Bogachev, Viktor; Zadorozhniy, Vyacheslav; Bogachev, Taras

doi:10.20858/tp.2018.13.2.4

Cited by 22 publications

(5 citation statements)

References 5 publications

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“…Lack of knowledge about the dependence of the capacity factor on the parameters of the transport process, traffic conditions and passenger flows does not allow effective planning of the transport process, often leading to irrational decisions to adjust routes, schedules, etc. As a result of irrational planning, the proper quality of transport service is not always ensured, especially during periods of peak passenger traffic [3].…”

Section: Introductionmentioning

confidence: 99%

Retracted Article: Calculation of maximum allowable capacity coefficient for urban passenger transport

Scherbakov

Пушкарев²,

Kuzmin³

et al. 2023

E3S Web Conf.

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One of the most important indicators of the quality of transport services to the population is the coefficient of the use of rolling stock capacity. This parameter directly affects economic efficiency of the transport organization: the carrier is concerned with the highest value of the capacity utilization coefficient. The passenger, on the contrary, prefers service without overcrowding of the rolling stock. In practice, the average coefficient of dynamic capacity utilization for the relevant period is calculated, which is used in determining passenger fares, the analysis of the performed traffic in terms of available reserves of carrying capacity, planning of the transportation process. The paper considers the methodology of calculating the maximum permissible value of the coefficient of capacity utilization, on the basis of ensuring the normal occupancy of the cabin throughout the routes during the entire period of transport movement. The solution to determine the maximum permissible occupancy of rolling stock at work on regular city routes is offered, the task on the basis of analysis of dependence of the factor of use of capacity from parameters of passenger flows, average time of work of rolling stock on the route and non-uniformity of speed of communication during the work of passenger transport is offered. It was proposed to estimate the fluctuations of the communication speed during the movement of urban passenger transport by means of the coefficient of non-uniformity of the communication speed. It is established that the coefficient of using the rolling stock capacity depends substantially on the parameters of passenger flows, the average operating time of the rolling stock on the route and the unevenness of the speed of communication during the period of transport operation.The obtained dependencies make it possible to calculate the maximum permissible value of the capacity factor, taking into account the parameters of the planned transport process. Depending on the operating conditions, the capacity utilization factor varies within a significant range from 0.2 to 0.4.

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Section: Introductionmentioning

confidence: 99%

Retracted Article: Calculation of maximum allowable capacity coefficient for urban passenger transport

Scherbakov

Пушкарев²,

Kuzmin³

et al. 2023

E3S Web Conf.

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“…Changes in road legislation and trucking regulations have led to the need to take into account the maximum axle loads that can occur during transport. This is particularly relevant for the transport of bulk goods because when trucks (combinations of vehicles) brake or accelerate, move down a slope or drive around corners, part of the load may shift relative to the vehicle axles [1,2,3]. This, in turn, can alter the axle loads of the truck.…”

Section: Introductionmentioning

confidence: 99%

Retracted Article: Effects of bulk cargo displacements on changes in truck axle loads

Scherbakov

Пушкарев²,

Kuzmin³

et al. 2023

E3S Web of Conf.

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Changes in road legislation and trucking regulations have led to the need to take into account the maximum axle loads that arise during road transport. In particular, this task is relevant when transporting bulk cargo because when braking or accelerating trucks (road trains), when driving on a longitudinal gradient, or when driving on curves, there can be a displacement of part of the cargo relative to the axles of the vehicle. In article results of experimental research of displacements of loose cargo (gravel, crushed stone) at transportations and their influence on change of axle loadings of cargo vehicles are resulted. During the research the level of loose cargo in semitrailer truck-trailer before and after the experiment was measured, axle load weighing and full train weight weighing was made, in addition video recording of loose cargo displacement was made. Conducting the analysis of experimental data of axial weighing we found out that during transportation of loose cargo its redistribution inside semi-trailer takes place, and it in its turn leads to change of axle loads of road-train. The axle load variations were outside the measurement error range of 1.4 to 4.9%. A further proof of the shifting of the bulk load in the semi-trailer was the video recording of the load in transit. The analysis of the videos showed that both crushed stone and gravel shifted in the semitrailer when the vehicle was moving at high speed. As a result of this work, an experimental confirmation of the fact that the bulk cargo is shifted relative to the sides of the semi-trailer during braking and this shift leads to changes in the axle loads of trucks was obtained.

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“…The geometrical idea of the approach used by the authors goes back to [12]. It received a significant development analytically in [9] and [10]. As a result, a geometrical Euclidean model (GEM) of the freight transportation market was proposed.…”

Section: Geometrical Bases Of the Methods And Gem Of Freight Trafficmentioning

confidence: 99%

“…In this paper, the approach developed by the authors in transport and logistics research [9,10] is applied to the issues of optimizing the management of freight railway traffic flows to ports located on the southeast coast of the Baltic Sea. JSC Freight One as part of its interaction with the NLMK group of companies is considered as the object of research.…”

Section: Preliminary Analysis Of Cost Indicators Of Freight Transportation In the Regionmentioning

confidence: 99%

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Modeling of the Rail Freight Traffic by the Method of Economic-Geographical Delimitation in the Region of the South-Easter Coast of the Baltic Sea

Chislov¹,

Bogachev²,

Zadorozhniy³

et al. 2019

Transport Problems

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The results of further research on the creation of a mathematical model of railway freight traffic carried out in a regional transport and technological system are presented. The proposed logistic approach is applied to the issues of optimizing the management of transportation directed to ports located on the southeast coast of the Baltic Sea. Built on the basis of a comprehensive assessment of the transport infrastructure of the region under consideration and the performance of the operating company, the mathematical model provides ample opportunities to address issues of regulating of transportation. The method of economic and geographical delimitation of the «influence areas» of loading stations is significantly developed both in terms of using the geometric properties of higher order algebraic curves and in terms of a deeper approach to studying the transportation process. The results of the research can serve as one of the basis for improving the economic efficiency of the functioning of international transport corridors in the framework of multimodal transport.

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Economic-Geographical Method Delimiting Wagon Flows in the Region Considered: Model and Algorithm

Cited by 22 publications

References 5 publications

Retracted Article: Calculation of maximum allowable capacity coefficient for urban passenger transport

Retracted Article: Calculation of maximum allowable capacity coefficient for urban passenger transport

Retracted Article: Effects of bulk cargo displacements on changes in truck axle loads

Modeling of the Rail Freight Traffic by the Method of Economic-Geographical Delimitation in the Region of the South-Easter Coast of the Baltic Sea

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