scholarly journals MATHEMATICAL MODEL OF THE ORGANIZATION OF PASSENGERS’ TRANSPORTATION IN STOPPING-TRANS-RELOCATION POINTS WITH A MULTIPLE CHANGE OF PASSENGER TRAFFIC

2018 ◽  
Vol 15 (3) ◽  
pp. 362-371 ◽  
Author(s):  
M. A. Arslanov ◽  
Sh. M. Minatullaev ◽  
A. A. Filippov

Introduction. The article concentrates on the mathematical modeling features of the organization of passengers’ transportations by motor transport in stop-transfer point (STP) with the multiple change of passenger traffic, which is characteristic for resort municipal formations, and also at the organization of sports, cultural and other mass actions.Materials and methods. Materials are presented and a mathematical model is developed, based on the formalization of the STP functioning, as an infrastructural object intended for realization of the transportation process by various types of passenger transport. In addition, compliance with the conditions of the rolling stock rhythmicity on the STP is considered as the basic operating condition.Results. Consequently, the problem of finding the optimal structure and number of bus transport substation units for the STP functioning parameters and the condition for full and timely development of the repeatedly changing passenger flows in it is solved.Discussion and conclusions. The results of mathematical modeling of passengers’ transportations by motor transport allow estimating parameters of functioning of STP and efficiency of management in the conditions of repeatedly changing passenger flows. Therefore, the involvement of additional carriers, flexible planning of routes and schedules according to the regularity of bus traffic, the rhythm of the buses interaction and other types of passenger transport interaction in the STP during peak periods of loading, which ultimately ensures the efficiency and quality of transport services to the population, are considered as control actions.

2021 ◽  
Vol 12 (2) ◽  
pp. 11-18
Author(s):  
Viktor Bilichenko ◽  
◽  
Serhiy Tsymbal ◽  
Olga Tsymbal ◽  
◽  
...  

An analysis of methods for determining the number and passenger capacity of rolling stock on urban routes of passenger traffic. Coordinated growth of efficiency and quality of urban passenger transport allows to increase the level of satisfaction of passenger transportation needs, reduce transport stress on the urban passenger transport system, improve the environmental situation, reduce road accidents and the number of road accidents, ensure unprofitable work of carriers. Improving the functioning of the production system of urban passenger transport should ensure a minimum travel time of passengers, regular movement of vehicles along the route, rational use of rolling stock and quality passenger service at minimal cost. Managing the number and passenger capacity of rolling stock on the route is an important task that affects both the quality of passenger transport services and the economic efficiency of carriers. These factors are opposite, ie, by improving the quality of passenger transport services, the carrier is usually forced to reduce the efficiency of vehicles. The tasks of local authorities are to ensure the number and passenger capacity of vehicles on the route and the quality of passenger transport services that would ensure maximum efficiency of the urban passenger transport system, taking into account the interests of all parties, ie carriers, passengers and the community. Despite the presence of a significant amount of research, the task of choosing the number and passenger capacity of buses on regular routes in city traffic, which would ensure an improvement in the quality of services, remains urgent.


2021 ◽  
Vol 14 (3) ◽  
pp. 4-11
Author(s):  
Evgeniy Anikeev

Various methods of collecting data on passenger traffic, their advantages and disadvantages are considered. It is shown that in order to improve the quality of transport services, it is necessary to regularly collect and refine data on passenger traffic. The goals and methods of obtaining information about passenger traffic in the system of municipal passenger transport are indicated. All currently existing methods are divided into three categories: data collection using technical means, data collection with the help of censors and volunteers, and interpretation of fare payments. All the methods presented in the article were compared in terms of labor intensity, costs and accuracy of the results obtained. The advantages and disadvantages of each method are considered. The general structure of an automated system for collecting data on passenger traffic is presented. The necessity of creating a centralized system for collecting and processing data associated with all passenger transport control systems has been substantiated. The tasks solved by this system at all levels of transport services for passengers are shown. Each of the tasks is assigned to one of three service levels: pre-transport, transport and post-transport. It is shown that only solving problems at all levels can ensure high-quality operation of the municipal passenger transport system.


2021 ◽  
Vol 1 (48) ◽  
pp. 257-269
Author(s):  
Poliakov V ◽  
◽  
Yaschenko D ◽  
Sharai S ◽  
◽  
...  

In article the question at the choice of the rolling stock of passenger motor transport in the BRT system which provides movements of buses on specially allocated and often obgorodzheny strips, that is its full isolation on the road from other means of transport is considered. For increase in passenger capacity in the BRT system use three-link buses and trolleybuses. Along with indisputable advantages of three-link buses and trolleybuses also shortcomings - the worst maneuverability and stability of the movement in comparison with two-link are inherent in them. Besides, the efficiency of operation of such cars is provided with a passenger traffic which during the day can change many times. Therefore the road train as a part of two (or three) the buses or trolleybuses working in connection, і which passenger capacity similar to the jointed buses and trolleybuses can become perspective. In rush hours the bus train, and in interpeak the period - each bus separately works (the possible parking of one bus at allocated to the platform). In view of restriction of the maximum length of the bus train at the level of 24.26 m, as buses as making road trains, we will accept the 8th meter buses MAZ 206. Passenger capacity of such bus is 72 passenger, the power of the traction engine - 160 kW. The expediency of use of three-link hook-on road train is proved by the conducted researches that MAZ 206 with a total length up to 26 m and with a passenger capacity up to 220 passengers in the BRT system consists of three same buses. It is shown that the total power of engines is necessary for the movement of such bus train with a speed of 25 m/s has to make 300 kW while for one bus at the movement with the same speed it has to be at the level of 135 kW. It demonstrates about economic feasibility of use of the bus train from three buses working in connection because for their movement in all range of speeds there is enough power of two engines, that is one of buses can be used as the passive trailer that will lead to improvement of fuel profitability of the bus train. It is established that on maneuverability indicators three links the hook-on road train considerably exceeds three links pivotally - the jointed bus. So, the dimensional lane of the hook-on bus train at execution of the most typical maneuvers by it during the work on a city route does not exceed 3.9 and 4.1 m at turns respectively on 900 and 1800 that it is much less, than for three links pivotally the jointed bus 24 m long respectively of 6.8 and 8.2 m. KEYWORDS: THREE-UNIT THE ROAD TRAIN, THE BUS, PIVOTALLY-THE JOINTED BUS, THE BRT SYSTEM, POWER, MANEUVERABILITY, A TRAJECTORY, OVERALL STRIP


Pomorstvo ◽  
2018 ◽  
Vol 32 (1) ◽  
pp. 50-58
Author(s):  
Siniša Vilke ◽  
Tomislav Krljan ◽  
Borna Debelić

The survey, which consisted of counting, polling and recording, has provided data on the existing volume of passenger flows in public bus stations/terminals within the Primorsko-goranska (Littoral-Mountainous) County (hereinafter: the PG County), the density rate of passengers on bus lines that operate on County connections and on bus lines connecting the PG County with other counties in Croatia. In addition to the quantitative parameters, the qualitative data were analyzed that had been obtained by polling passengers at the Rijeka bus terminal, whereupon detailed opinions of direct users of the service were elaborated with the aim of obtaining a picture of the current situation of the public bus transport in the PG County. The data collected were used in evaluating the quality of the passenger transport service provided and in determining measures to be taken in order to bring both the actual quality of transport and the satisfaction of passengers to a higher level.


2019 ◽  
Vol 67 ◽  
pp. 03005
Author(s):  
Evgeniy Kolbachev ◽  
Natalya Napkhonenko ◽  
Maryna Karayeva ◽  
Dmytro Maloshtan

Peculiarities of transport services for the transportation of passengers, which must be taken into account when creating logistics models for organizing and managing passenger flows, are considered. Need of cost reduction of time of passengers for transport service is proved. The conclusion is drawn on need of the effective transport system creation, for the purpose of observance of intervals of the movement of buses on routes. The possibility of use of architectural approximations classes for the solution of transport logistics problems is analysed. The methods used for solving transport problems where the most widespread is modeling and algorithmization of the determined task formulation strategy with use of a classical algorithm of mathematical programming are considered. The prospects of a meta-heuristic method use is a genetic algorithm for the solution of tasks of the control of city passenger transport adapted to objective conditions are proved. The main features of genetic algorithms consisting in an opportunity by optimization to use criterion function and to consider the necessary number of restrictions are defined. The structure of a chromosome which represents the coded option of the movement of the bus in real time depending on a road situation is received.


Author(s):  
M. K. Alafiev ◽  

The article discusses the main activities of state authorities, labor collectives of transport enterprises in Western Siberia to improve the operation of urban public transport in the region during the eighth five-year plan (1966-1970). During the study period, the increase in the level of transport services for urban residents was directly related to measures to develop and strengthen the material and technical base of passenger transport enterprises, technical re-equipment of automobile and tram rolling stock, and construction of a new type of public transport in Western Siberia – the urban trolleybus. The author comes to the conclusion that during the eighth five-year plan, urban public transport enterprises in the region received significant material and technical development, which became the basis for increasing the volume of passenger traffic and improving the quality of transport services for the urban population of the West Siberian region


2019 ◽  
Vol 24 (6) ◽  
pp. 343-348
Author(s):  
Mateusz Węgrzyn ◽  
Maciej Szkoda

The article presents an analysis of the analysis of the current state of regional rail passenger transport services provided in the Podkarpackie voivodship. An analysis was made of the transport services currently provided, the current technical condition of the rail-way infrastructure and the characteristics of the rolling stock in service.


2019 ◽  
Vol 16 (3) ◽  
pp. 264-275 ◽  
Author(s):  
I. M. Ryabovbov ◽  
R. Ya. Kashmanov

Introduction. The authors propose to use a rational distribution of buses, taking into account their passenger capacity and the hours of the day, in order to optimize the operation of the rolling stock (RS) on the route. The usage of RS low-capacity on routes with significant passenger traffic increases the RS need, the load on the transport network and emissions of harmful substances into the atmosphere. Operation of high-capacity buses on routes with low power passenger traffic leads to the large intervals of movement and to the increase of waiting time for passengers. The authors highlight that on the number and type of buses’ determining it is necessary to take into account the city specifics (on the example of Volgograd), such as the presence of only two main streets with three lanes in each direction, adjacent roads through which the routes pass, one lane direction.The length of the city along the Volga river in total is about 90 km, due to the peculiarities of the road network (RN) of the city, any irrational use of the RS leads to a significant load on the road network, and, as a result, to the congestion on the roads. Nowadays the PS is not operated effectively.On most routes of the city the capacity of RS does not correspond to passenger traffic on the route. Possible way to optimize the use of RS is taking into account the daily load on the road network.Materials and methods. The authors studied the technology of the movement organization of the rolling stock on the № 59 route. In order to optimize the transportation process, the authors used the method of determining the buses’ number by hour of the day on the base of the graph-analytical method. Buses of different capacity were used on this route.Results. The resulting distribution of buses made it possible to combine the interests of carriers and passengers, to increase the efficiency of rolling stock and to reduce the load on the road network.Discussion and conclusions. As a result, the authors present the measures for improving the efficiency of the rolling stock. These measures are the main for improving transport services for population.


Author(s):  
Vladimir Altuhov ◽  
Aleksey Boldyrev ◽  
Pavel Zhirov

The article is devoted to the study of the influence of dynamic loading on the characteristics of polymer elements of shock absorbers of the rolling stock of railways and to the description of the creation of a mathematical model of their work. The results of mathematical modeling are further used to solve problems of the longitudinal dynamics of rolling stock. In the study, the initial loading rate varied, the ambient temperature and the influence of the wear factor remained unchanged. For the operating speeds of a freight car, a mathematical model of the PMKP-110 draft gear was determined.


Author(s):  
A. O Lovska ◽  
O. V Fomin ◽  
A. V Rybin

Purpose. The work aims to investigate dynamic loading of the supporting structure of a gondola car with an elastic-viscous filler in the center sill by means of mathematical modeling. Methodology. Mathematical modeling of the dynamic loading of the supporting structure of a gondola car with a closed center sill filled with a filler with elastic-viscous properties has been carried out. The case of the highest load on the supporting structure of the gondola car in operation is taken into account – a shunting collision, taking into account the action of a load of 3.5 MN on the rear stop of the automatic coupler. To determine the dynamic loading of a gondola car, a mathematical model formed by prof. G. I. Bohomaz was used. However, within the framework of this study, the model was refined by adapting it to the determination of the dynamic loading of a gondola car. It also takes into account the friction forces arising between the center plates of the body and the center pivots of the bogies, as well as the properties of the energy-absorbing material. The solution of the mathematical model was carried out in the MathCad software package. In this case, the differential equations of motion were reduced to the Cauchy normal form, and then integrated using the Runge-Kutta method. Initial displacements and speeds are taken equal to zero. The calculation was carried out on the example of a universal gondola car model 12-757 built by Kriukivskyi Carriage Works PJSC (Kremenchug) on standard bogies 18-100. Findings. Accelerations are obtained as components of a dynamic load acting on a gondola car with a closed center sill structure filled with an elastic-viscous filler. It was found that with the stiffness of the center sill filler of 82 kN/m, as well as the viscous resistance coefficient of -120 kN∙s/m, the maximum accelerations of the gondola car supporting structure is about 37 m/s2 (0.37g). Originality. A mathematical model is proposed for determining the dynamic loading of a gondola car with a closed structure of a center sill filled with an elastic-viscous filler. The model makes it possible to obtain accelerations as the components of the dynamic loading acting on the supporting structure of the gondola car, taking into account the improvement measures during a shunting collision. Practical value. The results of the research will help to reduce the damage to the supporting structures of gondola cars in operation, reduce the cost of their maintenance, create developments in the design of innovative structures of rolling stock, as well as increase the efficiency of its operation.  


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