scholarly journals Multi-criteria path rationalization in the conditions of multi-type passenger transport systems

2021 ◽  
pp. 109-116
Author(s):  
V. V. Egorov
Keyword(s):  
Graph Model ◽  
Transport Systems ◽  
Passenger Transport ◽  
End User ◽  
Search Technique ◽  
Transport Networks ◽  
Basic Algorithm ◽  
Passenger Travel ◽  
Pedestrian System ◽  
Convolution Method

The article proposes methods of searching passenger travel routes in conditions where one or more optimization criteria must be taken into account in the presence of a pedestrian system and multi-type transport systems with their topologies, sets of parameters and tariff plans. The author carried out the research by means of mathematical modeling of the transport system in the form of its deterministic graph model. The author chose Dijk-stra's algorithm as the basic algorithm, on the basis of which the modifications of the previous ones were carried out and the construction of a new search technique was carried out. As a result, the study obtained algorithms for solving single-criteria and multi-criteria problems on graphs. For multicriterial problems, the author used the convolution method and the method of ordering criteria by the degree of decreasing their significance. The field of application of the developed algorithms is information systems focused on the end user and on the structures that design and manage transport networks.

The Role of Politics in the Historical Transport Networks of the Iberian Peninsula and the Pyrenees from Roman Times to the Nineteenth Century

2021 ◽  
Vol 45 (2) ◽  
pp. 233-260
Author(s):  
Pau de Soto ◽  
Cèsar Carreras
Keyword(s):  
Iberian Peninsula ◽  
Social Factors ◽  
Transport Network ◽  
Political Organization ◽  
Transport Systems ◽  
The Political ◽  
Political Systems ◽  
Transport Networks ◽  
Political Economic

AbstractTransport routes are basic elements that are inextricably linked to diverse political, economic, and social factors. Transport networks may be the cause or result of complex historical conjunctions that reflect to some extent a structural conception of the political systems that govern each territory. It is for this reason that analyzing the evolution of the transport routes layout in a wide territory allows us to recognize the role of the political organization and its economic influence in territorial design. In this article, the evolution of the transport network in the Iberian Peninsula has been studied in a broad chronological framework to observe how the different political systems of each period understood and modified the transport systems. Subsequently, a second analysis of the evolution of transport networks in the northeast of the Iberian Peninsula is included in this article. This more detailed and geographically restricted study allows us to visualize in a different way the evolution and impact of changes in transport networks. This article focuses on the calculation of the connectivity to analyze the intermodal transport systems. The use of network science analyses to study historical roads has resulted in a great tool to visualize and understand the connectivity of the territories of each studied period and compare the evolution, changes, and continuities of the transport network.

scholarly journals Environmental Load Evaluation of Variety of Medium Capacity Passenger Transport Systems Applying LCA

2006 ◽  
Vol 23 ◽  
pp. 355-363 ◽  
Author(s):  
Motohiro OSADA ◽  
Yukiko WATANABE ◽  
Naoki SHIBAHARA ◽  
Hirokazu KATO
Keyword(s):  
Transport Systems ◽  
Environmental Load ◽  
Passenger Transport ◽  
Load Evaluation

scholarly journals A Novel Model for Determining Public Service Compensation in Integrated Public Transport Systems

2018 ◽  
Vol 10 (9) ◽  
pp. 2969 ◽  
Author(s):  
Gordan Stojić ◽  
Dušan Mladenović ◽  
Olegas Prentkovskis ◽  
Slavko Vesković
Keyword(s):  
Public Service ◽  
Public Transport ◽  
Free Market ◽  
Transport Systems ◽  
Passenger Transport ◽  
Market Conditions ◽  
The Public ◽  
Transport Services ◽  
Optimal Approach ◽  
Novel Model

In free market conditions, if public passenger transport services are commercially unprofitable, there will be no interest for transport companies to perform them. However, directly because of the citizens’ interests, on the one hand, and indirectly because of the economy, passenger public transport services have become of a general public interest. The authorities must prepare appropriate legal fair market conditions, based on which public transport will be subsidized and conducted. In order to achieve that, for the mutual benefit of the public, users and transport companies, it is necessary that the right Public Service Obligation Model (PSO model or in some literature PCS—Public Service Compensation) be defined. Within this study, the optimal approach to assigning a PSC contract to transport companies for performing the PSO in integrated and regular public passenger transport systems is determined. A novel model, presented in this paper, can help national, regional and local authorities to choose and determine the way and level of PSCs for conducting the public transport of passengers and establishing a sustainable public passenger transport system.

scholarly journals “Mass Centre” Vectorization Algorithm for Vehicle’s Counting Portable Video System

2016 ◽  
Vol 17 (4) ◽  
pp. 289-297
Author(s):  
Vladislav Gaidash ◽  
Alexander Grakovski
Keyword(s):  
Low Cost ◽  
Transport Infrastructure ◽  
Transport Systems ◽  
Intelligent Transport Systems ◽  
Basic Algorithm ◽  
Counting System ◽  
Object A ◽  
Intelligent Transport ◽  
Mass Centre ◽  
Mobile Vehicle

Abstract Vehicle counting is one of the most basic challenges during the development and establishment of Intelligent Transport Systems (ITS). The main reason for vehicle counting is the necessity of monitoring and maintaining the transport infrastructure, preventing different kind of faults such as traffic jams. The main applied solution to this problem is video surveillance, which is presented by different kind of systems. Some of these systems use a network of static traffic cameras, expensive for establish and maintain, or mobile units, fast for redeployment, but fewer in diversity. In this paper, one particular concept of a low-cost mobile vehicle counting system is investigated, which uses an object detection method based on calculating “mass centre” of detected features of possible object. A hypothesis of improvement of the basic algorithm was formulated and a modification was proposed. In order to prove the hypothesis, both basic and modified algorithms were tested and evaluated.

scholarly journals Global Problems of Development of the Agglomeration Transport Systems

2021 ◽  
Vol 334 ◽  
pp. 02030
Author(s):  
Norair Bludyan
Keyword(s):  
International Experience ◽  
Transport Systems ◽  
Passenger Transport ◽  
Global Problems ◽  
Methodological Problems

The article describes the trends of development of the agglomeration transport systems and scientific and methodological problems of territorial-transport forecasting and planning. Native and international experience in the use of “large amounts of data” in the organization of passenger transport was considered. Promising areas of agglomeration transport systems were determined.

The criterion of arising motion conflict of unmanned vehicles during implementing transportation plan in intelligent urban passenger transportation system

2020 ◽  
Vol 25 (3) ◽  
pp. 79-84
Author(s):  
Shviatsova A.V. ◽  
◽  
Shuts V.N. ◽  
Keyword(s):  
Transport System ◽  
Intelligent Systems ◽  
Historical Context ◽  
Unmanned Vehicles ◽  
Transport Systems ◽  
Passenger Transport ◽  
Electric Cars ◽  
The Matrix ◽  
Minimum Number ◽  
Transportation Plan

The proposed article is devoted to the description of an intelligent urban passenger transport system based on unmanned electric vehicles, sequentially moving along a separate line. This system is a passenger transport system of a new urban mobility, formed under the influence of social conditions generated by high population density in cities, that suppose the development of pedestrian zones and ecological modes of transport, "transport as a service", etc. In this historical context, public transport systems acquire special relevance. The described transport system belongs to intelligent systems, since it is capable of functioning in autonomous mode without human intervention, adaptively responding to changes in the dynamics of the flow of passengers during the day. Passengers are transported by electric cars, which can be combined into cassettes according to the principle of road trains based on the transportation plan drawn up by the intelligent center of the transport system according to the matrix of correspondences, filled in taking into account the incoming requests for service from passengers. When drawing up a transportation plan, the algorithms of the transport system give preference to transportation according to the "source-destination" principle, that is, when the passenger goes to the destination with a minimum number of intermediate stops, and ideally without them. The paper formulates also a criterion of arising of a conflict in the movement of vehicles, which allows to identify situations when an electric vehicle driving in front can detain vehicles following after. The work has relevance because the criterion will allow to make adjustments in the schedule of movement of vehicles and exclude the loss of time and energy that carries the transport system during braking and acceleration of electric cars, as well as to reduce waiting time and travel of passengers.

scholarly journals Compensation Scheme for Self-Employed Bus Service Requisitions in Urban–Rural Passenger Transport

2019 ◽  
Vol 11 (18) ◽  
pp. 4855
Author(s):  
Chunqin Zhang ◽  
Yuting Hu ◽  
Anning Ni ◽  
Hongwei Li
Keyword(s):  
Transport Systems ◽  
Policy Recommendations ◽  
Compensation Scheme ◽  
Passenger Transport ◽  
Highly Educated ◽  
Monetary Compensation ◽  
Urban Rural ◽  
Bus Service ◽  
Low Educated

This paper addresses a compensation scheme for self-employed bus service requisition of rural passenger transport, and provides a theoretical basis and policy recommendations for the smooth implementation of self-employed bus service requisition process and the integration of urban–rural passenger transport resources. Using Chinese urban–rural passenger transport systems in ten cities or counties (including Shenyang, Liaoyang, Wuxi, Suzhou, Laiwu, Zouping, Wuhu, Guangde, Shuangliu, and Fuyang) as research objects, the compensation scheme for self-employed bus service requisition is explored from three aspects: the construction of compensation model, the estimation of compensation amount, and the determination of compensation mode. The conclusions drawn from this study are summarized as follows: (1) The compensation amount consists of the bus service residual value, the compensation for expected profit in the residual operation period, and the awarded amount for signing compensation agreements. (2) Whether or not bus owners accept the compensation amount is closely related to their psychological expectation threshold. Changes in the average profit of the bus service, the driver’s average wage, and the ticket-seller’s wage, have the greatest impact, the second greatest impact, and the smallest impact on their psychological expectation threshold, respectively. (3) Younger and more highly educated owners tend to accept “monetary compensation and reemployment placement”, while older and low educated owners prefer “monetary compensation and social security”. (4) High compensation fees, providing reemployment placement for drivers and ticket-sellers, and implementing monetary compensation in the form of an “expected income dividend installment” can enhance willingness to sign compensation agreements for self-employed bus service.

scholarly journals Modeling and Robustness Study of Railway Transport Networks Using P-Timed Petri Nets

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Anis Mhalla ◽  
Mohanned Gaied
Keyword(s):  
Petri Nets ◽  
Traffic Management ◽  
Control Strategies ◽  
Discrete Event ◽  
Transport Systems ◽  
Population Mobility ◽  
Railway Transport ◽  
Transport Networks ◽  
Modeling And Analysis ◽  
Increasing Demand

The importance of public transport systems continues to grow. These systems must respond to an increasing demand for population mobility and traffic disturbances. Rail transport networks can be considered as Discrete Event Systems (DES) with time constraints. The time factor is a critical parameter, since it includes dates to be respected in order to avoid overlaps, delays, and collisions between trains. P-time Petri Nets have been recognized as powerful modeling and analysis tools for railway transport systems. Temporal disturbances in these systems include railway infrastructure, traffic management, and disturbances (weather, obstacles on the tracks, malice, social movement, etc.). The developments presented in this paper are devoted to the modeling and the study of the robustness of the railway transport systems in order to evaluate the stability and the efficiency of these networks. In this study two robust control strategies towards time disturbances are presented. The first one consists of compensating the disturbance as soon as it is observed in order to avoid constraints violation. The second one allows generating, by the control, a temporal lag identical to the disturbance in order to avoid the death of marks on the levels of synchronization transitions of the P-time Petri net model.

scholarly journals Sustainability Analysis of Competition in Public Transport Systems: A Comparative Case Study in Hungary and Finland

2020 ◽  
Author(s):  
András Lakatos ◽  
Péter Mándoki
Keyword(s):  
Public Transport ◽  
Current Problem ◽  
Transport Systems ◽  
Comparative Case Study ◽  
Passenger Transport ◽  
Railway Systems ◽  
Time Of Travel ◽  
A Current

Ongoing competition between bus and railway systems in European (especially in the middle, south and east part) regional passenger transport is a current problem. Long term sustainability and efficiency in passenger transport requires a balanced transport policy. These subsectors need to be complement each other, not compete. The parallel bus and railway links can result in a competition. This research explores solutions to this issue for long term environmental and economic sustainability optimization. Some of the important factors include the number of inhabitants to be served, public transport availability, and efficiency in time of travel for vehicles and passengers. To ensure long term sustainability of the presented methodology, the effect of interventions was analyzed. The study compares Finland and Hungary in terms of the competition regional railway and bus links.

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