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. ◽  

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.

2021 ◽  
pp. 166-174
Author(s):  
С.А. Селиверстов ◽  
Я.А. Селиверстов ◽  
А.Г. Котенко ◽  
О.Ю. Лукомская ◽  
Н.В. Шаталова ◽  
...  

Развитие технологий проектирования интеллектуальных систем, использующих алгоритмы схожие с мыслительной обработкой мозга, стимулируют поиски новых подходов для создания искусственного интеллекта человеческого уровня. Для выполнения столь сложных задач используются когнитивные архитектуры, представляя собой следующий уровень развития разнородных процессов интеллектуализации. В данной статье под практической призмой интеллектуализации транспортных систем исследуется процесс развития современных когнитивных архитектур. Предметом исследования является разработка структурной схемы когнитивной транспортной системы. Для выполнения этой задачи исследуются новые парадигмы когнитивного управления, расширяющие подходы к вычислительному интеллекту. Уточняется понятие когнитивной архитектуры. Исследуются современные работы в области каталогизации когнитивных архитектур. Выявляются критерии оценки когнитивных архитектур. Подробно рассматриваются и анализируются когнитивные архитектуры 4D / RCS, ALLIANCE, LIDA, использующиеся в современных системах управления беспилотным транспортом и роботами. Выявляются положительные обобщенные факторы, направленные на эффективность когнитивной архитектуры. Разрабатывается структурная схема когнитивной транспортной системы, основные подсистемы которой включают когнитивное управление транспортом, когнитивные транспортные коммуникации, когнитивные транспортные средства. Описывается структура слоев. Отмечаются преимущества, в том числе бионинспирированность, модульность, объектно-ориентированность, параллелизм, возможность использования интеллектуальных методов обучения. The development of technologies for the design of intelligent systems using algorithms similar to mental processing of the brain stimulates the search for new approaches to create artificial intelligence at the human level. To perform such complex tasks, cognitive architectures are used, representing the next level of development of heterogeneous intellectualization processes. In this article, under the practical prism of intellectualization of transport systems, the process of development of modern cognitive architectures is investigated. The subject of the research is the development of a structural diagram of the cognitive transport system. To accomplish this task, new paradigms of cognitive control are being investigated, expanding approaches to computational intelligence. The concept of cognitive architecture is clarified. Examines current work in the field of cataloging cognitive architectures. Criteria for assessing cognitive architectures are identified. Cognitive architectures 4D / RCS, ALLIANCE, LIDA, used in modern control systems for unmanned vehicles and robots, are considered and analyzed in detail. We identify positive generalized factors aimed at the effectiveness of cognitive architecture. A structural diagram of the cognitive transport system is being developed, the main subsystems of which include cognitive transport control, cognitive transport communications, and cognitive vehicles. The structure of the layers is described. The advantages are noted, including bioninspiration, modularity, object-orientation, parallelism, the possibility of using intelligent teaching methods.


2021 ◽  
Vol 26 (jai2021.26(2)) ◽  
pp. 104-109
Author(s):  
Shuts V ◽  
◽  
Shviatsova A ◽  

This article is devoted to description of the basic principles of constructing a motion schedule in an intelligent urban passenger transport system based on robotic vehicles, which ensures the non-conflict motion of unmanned vehicles, in which the vehicles in front do not delay those following them. In the introduction of the article, a description of the basic problems of modern urban passenger transport systems and the formulation of the research targets are given. The section "Principles of ITS function" provides a description of the transport system concept and principles of functioning for the aim that the reader can receive a holistic view of the research subject. A basic characteristic features of this intelligent urban passenger transport system are that ITS is capable of timely adjusting to changes in demand for transportation, because processes occurring in the transport system (collection of service requests, data processing and analysis, planning and organization of transportation) are cyclical and are carried out in real time. The drawing up of the movement schedule of vehicles also occurs in real time. In the section "Drawing up a traffic schedule of vehicles" the basic principles of constructing a vehicles traffic schedule are given and their usage is demonstrated with a specific example. The introduction in usage this intelligent city passenger transport system, built on the proposed principles, will allow to get technology of passenger transportation that able to adaptive changes of number autonomous transport units that are used in transportation, depending on the demand for transportation. Such approach allows both to fully and timely satisfy the needs of passengers, and to save the resources of the transport system, what is the main aim of each passenger transport system


Author(s):  
D. Yu. Romenkiy ◽  
◽  
K. A. Kalinin ◽  

When designing passenger transport systems and modeling their operation, researchers face the problem of choosing the consumer properties of the transport system. In modern conditions, in order to compete with other modes of transport, each transport system must offer the passenger a continuous mode of operation, in which the passenger does not need to adjust to the schedule, but only needs to arrive at the stop point and wait for the nearest vehicle (train, bus, etc.). One of the most important characteristics required for design and simulation is the time that a passenger is willing to spend waiting for a vehicle at a station without compromising the comfort of transportation. The paper reveals regularities between such important parameters of schedules as the maximum allowable (optimal for the organizer of transportation) and comfortable (for the passenger) value of intervals between vehicles on the example of suburban-urban railway passenger transportation. A qualitative estimation of the speed parameter of the vehicle traffic schedule is introduced. The values of comfortable and maximum permissible intervals between trains are determined depending on the distance (duration) of the trip.


Author(s):  
Denis Vlasov ◽  
Sergey Vakulenko ◽  
Dmitry Romenskii

In the world practice of recent decades, monorail transport systems have been actively developing as an element of the mass passenger transport system. There is a monorail line in Moscow, which has exhausted its operational reserves and needs reconstruction. The article discusses the possible directions of development of the monorail in Moscow. Five possible directions of development have been identified, including the transformation of the line into other modes of transport (tram), the construction of an extension of the monorail line in various directions, the arrangement of urban public spaces and the renewal of rolling stock. Construction of an extension of the existing monorail line, rebuilding the system into a tramway, arrangement of a linear fleet — these are very costly options that require a significant amount of time to discuss projects. The most promising direction in the development of the system is the renewal of the rolling stock or its complete replacement while preserving the linear part of the monorail.


2020 ◽  
Vol 16 (1) ◽  
pp. 21-25
Author(s):  
Jozef Gašparík ◽  
Milan Dedík ◽  
Martin Vojtek ◽  
Adrián Šperka

AbstractIncreasing population mobility and current trend of creating integrated passenger transport systems are opportunities for finding new possibilities to rationalization the railway passenger transport on those lines, where are no passenger trains or where the traffic service is not optimal nowadays. Precondition of reinstating the railway passenger transport is thorough potential passenger analysis, where there are actual geographic, demographic and transport characteristics of the region, where this line is situated. The contribution describes the passenger transport system, timetables rationalization and standards of traffic service in rail passenger transport. Consequently, according to these outputs and demographic and transport characteristic was proposed the rationalization of traffic service at Zvolen – Šahy transport route.


2019 ◽  
Vol 15 (1) ◽  
pp. 12-15
Author(s):  
Martin Vojtek ◽  
Martin Kendra ◽  
Jaromír Široký

Abstract Integrated passenger transport system consists of many factors with various impacts on the entire system quality. In passenger transport, there are mostly individual passengers therefore it is difficult to determine all transport requirements. In the passenger transport system, there are several modes of transport, but passengers mostly use road and rail transport. Passenger transport system is influenced by many qualitative factors with various impacts. The paper is focused on analysis of the role of railways in integrated passenger transport systems. The analysis is from passenger point of view because the key element in railway passenger transport is the passenger (customer), who requires the transport from one place to another. A basic precondition for accomplishing the main requirement (transport), is making the complete offer which provides not only transport, but also other complementary services. There are several types of passenger trains, which jointly create a part of integrated transport system. Quality of this transport system depends on train route topology, timetable of trains, number and location of all stations and stops. Primary function of the transport system is providing transport for passengers on regional, national-interregional and international level; therefore, the analysis involves these levels.


2020 ◽  
Vol 26 (10) ◽  
pp. 88-98
Author(s):  
M. Oborin ◽  

The transport system is an important part of the infrastructure of the Russian Federation, the development of which contributes to economic growth and stability, guarantees the integrity of the state, national security and defense of the country, improves the life of the population, and brings the Russian state closer to the world economic level. The article examines the factors that influence the development of transport infrastructure in the region. Specific regional features and their significance in the development of transport infrastructure are identified, and a classification of regions and transport infrastructures is proposed. The relevance of the research topic is related to the fact that transport infrastructure is directly connected with the life support systems of the region, has a direct impact on the production sectors, and contributes to the effective functioning and development of the production sector. The purpose of the article is to study approaches and factors affecting the development of transport systems in the regions of Russia. Research methods: system, situational approaches, analysis and description of theoretical and methodological factors that determine the prospects for socio-economic development of the region based on the coordination of strategic goals of regional policy with the goals of transport infrastructure development. Results. The article considers different approaches, classifies the transport infrastructure of the region, and identifies specific factors that influence the development of the transport system. The analysis of the transport system of the Krasnodar territory was carried out and strategic directions for its improvement were determined. Conclusions. The results of the analysis have shown that despite the diversification of transport routes in the Krasnodar territory (water, rail transport), a significant share is accounted for by road transport. Digitalization is one of the most relevant and promising areas of development of the transport system. Intelligent systems will allow to provide innovative integrated transport services, depending on the constantly changing needs of the client. To improve the regional transport system, it is necessary to improve the types of road networks and develop a modern regulatory framework for the transport sector


Author(s):  
Nelya V. Bulycheva ◽  
◽  
Leonid A. Losin ◽  

The calculation of the matrix of correspondences and the formation of passenger flows on a conditional network are described. This approach expands the range of tasks solved by modeling, allows one to solve the problem of synthesis of a municipal transport network, and provides working hypotheses for the development of the structure of a municipal passenger transport, in the framework of which different variants of geometry of the passenger transport network can be formed.


2021 ◽  
Vol 6 ◽  
pp. 49-53
Author(s):  
Valentina Kovrei ◽  
◽  
Lyudmila Dubeshko

The article deals with the issues of innovative development of passenger transport through the introduction of IT technologies; intelligent transport systems in major cities of the world; the functions of the state in the creation and operation of intelligent transport systems. The article analyzes the legal framework of the Republic of Belarus, the state of information technologies in transport, and the need for their integration. A number of practical steps aimed at creating an intelligent transport system in Minsk are proposed.


Author(s):  
Johanna Camargo-Pérez ◽  
Jairo R. Montoya-Torres

Multiple actors from both private and public sectors are currently involved in the design and operation of urban passenger transport systems seeking at optimizing their own objectives. Multi-criteria decision-making (MCDM) techniques actually aid this process. In this chapter, the authors consider the problem of locating multimodal terminals of an integrated public passenger transport system (IPPTS). A case study for the city of Bogota, Colombia is evaluated. Majority of works in MCDM does not explicitly justify the choice of the applied technique. This chapter applies three different techniques, AHP (analytic hierarchy technique), ELECTRE II (elimination and choice expressing the reality), and CRITIC (criteria importance through intercriteria correlation), to solve problem. A feature of this study is that traditional economic and logistic criteria are evaluated together with environmental and social criteria not previously evaluated in the literature. Numerical results show that each multi-criteria approach may prefer a different alternative, depending on the intrinsic behavior of each technique.


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