scholarly journals Development of a system of transport-interchange hubs in urban transport network

2021 ◽  
Vol 112 ◽  
pp. 00015
Author(s):  
Oleg V. Moskvichev ◽  
Svetlana A. Leonova
Keyword(s):  
Optimal Choice ◽  
Urban Transport ◽  
Transport Systems ◽  
Mathematical Methods ◽  
Passenger Traffic ◽  
Transport Services ◽  
Scientific Results ◽  
Integer Programming Problems ◽  
Definition Of

The paper considers the issues of the formation of a system of transport interchange hubs (TIH), associated with the determination of the location of TIH in order to improve the quality of the provided transport services. The model of the optimal choice of TIH system is presented in the form of a linear Boolean programming problem. The paper gives the factors that reduce the average travel time around the city due to the formation of a system of transport hubs. In order to solve the problem of the choice of TIH locations, the approach based on the definition of “effective interchange hubs” is proposed. The determination of effective interchange hubs is carried out according to the following algorithm. First we found a list of non-stop (direct) rides. Then, we consider the rides for which there is no direct route or for which there is such a route, but this revealed connecting route will take less time. These hubs are efficient. Next, a list of effective interchange hubs is determined and the amount of passenger traffic at each hub is specified. Using mathematical methods to solve integer programming problems, it is possible to select such efficient interchange hubs, in which it is advisable to create transport interchange hubs. These scientific results can be used in programs and projects for the development of urban transport systems in the development of basic requirements for the formation of transport hubs.

scholarly journals Tariff policy offers on the line of magnetic levitation transport

2021 ◽  
Vol 7 (1) ◽  
pp. 139-157
Author(s):  
Maria V. Fedorova
Keyword(s):  
High Speed ◽  
Magnetic Levitation ◽  
Urban Transport ◽  
Transport Systems ◽  
Rolling Stock ◽  
Tariff Policy ◽  
Passenger Traffic ◽  
Transport Services ◽  
Transport Line

Background: It is proposed to use maglev transport as the basis for the development of the transport system of urban agglomerations. Its operation requires a special high-speed infrastructure, new rolling stock. The project for the construction and operation of the maglev transport line (MLT) St. Petersburg Sertolovo has an extremely long-term nature, significantly affects the development of urban high-speed transport, and therefore its implementation is possible only within the framework of strategic management of the development of urban transport systems. Aim: Commissioning of maglev transport lines in places of concentration of growing passenger traffic, which will help to reduce travel time, meet freight needs, improve the quality and increase travel safety when driving on dedicated lanes. Method: The article has developed proposals for the tariff policy on the maglev transport lines. Also, a forecast of passenger traffic on the MLT line was given, taking into account the recommended tariffs for collecting tolls, and the potential income of the project on the MLT line was determined. Results: The purpose of the introduction of this MLT line is to improve transport services and reduce the time spent on trips for the population of the city of Sertolovo by providing high-speed communications, improving the technical level of rolling stock and MLT stops, which significantly affects the comfort of passenger movement.

scholarly journals The Effects of the Selective Enlargement of Fare-Free Public Transport

2020 ◽  
Vol 12 (16) ◽  
pp. 6390 ◽  
Author(s):  
Krzysztof Grzelec ◽  
Aleksander Jagiełło
Keyword(s):  
Public Transport ◽  
Market Research ◽  
Urban Transport ◽  
Transport Systems ◽  
Local Authorities ◽  
The Public ◽  
Transport Services ◽  
Mode Of Transportation ◽  
Free Transport ◽  
Using Data

In recent years fare-free public transport (FFPT) found itself at the centre of attention of various groups, such as economists, transport engineers and local authorities, as well as those responsible for the organisation of urban transport. The FFPT is hoped to be the answer to contemporary transport-related problems within cities, problems which largely result from insensible proportions between trips carried out via personal mode of transportation and those completed by the means of public transport. This article reviews the motives and effects connected with the introduction to date of fare-free transport zones across the globe. It also presents, using data obtained in market research, the actual impact of a selective extension of the entitlement to free fares on the demand for urban transport services. The effects observed in other urban transport systems were then compared against those observed in relation to one, examined system. Analyses of observed FFPT implementation effects were then used to establish good and bad practices in the introduction of FFPT. The article also contains forecasts on the effect of the extension of entitlement to free fares and an increase in the public transport offer may have on the volume of demand for such services. The analyses have shown that an increase in the public transport offer (understood as an increase in the volume of vehicle-kilometres) would increase the demand for urban transport services more than the selective implementation of FFPT (assuming that the costs incurred by the local authorities remain unchanged).

scholarly journals Investigation of hydraulic fitting losses

2018 ◽  
Vol 168 ◽  
pp. 02011 ◽  
Author(s):  
Marian Bojko ◽  
Milada Kozubková
Keyword(s):  
Flow Direction ◽  
Experimental Methods ◽  
Numerical Approach ◽  
Model Verification ◽  
Hydraulic Systems ◽  
Mathematical Methods ◽  
Standards And Regulations ◽  
Definition Of ◽  
Resistance Coefficients

Fluid flow in hydraulic systems, fittings, and piping causes hydraulic losses due to the change of flow direction and friction in the fluid. The main consequence of the resulting losses is the increase in the overall pressure gradient of the circuit. The paper is focused on the investigation of valve losses and the determination of resistance coefficients, the definition of which depends on the valve type. Methods of determination are of two types, i.e. experimental methods and mathematical methods. In the case of experimental methods, the procedures prescribed by the standards and regulations must be respected. Mathematical methods are related to defining an appropriate mathematical model and numerical approach. Both methods are applied to the ball valve and model verification is performed at the same time. The output of the thesis is the methodology for determination of resistance coefficients of valves with other diameters and other flowing media based on verified mathematical modeling.

scholarly journals Development of material and technical base urban transport companies in Western Siberia in years of eighth five-year plan (1966–1970)

2020 ◽  
Vol 5 (4) ◽  
pp. 9-15
Author(s):  
M. K. Alafiev ◽  
Keyword(s):  
Public Transport ◽  
Western Siberia ◽  
Urban Transport ◽  
Rolling Stock ◽  
Passenger Traffic ◽  
Transport Services ◽  
Technical Base ◽  
Urban Public Transport ◽  
New Type

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

scholarly journals On the Issue of Assigning Additional Stops for Long-Distance Passenger Trains within the Boundaries of the City of Moscow

2020 ◽  
Vol 18 (2) ◽  
pp. 172-197
Author(s):  
O. N. Pokusaev ◽  
A. E. Chekmarev ◽  
V. S. Evseev
Keyword(s):  
Urban Transport ◽  
Transport Systems ◽  
Long Distance ◽  
Transit System ◽  
Railway Stations ◽  
Transportation Services ◽  
Passenger Traffic ◽  
Railway Traffic ◽  
Passenger Trains ◽  
The City

In many world’s most populous cities, railways are an integral part of urban transport systems. Commuter and intraurban passenger railway traffic is often and widely considered in this context. On the other hand, the constant growth in passenger traffic of longdistance trains, traditionally gravitating towards railway stations and adjacent urban transport hubs, including metro stations through which arriving passengers pass towards their final destinations in the city, requires search for new solutions to improve comfort of the trip for passengers, and to remove the excess load from the urban transit system. Considering the experience and features of organization of long-distance passenger railway traffic in various countries, the authors based on previous research suggests certain solutions regarding Moscow railway hub. To organize comfortable environment for passengers of all categories of trains, it is advisable to develop a balanced technology of train traffic within the Moscow junction, excluding overloading of individual elements of the transport system (in particular, of rail stations in the city center). The objective of the article is to analyze global experience in organizing traffic of long-distance passenger trains within the boundaries of large agglomerations and to develop proposals to organize additional stopping points for long-distance trains in various districts of Moscow, which will help reduce the load on central transport and interchange hubs, improve quality of transportation services for passengers, and develop the districts of Moscow and Moscow region adjacent to the new TIHs.

scholarly journals INFORMATION SUPPORT OF MODELING OF GRAVITY FUNCTION OF EMPLOYEES OF CITY SERVICE ENTERPRISES

2021 ◽  
Vol 3 (163) ◽  
pp. 165-172
Author(s):  
I. Chumachenko ◽  
N. Davidich ◽  
A. Galkin ◽  
Yu. Davidich ◽  
Y. Kush ◽  
...  
Keyword(s):  
Urban Transport ◽  
Information Support ◽  
Transport Systems ◽  
Average Salary ◽  
Passenger Traffic ◽  
Urban Service ◽  
Passenger Flows ◽  
The Cost ◽  
The Impact ◽  
The City

The article is devoted to the establishment of information support to determine the patterns of changing the function of gravitation of employees of the urban-service enterprises. It has been established that the development of urban transport systems is impossible without the use of information technology to predict the parameters of the formation and absorption of passenger traffic. The design of urban transport systems cannot be achieved without assessing the impact of traffic improvement measures on changes in traffic and passenger flows. The main parameter by which it is possible to predict the choice of places of gravity by the inhabitants of cities is the function of gravitation between different areas of the city. The formalized functions of the gravitation of urban dwellers are not differentiated by the social composition of the population of cities. In addition, they use only travel time between areas of the city as an independent variable. The article proposes the formalization of the gravitation function of employees of the urban service enterprises using the parameters of the urban transport system, areas of departure and arrival, as well as the cost of movement. A special questionnaire has been developed to obtain the original information. A natural survey was carried out using it. As a result of the processing of survey data using correlation and regression analysis methods, the degree of influence of the studied factors on the value of the gravitation function of employees of urban service enterprises was revealed. Analysis of the correlation values obtained showed that the most significant impact on the value of the gravitation function of employees of urban services is the ratio of the cost of movement between districts and average wages in the city. The least impact is the distance from the area of residence to the place of application of work, the ratio of the cost of one square meter of housing in the area of residence and the average salary in the city, the ratio of the cost of one square meter of housing in the area of employment application and the average salary in the city. However, the compatible influence of all factors can change the level of influence of each factor and its combinations. In addition, it is advisable to take into account the technical and operational performance of urban passenger transport routes and individual transport routes.

scholarly journals Environmental Effects of Electromobility in a Sustainable Urban Public Transport

2020 ◽  
Vol 12 (3) ◽  
pp. 1052 ◽  
Author(s):  
Krystian Pietrzak ◽  
Oliwia Pietrzak
Keyword(s):  
Air Pollution ◽  
Public Transport ◽  
Fossil Fuels ◽  
Negative Influence ◽  
Air Pollutant ◽  
Urban Transport ◽  
Pollutant Emissions ◽  
Transport Systems ◽  
Mathematical Methods ◽  
Obvious Effect

This article has taken up an issue concerning the influence of the implementation of electromobility assumptions on reduction of air pollution in cities in terms of sustainable urban transport systems. The essential nature of the subject is confirmed by the following figures: transport is responsible for almost 25% of greenhouse gas emissions in Europe and is the main cause of air pollution in cities, almost 90% of city dwellers in the EU are exposed to levels of air pollutants deemed harmful by the WHO, and approximately 95% of vehicles on European roads still use fossil fuels. Therefore, the implemented transport policy, both in the international and domestic aspect of particular countries, is facing the need to significantly reduce the negative influence of transport on people and the environment. Electromobility has become one of the concepts that makes it possible to achieve this goal. Its main objective is to reduce emissions of harmful substances into the environment by deploying electric vehicles (EVs). Research conducted by the authors showed that public transport, apart from the obvious effect of decreased number of private vehicles and decreased congestion, can contribute to reduced air pollutant emissions and become a significant driver for the implementation of electromobility in cities. However, the achievement of this goal depends on taking appropriate actions not only in the transport branch but also in other sectors of economy. The following research methods were applied in the article: literature analysis, documentary method, case study, and mathematical methods. The research area was the city of Szczecin, Poland.

scholarly journals SUSTAINABILITY INDEX ASSESSMENT OF URBAN TRANSPORT SERVICES IN DEVELOPING CITIES

ASTONJADRO ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 150
Author(s):  
Muhammad Nanang Prayudyanto
Keyword(s):  
Transport System ◽  
Public Transport ◽  
The State ◽  
Urban Transport ◽  
Transport Systems ◽  
Urban Mobility ◽  
Public Transport System ◽  
Transport Services ◽  
Developing Cities ◽  
Asian Cities

<p>The growth and concentration of motor vehicles in developing cities has led to increased demand for urban mobility. Renewed commitments of Asian cities are required in order to achieve the SDG target on urban mobility as well as to enhance overall sustainability of urban transport systems and services. Cities and countries need to track the progress in improving urban mobility. With a view to support evidence based decision, the paper introduces the Sustainable Urban Transport Index (SUTI) of urban transport services, to help summarize, track and compare the state of urban mobility in Asian cities, as model for developing cities in the world. It also presents the results of pilot application of SUTI in four Asian cities: Greater Jakarta; Kathmandu; Hanoi; and Colombo. The four pilot cities were able to collect data, analyzed and assess the state of urban mobility in their city using SUTI. The assessment result supported policy makers to identify policy gaps, prioritize additional measures and investment strategies required to improve urban transport systems and services in each city. The visual output display in spider diagram was useful to comprehend state of all 10 key indicators in a glace. The pilot study demonstrated the usefulness of SUTI tool and the pilot cities were already using the results of SUTI analysis. In Kathmandu additional efforts are required to improve pedestrian infrastructure and facilities, Colombo needed to improve quality and reliability of public transport system, while Hanoi and Greater Jakarta need to put additional efforts to increase mode share of public transport system.</p>

scholarly journals Methodological Approaches to Providing State Support for Development of Public Urban Passenger Transport

2021 ◽  
Vol 18 (4) ◽  
pp. 108-117
Author(s):  
E. O. Bryazgina ◽  
D. M. Kazmin
Keyword(s):  
Sharp Decrease ◽  
Urban Transport ◽  
Transport Systems ◽  
Rolling Stock ◽  
Passenger Transport ◽  
Intelligent Transport Systems ◽  
State Support ◽  
The Public ◽  
Intelligent Transport ◽  
Passenger Traffic

The article, based on the analysis of the existing methods for selection of constituent entities of the Russian Federation to be provided with federal support in modernization of the rolling stock of public urban passenger transport and introduction of intelligent transport systems within the framework of the national project «Safe and High-Quality Highways», highlights main approaches and principles used by the federal authorities as guidelines when making decision on the public state support of the activity planned by the regions in the field of urban transport development. The adequacy of these approaches is considered for cases when state support for public urban passenger transport should be provided on an emergency basis (in particular, under the conditions of a sharp decrease in passenger traffic and ticket revenue due to anti-epidemic measures), proposals are formulated to update these approaches.

scholarly journals Assessment of the level of metropolitan cities transport system development

2019 ◽  
Vol 16 (1) ◽  
pp. 22-31
Author(s):  
Oleg I. Karasev ◽  
Anna O. Krivtsova
Keyword(s):  
New York ◽  
Transport System ◽  
Road Traffic ◽  
Municipal Government ◽  
System Development ◽  
Ecological Impact ◽  
Urban Transport ◽  
Transport Systems ◽  
Large Cities ◽  
Transport Services

Purpose of the study.The study focuses on issues of the level assessment of transport system development of large cities. Despite the wide variety of studies on this issue, there is currently no universal approach to assessing the level of development of the transport system at megalopolises. The present study aims to create a tool for a comprehensive assessment of various aspects of urban transport development that are important for all categories of transport users, and to provide a comparative analysis of the world’s leading megacities in terms of transport development based on the proposed methodology.Materials and methods.In the study, the authors apply an approach related to the construction of integral indexes and ratings of cities based on the values of these indexes. In the calculations of the index, the authors use statistical data from authoritative open sources and information systems of national and municipal government.Results.Based on the results of the world practice analysis, the authors propose the Urban Transport Development Index developed in order to compare the level of transport system development in various cities. The Index provides an opportunity to identify the weaknesses and strengths of cities, to find reserves for the further improvement and development of recommendations in the field of transport policy on this basis. The Index consists of four sub-indexes: the availability of transport services for the urban population, the quality of transport services, road traffic security and the ecological impact of transport, and freight logistics performance. The Index reflects the main aspects of urban transport development and shows the views of different categories of population on the level of transport services. The paper examines the level of transport system development for 2010, 2015, 2016 and 2017 of a group of comparable cities, which includes Hong Kong, London, Mexico, Moscow, New York, St. Petersburg, Singapore, Istanbul, Tokyo and Shanghai. The results showed that Tokyo and London have occupied the leading positions during the period under review. For the seven years Moscow, St. Petersburg and Shanghai have showed the best dynamics of the Index.Conclusion.The proposed method allows both to evaluate the effectiveness of individual regulatory measures known in the practice of other cities, and to simulate their impact on the transport system of the city. The paper concludes with recommendations for further development of cities’ transport systems.

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