scholarly journals On the Creation of a High-Speed Transport Highway in St. Petersburg

2019 ◽  
Vol 5 (4) ◽  
pp. 73-95
Author(s):  
Nikolai A. Senkin ◽  
Aleksandr S. Filimonov ◽  
Kirill E. Kharitonov ◽  
Vitaliy V. Yakovlev ◽  
Elizaveta O. Bondareva ◽  
...  
Keyword(s):  
Transport System ◽  
Cross Sections ◽  
High Speed ◽  
Tube Steel ◽  
Leningrad Region ◽  
Limit States ◽  
Passenger Traffic ◽  
Rod System ◽  
The Creation ◽  
Selection Of

As part of student research at the St. Petersburg University of architecture and construction, alternative proposals are being developed for the creation of a circumferential high-speed highway with a total length of 147.2 km. Тhe scheme is proposed in the form of a polygon with HUB in the nodes and consists of three main parts: 1 above-ground (62.6 km), 2 above-water (29.6 km) and 3 surface-underground (55.0 km). The main tracks are located in a four-tube steel beam, each tube of which is organized by the technology of vacuum tube transport with a pressure of 10% of the normal for high-speed passenger trains on a magnetic levitation cushion using a linear traction motor (Maglev system). The rail base of the 1520 mm gauge is located along the entire length of the track, both in parking lots, acceleration and braking zones, and on the main high-speed sections for movement with a maximum speed of 500 km per hour. The main direction of research was the development of load-bearing structures that provide the necessary functionality, reliability and safety of structures. In order to reduce the noise impact on the metropolis, overcome numerous artificial and natural obstacles, improve anti-terrorist protection, the main level of the rail track for the above-ground and above-water structures was adopted at +88.00 in the Baltic elevation system. Calculations of variants with determination of internal forces in elements and movements of nodes with use of the program complex SCAD Office 21.1are executed, when accounting for the full range of loads taking into account dynamic effects and non-linearity. The selection of cross-sections of elements according to the method of limit states according to the current norms is carried out. The advantage of the arch-cable-stayed variant with a span of 360 m in strength, stability, stiffness and vertical size (height of supports) is shown. The continuation of research and design work on this topic should lead to the emergence of a district high-speed transport system at the borders of communication between St. Petersburg and the Leningrad region with passenger traffic, quite comparable to the metro line. Aim: To develop a district high-speed transport system at the borders of St. Petersburg and Leningrad region with passenger traffic comparable to the metro line. Materials and Methods: Using the software package "SCAD Office 21.1", the trestle structures are calculated for the combination of operating loads, forces and influences, including the consideration of dynamic aspects and nonlinearity, as well as the selection of cross-sections of elements by the method of limit states. To determine the optimal trestle structures of high-speed highways, namely high-rise and long-length metal structures supporting the overpass beam, calculations with the selection of cross sections of four variants of cable-stayed systems (arch-cable-stayed; cable-stayed rod with inclined cables and steel lattice pylons; the same, steel pipe-concrete pylons; cable-stayed rod system with suspensions according to the patent US5950543 (A). Results: the results of the trial design adopted arch-cable option with a span of 360 m according to the criterion of metal consumption, the consumption of steel amounted to 20.9 tons per 1 m length of highway. Conclusion: the estimated volume of passenger traffic per day for the four-track high-speed line will be 280 thousand passengers, and 102 million passengers per year, which is quite comparable to this figure for the metro line.

scholarly journals Forecast demand for use magnetic levitation transport

2020 ◽  
Vol 6 (4) ◽  
pp. 143-160
Author(s):  
Maria V. Fedorova
Keyword(s):  
High Speed ◽  
Magnetic Levitation ◽  
Rural Settlement ◽  
Rolling Stock ◽  
Leningrad Region ◽  
Peak Period ◽  
Metro Station ◽  
Urban Agglomerations ◽  
Passenger Traffic ◽  
Transport Line

Background: The analysis carried out and the forecasted development prospects of the Vsevolozhsk municipal district show the high socio-economic importance of this territory for St. Petersburg and the Leningrad region. This territory is intensively developing, new residential zones are being formed on it, enterprises are opening, new jobs are being created, and recreational zones are being organized. Active housing construction in the municipalities "City of Vsevolozhsk" and "Zanevskoye rural settlement" is accompanied by a significant increase in the population. According to the forecast, in 2041 the population of the municipal formation "City of Vsevolozhsk" will exceed 100 thousand people, of the "Zanevsky rural settlement" - 180 thousand people. The population of the municipalities of St. Petersburg included in the gravitational zone of the maglev transport line in the direction "Vsevolozhsk - St. Petersburg", in 2041 will increase by 1.4 times compared to 2015, amounting to 520 thousand people. The listed tendencies indicate that in the future the intensity of traffic flows will grow and the demand for the use of maglev passenger transport will increase. Aim: Putting into operation lines of magneto-transport vehicles in places of concentration of growing passenger flows, which will help to reduce travel time, meet freight requirements, improve the quality and increase travel safety when driving along dedicated lanes. Method: We have described the existing transport service system in Vsevolozhsk. The survey of passenger traffic on bus routes operating between Vsevolozhsk and St. Petersburg was carried out by two methods during the periods of morning and evening peaks, as well as during the inter-peak period: visual method and tabular method. The article gives a characteristic of the uneven distribution of passenger traffic at the Ladozhskaya metro station and the socio-economic characteristics of the pedestrian accessibility zone of stopping points, identifies the maximum passenger traffic and the need for rolling stock. Results: As the basis for the development of the transport system of urban agglomerations, it is proposed to use magnetolithic transport. For its operation, a special high-speed infrastructure and a new rolling stock are needed. In other words, there is a need for the development and economic evaluation of projects for the construction and operation of magnetolithic transport lines in the formation and implementation of transport strategies of modern urban agglomerations.

scholarly journals On the creation of the Intelligent multimodal transport system of Russia and the project “Intelligent container chain“

2020 ◽  
Vol 79 (5) ◽  
pp. 276-281
Author(s):  
B. M. Lapidus
Keyword(s):  
Transport System ◽  
High Speed ◽  
Road Transport ◽  
Unmanned Vehicles ◽  
High Tech ◽  
Railway Transport ◽  
Russian Science ◽  
Multimodal Transport ◽  
The Creation ◽  
Transport Complex

In the article, the ideas for the development of unmanned freight vehicles and the construction of high-speed railways are transformed into an innovative resource-efficient and high-tech solution — the creation of an Intelligent Multimodal Transport System of Russia, and the development of projects and structures for unmanned vehicle freight traffic — into the “Intelligent Container Chain” project. The proposals put forward are based on an analysis of the potential of the Russian railways and its implications for the spatial development of the Russian Federation. The trends in the development of unmanned vehicles are analyzed and it is concluded that its implementation in Russia will require the construction of specialized road, energy and digital infrastructure with the appropriate allocation of land allocation and supply of energy, communications and other technological communications. The need to search for new scientific, technological and organizational solutions is shown to achieve synergy between the demand for container road transport and the infrastructural and technological capabilities available in the railway transport system. As such a decision, the expediency of developing a new Intelligent Multimodal Transport System under the auspices of the Russian Railways was substantiated. Priority directions for the development of this system, as well as technical and investment solutions and scientific and technological tasks necessary for its implementation, have been determined. At the same time, questions have been formulated that require scientific study. The advantages of the proposed system for increasing the efficiency of using the transport space and developing a breakthrough competitive infrastructure business of the Russian Railways are disclosed. The prospect of the formation on this basis of unique high-tech groundwork is shown, which makes it possible to realize the potential of Russian science and the transport complex and has a high export potential.

scholarly journals Comparison of Forecasting Methods for Intercity Passenger Flows for Various Modes of Transport

2020 ◽  
Vol 18 (1) ◽  
pp. 74-92
Author(s):  
N. A. Makutsky ◽  
M. S. Fadeev ◽  
P. A. Chistyakov
Keyword(s):  
Transport System ◽  
Measurement Errors ◽  
High Speed ◽  
Data Series ◽  
High Speed Rail ◽  
Historical Aspect ◽  
Time Frequency ◽  
Passenger Traffic ◽  
Advantages And Disadvantages ◽  
Passenger Flows

The article is devoted to methodological features of forecasting intercity passenger flows under the conditions of transformation of the transport system of Russia, namely, the emergence of a new type of rail transport which is high-speed rail. The objective of the article is to present the authors’ methodology for forecasting passenger flows and to prove its higher efficiency relative to the methods used in Russia today. The article considers the historical aspect of forecasting passenger flows, analyzes strengths and weaknesses of existing approaches to forecasting and modelling passenger flows. The authors argue that it is impossible to simulate the number of trips with changes in transportation parameters only on the basis of patterns identified by retrospective data series (the most common approach to forecasting passenger flows in Russia). The article proposes an alternative methodology based on the calculation of passenger’s total costs of a trip, which depend on cost of travel, loss of time, frequency of departure of vehicles and their comfort, as well as considering the dynamics of key social-economic indicators. The technique allows minimizing measurement errors arising from the lack of primary information about some types of passenger transport, as well as calculating the induced demand for trips arising as a result of improved transportation characteristics. The authors identified and expressed in quantitative terms the main factors of redistribution of passenger flows to newly introduced types of transport. The article discusses the experience of forecasting passenger flow according to the proposed method at the example of four itineraries where movement of high-speed trains of Lastochka type started. The forecasted results are compared with the actual volumes of transportation, on the basis of which conclusions are drawn about the effectiveness of the forecasting method and its applicability in modern realities of the Russian transport system. The advantages and disadvantages of the proposed approach to forecasting passenger traffic, as well as the possibilities of its implementation and further development in Russia are identified.

scholarly journals Application of a device for the production of electrovalves by High Speed Friction Welding HSFW and FSW welding

2019 ◽  
Vol 91 (11) ◽  
pp. 33-40
Author(s):  
Damian Miara ◽  
Jolanta Matusiak ◽  
Adam Pietras ◽  
Mateusz Świetlik ◽  
Saverio Zitti
Keyword(s):  
Mechanical Properties ◽  
Automotive Industry ◽  
Friction Welding ◽  
High Speed ◽  
Welding Parameters ◽  
Innovative Technologies ◽  
Machining Center ◽  
Innovative Solution ◽  
The Creation ◽  
Selection Of

In order to meet the current requirements of the automotive industry, associated with the creation of a machining center for the production of cylindrical welded and turned components for the construction of solenoid valves, innovative technologies are needed for joining different materials of construction. The article presents the results of the research on the applicability, production of steel electrovalves elements in the AISI303 and 11SMnPb30 grades, an innovative solution consisting in the combination of HSFW high speed friction welding and friction welding using the FSW method. As part of the research, inter alia, a welding station, selection of the shape and dimensions of tools, selection of welding parameters for the HSFW / FSW method, and tests of mechanical properties of the resulting joints were carried out. The obtained results indicate that the obtained connections are characterized by high and reproducible quality.

scholarly journals Proposals for the construction of overpass structures and transport hubs for the high-speed highway in St. Petersburg

2021 ◽  
Vol 7 (1) ◽  
pp. 99-123
Author(s):  
Nikolai A. Senkin ◽  
Aleksandr S. Filimonov ◽  
Islam M. Khalimbekov ◽  
Angelica I. Kravets ◽  
Dona S. Mitrovska ◽  
...  
Keyword(s):  
Software Package ◽  
High Speed ◽  
Approximate Calculation ◽  
Leningrad Region ◽  
Electric Transport ◽  
Metal Consumption ◽  
Passenger Traffic ◽  
The Cost ◽  
Office Software ◽  
Sea Area

Background: As part of student research at St. Petersburg architectural-construction University continues to develop alternative proposals for the creation of a circumferential highway at the boundaries of communication areas of St. Petersburg and Leningrad region. The article presents the results of research works on optimization of routing highways, according to the architectural layout of buildings, transport hubs, to study the effects the pre-tension of the puffs and the guys at the reduction of efforts and deformations of the main elements of the highway, the calculations of the designs of the most high and loaded sea area. The construction of the 8-high-speed transport highway was upgraded due to restrictions related to the reconstruction of Levashovo and Pulkovo airports, the transfer of the capital of the Leningrad region to Gatchina, and linking to the promising metro stations Strelna, Yanino and Kudrovo. The upgraded scheme of the highway is proposed in the form of an open polygon with transport and interchange nodes in the corners and is based on load-bearing trestle structures of arched-cable design that provide the necessary functionality, reliability and safety. Aim: development of a district high-speed transport system on the borders of St. Petersburg and the Leningrad region, based on the widespread use of electric transport, with passenger traffic comparable to the metro line. Materials and Methods: trestle structures are designed for combinations of operating loads, forces and impacts, including consideration of dynamic aspects and non-linearity, using the "SCAD Office" software package. Results: based on the results of variant design, an arch-cable-stayed version with spans of 180 m and 360 m was adopted as a supporting structure according to the metal consumption criterion, which became the basic one for building a highway of overpass design. From an approximate calculation, it follows that the cost of building a highway on land plots (two-track scheme) compared to the construction of the metro, it is expected to be 5-6 times lower, and on the sea sections 3-4 times lower due to high pylons and deep pile foundations. Conclusion: the estimated volume of passenger traffic per day for the two-track high-speed and two-track high-speed highways will be 208 thousand passengers, and 76 million passengers per year, which is quite comparable to this indicator for the metro line.

CONTEMPORARY ASPECTS IN THE SELECTION OF TOOLS AND TECHNOLOGIES FOR DEVELOPING WEB SITES

2018 ◽  
pp. 125-131
Author(s):  
Petar Halachev ◽  
Aleksandra Todeva ◽  
Gergana Georgieva ◽  
Marina Jekova
Keyword(s):  
Programming Languages ◽  
Web Sites ◽  
Web Site ◽  
Work Process ◽  
Design And Development ◽  
Site Development ◽  
Complicated Process ◽  
The Creation ◽  
Guidelines And Recommendations ◽  
Selection Of

he report explores and analyzes the application of the most popular programming languages from different organizations: GitHub; Stackoverflow; the TIOBE's Community index. The main client technologies: HTML; CSS; JavaScript; Typescript are presented and analysed. Features are characterized and the advantages and the disadvantages of the server technologies are described: Java; PHP; Python; Ruby. The application areas for web site development technologies have been defined. The creation of a quality web site is a complex and complicated process, but by observing some guidelines and recommendations in the work process can help to select the tools and the technologies in its design and development.

Withdrawal: Selection of a Scale Resolving Simulation Technique for Flow Field Analysis of a High Speed Air Intake

2020 ◽  
Author(s):  
Bilal Mufti ◽  
Tauha Irfan ◽  
Zakria Toor ◽  
Jehanzeb Masud
Keyword(s):  
Flow Field ◽  
High Speed ◽  
Simulation Technique ◽  
Field Analysis ◽  
Air Intake ◽  
Flow Field Analysis ◽  
Selection Of

Phytocenotic selection of perennial grasses as a factor of increasing the productivity of mixed agrophytocenoses

2020 ◽  
Author(s):  
V.N. Zolotarev ◽  
◽  
I.S. Ivanov ◽  
O.N. Lyubtseva
Keyword(s):  
Perennial Grasses ◽  
New Varieties ◽  
The Creation ◽  
High Yields ◽  
Selection Of

Based on the analysis of data available in the literature and our own experimental material on phytocenotic selection of the stony stalk (Bromopsis inermis Holub.) the important role of competition between plants in the field for the creation of new varieties of perennial grasses that provide high yields of feed polyvid agrophytocenoses is shown.

Selection of the Optimal Type of Bored-Injection Piles Strengthening of Weak Bases of High-Speed Railway Lines

2019 ◽  
pp. 40-44
Author(s):  
N.S. SOKOLOV ◽  
◽  
S.S. VIKTOROVA ◽  
I.P. FEDOSEEVA ◽  
G.M. SMIRNOVA ◽  
...  
Keyword(s):  
High Speed ◽  
High Speed Railway ◽  
Weak Bases ◽  
Selection Of ◽  
Optimal Type
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