БЕЗОПАСНОСТЬ
The paper is dedicated to the trial application of cognitive approach to solving the task of expanding the volume of knowledge about factors that impact the level of provided traffic safety. The results of solving the task set are considered as the beginning of forming the full spectrum of causes and possible mechanisms of countering each type thereof.
The paper uses a non-legislative interpretation of the term ‘traffic safety’, as traffic without danger to people’s life or health in traffic accidents which is equivalent to ensuring zero mortality. This eliminates the factor of knowledge uncertainties that contribute an element of disorganisation into the practice of ensuring safety in Russia’s roads, ensures completeness of evaluation of the state and parameters of the system depending on internal and external impacts.
Forms of presenting models of technical systems of managements are presented on the example of automobile non-automated and automated car steering systems, which are particularly important for the unmanned types, as well as of systems for organisational management of the activities of responsible decisionmaking officials and of agents subordinated to them. Factors impacting the traffic safety in the aforementioned systems are performance levels of their main functional qualities quantitatively evaluated by using mechanisms of their formation obtained by structural changes of models of the aforementioned systems.
The paper studies a source of new factors unused in the practice of ensuring traffic safety in the segment of taking managerial decisions of all types implemented in the system of ensuring traffic safety. Aspect method of evaluation of their quality was used as an instrument of research, depending on the views, points of view, angles and qualifications of decision makers, as well as on indicators of functional qualities and other specific features of sides and facets of objects under study.
The paper presents results of a desk study of expected pollution of air with NO2, PM10 and PM2,5 by motor transport and heat and power sector enterprises during peak traffic by motor traffic under normally unfavourable weather conditions (on the example of St Petersburg). It is shown that pollution of air with NO2 and PM10 has territorial anomalies. Local excessive concentrations of PM2,5 on road network can exceed the maximum permissible single concentration by a factor of 2 to 4.
ЭКОНОМИКА
The paper considers issues of developing an up-todate system of requirements for economic studies that takes into account provisions of technical regulations used in conducting road activities as well as approaches to studies actually used by design organisations. With a view to improve the processes of carrying out economic studies in designing contruction, reconstruction and major renovations of public motorways, the existing regulatory framework was analysed, recommendations on basic steps in conducting economic studies, and requirements for the volume and structure of data collected are listed.
The paper provides economic evaluation of development and territorial planning of transport infrastructure in urban agglomerations. Main trends in development of urban public and personal transport are noted on the example of the Moscow agglomeration. The role of rail transport in the structure of urban planning is determined on the basis of agglomeration land use patterns. Process of modelling transport infrastructure is analysed taking into account the stages of planning, collection and distribution of journeys, passengers’ subjective preferences, as well as using the gravity model for determination of number of rides. Indicators of intermodal transport mobility of the population are proposed for various types of transport, defined both from the number of journeys and the passenger turnover. Feasibility of applying the cost-benefit analysis method is noted for evaluation of economic efficiency of infrastructural transport projects due to their high social significance and the need to account for a wide spectrum of effects formed. It is concluded that the public rail transport is the most promising both for agglomerations which tend towards super-urbanisation and for the deurbanised territories. The study allowed expanding the existing methodological instruments of evaluating economic efficiency of implementation of infrastructural transport projects by improved approaches to justification of investment, construction and transport activities.
Hybrid business models of digitalisation are relevant at the stage of switching to digital business when in addition to traditional technologies for organisation of operational processes, earlier methods of providing a value proposition to the clients new digital platforms, CRM-systems of client interaction, software instruments for managing autonomous and connected transport on the basis of technical vision and machine learning, etc. appear. The paper proposes a definition of a hybrid model of digitalisation, and justifies economic advantages, as well as risks and threats of additional losses in introducing hybrid digitalisation models. A combined matrix schem of effects of digital transformation projects of the Russian Railways group of companies and the project hybridisation stage is proposed. Using the hierarchy analysis method on a separate project sample basis, the technology of ranking them on multi-criterion principle, accounting for the degree of hybridisation, is shown. Methods of descriptive diagnostics, content analysis, hierarchy analysis and a few others were used. The results would be useful for understanding by company managers of the essence of transitional hybrid models in the framework of implementation of projects and programmes of corporate digitalisation.
IT-ТЕХНОЛОГИИ
The paper is dedicated to the introduction of information and telecommunications systems into processes of improving customs operations and carrying out customs control. Special attention is paid to improving the functioning of customs infrastructure objects in the crossing points on the outer border of the Eurasian Economic Union on the basis of application of artificial intelligence elements in information systems of customs bodies. Setting up intelligent crossing points and organisation of interaction between state control organs within a single digital platform contributes to significant increase of their throughput capacity that should also result in increasing efficiency of operation of transport organisations that carry out international transportation services. The paper considers the main factors related to the process of carrying out customs operations that impact on the speed of vehicles movement across a customs border, and the issues of modelling the throughput capacity of crossing points.
The paper presents data of the integrated analysis of capacities for creating and subsequent operation of digital infrastructure on motorways to provide a wide range of services for various categories of users on a fee-paying and free-of-charge basis.
The paper considers problems and approaches to automation of traffic planning for urban high-speed light-rail transport (taking into account the specific features of high-speed tram functioning). The structure of the Transport Timetable automated system is discussed. It is designed for automating traffic planning, including tasks in building timetables, drafting release orders, drawing up itineraries, group alerting for drivers of events on the line, as well as for maintaining incident database and timekeeping. Introduction of software for high-speed tram traffic planning in St Petersburg for organisation of new high-speed tram operation allowed to increase the automation level and to improve the dispatchers’ working culture by reducing the number of monotonous operations.
The paper outlines the composition of a monitoring system for engineering structures on the first bridge across the river Pur in the Yamalo-Nenets Autonomous Okrug (Purovskii Bridge) which connects the oil and gas fields to the region’s transport corridors. The monitoring system allows registering not only non-normative impacts on bridge structures from vehicles, but also climate impacts. Using the monitoring system allow controlling the technical condition of the Purovskii Bridge, as well as promptly react to registered events of reaching limit values of monitored parameters.
ТРАНСПОРТНАЯ ИНФРАСТРУКТУРА
The authors propose to use a unique technology for positioning of rolling stock on the railway track connected to close integration of running rails and fibre optic cable. The technology involves insignificant change to the rail profile. The paper studies the influence of the location and depth of the hole at the rail’s stress-strain state caused by train movement. An overview of technologies for positioning rolling stock on the railway track is provided, their pros and cons noted. An experiment with changing rail profile to use as a convenient means for attaching the fibre optic cable is described in detail. The use of proposed solutions would permit for practical implementation of a new system of interval control of train movement which the authors designated optical auto-locking with movable block sections. Compared to the traditional ones, the proposed auto-locking allows desisting from using rail circuits, and is self-diagnosing through the length of the track. In addition, every rail fracture (both full and partial) is controlled, which the traditional rail circuit does not permit.
ПЕРЕВОЗКИ И ЛОГИСТИКА
The paper considers approaches to forming methodological support for ensuring efficiency of operation of highly automated vehicles. Criteria for route selection for organisation of regular passenger services using highly automated vehicles are formulated. Functional dependencies that characterise the efficiency and safety of highly automated vehicles functioning processes and the quality of transportation services for the population are developed. Methodological approaches proposed in the paper can be used in evaluation of efficiency of investment into projects for introduction of highly automated vehicles and of operational results of transport organisations.
The paper considers methods of providing priority passage to public transport traffic on the basis of contemporary solutions in Moscow. Schemes of organisation of dedicated lanes at crossing points are described, depending on travel speeds and flow intensity, as well as application of various types of horizontal markings increasing the efficiency of a dedicated lane. An example of a software analysis chart of journey time on a public transport route based on the data collected with assistance of the Glonass satnav system.
КАДРЫ
For implementation of the Concept for Staff Training for Russia’s Transport System, approved by a Russian government decree dated February 6, 2021, № 255-r, analytical data produced on an example of selected samples of programmes for ground, maritime, aviation and railway transportation are presented. Russian Federation’s higher and secondary vocational education institutions providing education in the transport sphere are evaluated, including selectively, on the example of educational institutions under the jurisdiction of Russia’s Transport Ministry and the Federal Transport Agency. Data presented permits to evaluate the equity distribution of bachelor, master and specialist programmes, as well as programmes for training workers and mid-level professionals in the overall structure of training of transport workers. A rating of the most in-demand areas and professions is presented. The paper is based on the results of studies conducted by the directorate for development of vocational training of the Russian University of Transport, and is intended for the administrative and managerial staff responsible for regulating education in higher and secondary vocational institutions, enterprises’ personnel services and HR companies, as well as entrepreneurs, researchers, students and PhD students.
ТРАНСПОРТНОЕ МАШИНОСТРОЕНИЕ
In order to increase the cargo train movement speed, cargo wagons with single welded bogies designed for design speed of 140 km/h. In the process of design, the task was set to create a wagon and a bogie technically compatible with cargo wagons being operated and adapted to the existing technology of driving and formation of cargo trains. One of the important parts of the vehicle is the bogie, on which the wagon’s dynamic properties depend. During designing it is important to ensure strength of the structure, including against rare extreme loads that occur during operation. Proceeding from this task, calculation of frame strength by permissible stresses was conducted by regimes adopted in regulatory documents for cargo wagons. Requirements set out in state standard GOST 332112014 were used for ensuring and evaluating strength of a bogie’s structural elements. The paper presents an analysis of provisions of the current regulatory documents related to the Customs Union technical regulation TR TS 001/2011 which contain the methods for carrying out strength calculations by permitted frame loading of rolling stock bogies. Design modes are compared to requirements of European standards. Results of the study justify an additional calculation regime that is relevant in operation of cargo wagons with welded-construction from of wagon bogie. Design, calculation and evaluation of the construction accounting for the additional regime would permit increasing frame construction reliability in case of a wagon derailing. As part of the work, loading values produced by calculation model were compared to strain measurement results.
The paper presents results of development of cargo tank wagon fittings for petroleum products bottom drainage system and safety inlet valve.
ISSN 2658-3674 (Online)