Irina Yatskiv

• Dr.Sc.ing
• vice-rector for research and development at Transport and Telecommunication Institute

This book reports on innovative research and developments in the broad field of transportation. It covers innovative solutions relating to intelligent vehicles and infrastructure, energy and combustion management, vehicle dynamics and engineering. It also reports on advances in railway transport, air transportation, as well as transportation safety...

Globally, over a billion people live with disabilities, facing significant challenges in accessing public transport, which impacts their autonomy, social participation, and economic status. Current research indicates that common problems include inadequate service in terms of destination, timing, and travel duration, as well as physical barriers at...

This article points out some of the forces acting on the components of a hydraulic system. These forces can lead to changes in the spectrum of pressure pulsations under certain conditions. These forces can originate from outside the hydraulic valve and can be the result of vibrations in the machine frame or the movement of the machine over uneven g...

Background: As road transport companies increasingly integrate electric trucks (eTrucks) into urban fleets, evaluating their performance in real-world conditions is essential for effective fleet management and infrastructure planning. Methods: This study introduces TraPodSim, a simulation system designed to assess the key performance indicators (KP...

In the coming years, mobility initiatives should focus on sustainability, safety, and social equity. This can be achieved by introducing innovative transportation methods, implementing novel approaches for end-users, and optimizing the utilization of traditional modes of transport. To achieve this goal, it is essential to utilize pervasive sensing...

In the evolving domain of urban mobility systems, the integration of technology with user-centric strategies is pivotal. This research stands on the foundational concept of Mobility-as-a-Service, a user-centric intelligent mobility management distribution system that seeks to prioritize human needs over mere technological infrastructure. The study...

Aircraft maintenance is considered as one of the major expenditures of aircraft operating costs. Notwithstanding that the new aircrafts, engines, and aircraft hard time parts became more durable and main-tainable, the maintenance cost is still too high as against other costs like fuel and operational crews. Moreover , aircraft maintenance should be...

Decision intelligence is a wide-range term covering a broad latitude of decision-making techniques, uniting traditional and modern disciplines for the development and process of decision models. It transforms the uncertainty of multiple travel choices into the opportunity to provide safe and optimal travel options. Developing a user-oriented trip p...

The development of the latest technologies shapes the values, qualities and mindset of every logistics specialist in a transport company. In order to remain competitive in the labor market, logistics specialists must constantly acquire new technological skills. The existing knowledge of the logistics specialist helps to solve the problems that aris...

This book reports on innovative research and developments in the broad field of transportation. It covers solutions relating to intelligent vehicles and infrastructure, energy and combustion management, vehicle dynamics and engineering, as well as research on railway transport, aerospace technologies, logistics and security. Contributions are based...

Many shipping companies tackle the challenge of potentially replacing conventional trucks with electric ones in economically developed countries. The aim of this work is to describe the principle of scaling models for analysing the operation of a fleet of vehicles, when the decision to use a particular type of model is made considering the accuracy...

The paper is based on the research project ePIcenter ( www.ePIcenterproject.eu ) supported by the EU HORIZON 2020 Programme. ePIcenter connects thirty-six partners: port authorities, logistic service providers, manufacturers, academic institutions, and technology partners. The main goal is to develop and test AI driven logistic software solutions,...

In the research, the aspects of decision-making according to the airport activities were considered. The decision about airport planning and management should be comprehensive and operative and of course, the assessment of alternative decisions is necessary. The purpose of this research is to highlight the role of simulation modelling at the stage...

The pandemic has significantly impacted the transport sector, highlighting several key vulnerabilities of existing transport systems. Otherwise, Covid-19 allowed shaping more sustainable, resilient and human-centric urban mobility. The concept of the first- and last-mile has existed since the development of mass transit services that are only organ...

The European Commission commits to make mobility fair and equal for all – for instance, by making the new mobility affordable and accessible in all regions and for all passengers. One of the key goals is building a sustainable ecosystem where companies can develop innovative services through sharing, re-using and trading transport data assets. More...

Public transport is an inalienable part of the transportation system for any modern urban and suburban environment. It is also an important part of many existing plans aiming at improving the social equality in the modern society, as well as attaining the national and worldwide goals on transition to sustainable development and living; as a result,...

In today’s daily traveller world, not only the time and money became important, but climate change and pandemic raised the importance of safety and sustainability of future trip plans. In order to provide such a wide coverage for a variety of important information, a sustainable trip planner needs to receive a lot of data from a variety of differen...

Trip planner’s solutions main goal is to provide travelers with the multi-modal trip plan, time estimation, routes choice options and some advisory suggestions. Trip planner solutions operate mainly with publicly open data sources, such as public transportation schedules and routes. Research question: How to identify what other real-time informatio...

Sustainable urban mobility remains an emerging research topic during last decades. In recent years, the smart card data collection systems have become widespread and many studies have been focused on usage of anonymized data from these systems for better understanding of mobility patterns of Public Transport (PT) passengers. Data-driven mobility pa...

This book reports on cutting-edge theories and methods for analyzing complex systems, such as transportation and communication networks and discusses multi-disciplinary approaches to dependability problems encountered when dealing with complex systems in practice. The book presents the most noteworthy methods and results discussed at the Internatio...

This book offers a timely snapshot of research and developments in the area of air traffic engineering and management. It covers mathematical, modeling, reliability and optimization methods applied for improving different stages of flight operations, including both aerodrome and terminal airspace operations. It analyses and highlights important leg...

The objective of this paper is to identify relevance of the existing educational programs to the skills required on job, as perceived by the stakeholders involved, such as policy makers, transport operators and service providers, academia and research sector. The research was conducted based on a questionnaire survey retrieving the knowledge gained...

The primary contribution of this research is the theoretical development of a decision-support framework that identifies the tools and approaches that decision-makers could/should use to create policies and programs that transition society towards sustainability. The framework is then used to consider how Riga municipality might move the city’s tra...

Due to the constant growth of traffic between EU countries it is necessary to improve the interconnectivity between states, remove bottlenecks, and also to strengthen the robustness of transport infrastructure and the resilience of the overall network. The nodes such as the bus and rail station connecting regional and urban transport reflect the de...

This book gathers papers presented at the 11th international scientific conference "Transbaltica: Transportation Science and Technology", held on May 2-3, 2019 at Vilnius Gediminas Technical University, Lithuania. It covers cutting-edge issues concerning research and development of modern transport systems. The chapters, written by an international...

This book reports on cutting-edge theories and methods for analyzing complex systems, such as transportation and communication networks and discusses multi-disciplinary approaches to dependability problems encountered when dealing with complex systems in practice. The book presents the most noteworthy methods and results discussed at the Internatio...

A simple approach to the estimation of finite continuous-time Markov chain’s parameters is suggested. It is supposed that the trajectory of a considered Markov chain is fully observed, where each observation is about one jump of the chain. The observations are disjoint on k sub-samples, with respect to initial state of the chain. This allows to sim...

The present paper aims at measuring the satisfaction of travellers and stakeholders on perceived quality of service provided at the Latvian interchange “Riga International Coach Terminal” and understand whether there are any gaps between the two groups of involved parties, based on their perceptions and expectations. To this end, a travellers’ atti...

This book reports on cutting-edge theories and methods for analyzing complex systems, such as transportation and communication networks and discusses multi-disciplinary approaches to dependability problems encountered when dealing with complex systems in practice. The book presents the most noteworthy methods and results discussed at the Internatio...

The design of an optimal interchange depends on the local environment and individual preferences of users on modal choices. Various issues in quality are important for good interchange management and operation, and priorities may significantly differ among different interchanges. This paper aims to investigate and assess the performance level of fo...

The presentation demonstrated during the Winter Simulation Conference 2018

The paper is devoted to the problem of multidimensional data visualization, when an overflow of the image with graphic objects makes it difficult to understand the trends and patterns existing in the data. One of the emerging problems is the visual clutter problem and the aim of the paper is to analyse the criteria which can quantitatively assess t...

Through the European Strategy for low-emission MOBILITY of 2016, the European Commission is working to strengthen the economy by promoting sustainable urban mobility and increased use of clean and energy efficient vehicles and looking into how to accelerate this process. Cities are crucial for the delivery of this strategy, and electrification of b...

Transport services usability refers to the conditions of the infrastructure: reliability, safety, comfort and ease of access to various modes, travel time, and affordability. However, the transport services market does not distribute equitably in urban and rural areas. The scope of research is to analyze equity in user satisfaction in two transport...

This paper investigates the accessibility level of the International Coach Terminal in Riga, Latvia, determining crucial parameters, such as needs, elements and policies that can reform existing transportation hubs into fully accessible ones for all citizens. In order to receive users’ feedback on the existing conditions of the terminal and gather...

The modern data collection and analysis methods enhance reasonable and effective data-driven decision making in transport planning and have significantly expanded the scope of potential data applications. But if the goal is to use data in transport models for evaluating and predicting, the quality of data becomes crucial.

Many local public transport authorities and operators are in need of replacing ageing bus fleet with cleaner and more sustainable vehicles in order to meet standards, increase efficiency and reduce transport related emissions. There is a wide choice of technologies for urban bus operators in the market including electric buses but at the same time...

This paper focuses on active travel accessibility and the required actions to achieve a satisfying level of non-motorized access to urban interchanges. To this end, a systematic literature review was conducted, related to active travel policy measures and actions, as well as to measures aiming at the promotion of walking and cycling and the improve...

This paper describes the design and application of a model simulating the passenger flows on the high-speed rail line Rail Baltica. The proposed model allows one to define passenger flow service indicators, according to data on the behavior of potential passengers that take the train in different localities along Rail Baltica. If corresponding base...

The goal of the RelStat-2018 conference is to provide an international forum for scientists and professionals in academia, industry, and government to address recent research results and to present and discuss their ideas, theories, technologies, systems, tools, applications, work in progress and experiences on all theoretical and practical issues...

The paper advances the results of the on-going work conducted within the frame of the European Twinning project ALLIANCE. In the effort to assess educational needs of different stakeholder groups involved in the domain, this paper’s main interest is to study knowledge and importance of governance issues and smart solutions, which enable smooth and...

The present paper aims at analysing the concept of "urban interchanges" as a solution towards seamless transportation and sustainable mobility. Based on an extensive review of policies, initiatives and data analysis coming from interviews and meetings with stakeholders, a coherent interchange design typology was formulated that links seamless trans...

This paper introduces a decision tree approach, which can be used for the assessment of the design, operation and services provided at urban transport interchanges. Realizing a customer satisfaction survey, feedback was received from 239 users of t he Riga International Coach Terminal on crucial attributes, including: travel information, wayfinding...

This introductory paper gives the readers a brief description of the scope and contents of this Special Issue that consists of papers devoted to Sustainable Transport Interchanges and intermodal networks. The issue depicts the results of the EU project ALLIANCE, which addresses the topic of intermodal interconnections and presents the results of th...

Worldwide the number of people killed in road traffic accidents is estimated at 1.2 million a year. Although, road traffic injuries have been a leading cause of mortality for many years, most traffic crashes are both predictable and preventable. There is considerable evidence on interventions that are effective at making roads safer. Countries that...

This paper aims at identifying the performance level of Riga’s International Coach Terminal, by assessing its design and operation. Based on an extended state-of-the-art review of best practices, a list of representative indicators, grouped into eight groups, were used and evaluated by terminal’s users. These groups deal with mobility provision, wa...

The target of research is the investigation of an aspect of public transport service quality – namely, reliability from passenger’s viewpoint. The paper presents the reliability assessment methodology with respect to the Riga Public Transport System (PTS) services by using microscopic traffic flow modelling and constructing and developing the integ...

In this volume of “Lecture Notes in Networks and Systems” we are pleased to present proceedings of the 17th International Multidisciplinary Conference on Reliability and Statistics in Transportation and Communication (RelStat-2017) which took place in Riga in Latvia from October 18 to October 21, 2017. It was an event in a series organized annually...

Accessibility can be defined as the facility that helps people to reach a location to perform an activity. The research presents an overview of the case study: the accessibility analysis of the Riga public transport system. The transport system of Riga is presented and highlighted by the public transport services; the problems of public transport s...

This paper presents the Riga International Coach Terminal safety and security management system. Authors analyse European documents and tendency to ensure adequate security in the operation of Passenger Terminal and present RICT security risk-based decision-making approach. It is based on the security organization setup, which includes interfaces w...

The knowledge sharing among researchers, decision makers and practitioners becomes necessary for understanding new transportation trends and incorporating innovative transportation strategies in urban planning according to the economic competitiveness and business needs. The paper presents the tools and activities used in the frame of the “Enhancin...

The research suggests the concept of more public transport-oriented cities that accessible for transit passengers and considers the role of Riga public transport system in determining the level of accessibility for different spatial aspects, which in turn facilitates the creation of economies of scale, agglomeration effects and networking advantage...

The goal of the following paper is to make a review of existing intelligent transport solutions in Latvia. The results of the review were part of the RITS-NET project, implemented in frame of INTERREG IVC programme by consortium of partners from 9 EU countries, including Latvia. The project aims at enhancing regional sustainable transport policies...

The research interest in multi-modal passenger transportation planning is growing and dealing with transport infrastructure projects a big number of different challenges have to be considered. Urban transport planning includes scientific and technical knowledge to actions in urban space. In recent years a lot of smart technologies have been promote...

Integrating the most appropriate special transportation service for people with movement disorders model may result in great economy efficiency and social benefit balance. However, most existing researches are based on improving the accessibility of public transport services or development of routing and scheduling under stochastic input data. The...

In this book, the abstracts of the 17th International Multidisciplinary Conference on Reliability and Statistics in Transportation and Communication (RelStat-2017), which took place in Riga in Latvia from October 18 to October 21, 2017 were included. This event belongs to a conference series started in 2001 and organized annually by the Transport a...

The study represents a contribution to the work which examines gender equality in the Science, Technology, Engineering, Mathematics (STEM) sphere in EU and in Latvia in particular and gives the recommendations on how to change gender quality situation among researchers and professionals in STEM. The research was conducted based on a questionnaire s...

We are greatly pleased that popularity of the International Scientific Conference TRANSBALTICA is increasing and participant geography is constantly expanding. Since 1999 the Conference has grown into an event with 106 submitted and accepted papers for publication. Latest research findings are presented by scientists from 20 countries which nearly...

The paper represents Transport and Telecommunication Institute research programme for period of time 2016-2020. Developed research programme should insure sustainable development of TTI as research institution and should raise research capabilities of the organization by planning and further implementation of the collaboration activities with natio...

Description of the method for constructing the welfare index for EU countries in 1995-2005 years based on official statistical data.

The Proceedings of the 16th International Scientific Conference Reliability and Statistics in Transportation and Communication (RelStat-2016) contain selected papers from sections: 1) Transport and Logistics 2) Reliability and Risk Management; 3) Applications of Statistical Methods to Transport and Logistics; 4) Sustainable Transport Interchanges;...

The economic, technological and social changes in urban transportation have resulted in important changes in urban passenger and freight movements. The organization of a training and educational transportation program that considers these changes and involves researchers, decision makers and practitioners becomes necessary for understanding new tra...

Economic and social factors, including existing trends in urban population and employment growth combined with urbanization, have led to enhanced consumption and thus, increasing freight flows in the cities. Mitigation of transport impacts has led to plans towards a more sustainable urban environment. However, managerial and regulatory barriers res...

The paper demonstrates the possibility of using simulation modelling for improving the processes of managing the development of the terminal at a strategic level, taking into account, first of all, security and safety aspects of quality of services. The described in the paper developed simulation model based on the AnyLogic software could be treate...

The concept of safety and security plays an important role in the European transport policy and significant aspect of the service quality provided to passengers. Because of the concentration of vehicles and passengers’ accumulation on passenger terminals, the problem of increasing the level of safety and security in terminal becomes also more signi...

The paper discusses the contemporary approach to structure of Data Science understanding in the sense of professional requirements, skills and competences for Data Science professionals. The roles of such fields as statistics, data mining, and predictive analytics are described as well as the importance of Machine Learning and Software Engineering....

From Part I of the book, it will be obvious that public transport plays an essential role in providing mobility to people, especially in dense urban areas. The social welfare generated by good public transport comes at a price, however. Almost all forms require large investments into infrastructure, vehicles and operation. With limited finance, ide...

Abstracts of the 15th International Conference RELIABILITY and STATISTICS in TRANSPORTATION and COMMUNICATION (RelStat’15), 21–24 October 2015, Riga, Latvia.

The concept of information mobility and its application spheres have been overviewed in the article. The main task in the way of infomobility implementation is to create and manage the information systems that facilitate the use of the transport system by its potential users. The information systems for public transport in Latvia have been analysed...

Equitable access to efficient economic infrastructure and effective public services is essential to achieving the future economic growth. Insufficient transport infrastructure and long border crossing procedures limiting international accessibility for goods and passengers are the biggest present problems in the East–West transport corridor. The jo...

The problem of estimating the quality of public transport service is multidimensional if consider it in terms of data and one of the approaches to assess it is aggregating the set of indicators into a single index or composite indicator. The key task in constructing above mention index is estimation of weights coefficients for quality indicators. T...

A systematic approach to urban transport system planning and managing means the inclusion of a systematic monitoring system to collect the necessary data and periodically updating the DSS databases, as well as updating of models in their repositories. This should be supported by introduction of new data and information without changing and deleting...

The goal of current paper is to present the results of development of Intelligent Transportation Systems (ITS) implementation impact evaluation methodology, which is based on applying traffic flow simulation approach. The proposed methodology allows to solve vivid problem of making more reliable decisions on introducing ITS solutions into transport...

The article is focused on the problem of increasing the awareness of infomobility services and public transport attractiveness through the application of identified best practices and other recommendations. The problem of searching for the good practices and then selection of the best practices should be performed taking into account the variety of...

The study looks at compliance and enforcement of safety and security regulations of international road freight transport in the Baltic Sea Region. The first survey was conducted in autumn 2009. The second follow-up survey was organized in spring 2011 and based on interviews of two respondent groups: Authorities and Road transport industry associati...

This study is produced in the framework of the project, which aims to develop practical solutions to make international road freight transport safer, more predictable and affordable in the Baltic Sea Region. The study looks at the historical retrospective of the Latvian road transport inspection service development and provides a review of traffic...

Considering sustainable development of cities implies investigating cities in a holistic way taking into account many interrelations between various urban or environmental issues. 3D city models are increasingly used in different cities and countries for an intended wide range of applications beyond mere visualization. Could these 3D City models be...

The development of the Public Transport (PT) services in the last decade is characterized by wide implementation of various information systems and technologies, which cover different transport services, such as traffic planning, traffic network monitoring, management of operation of PT fleets, providing information to the passengers, ticketing pay...

A transport planning and transport decision at all levels requires understanding of actual conditions with traffic flows. This involves the details of traffic flows, which usually consist of vehicle types and speeds, knowledge of trip length and trip purpose, trip frequency and origin/destination for trips, etc. The first group of data dealing with...

A considered problem was arisen as a result of collaboration with Riga Coach Terminal Authorities. Recent studies of the role of buses and coaches seem to confirm the already excellent safety, environmental and social record of bus and coach transport. In Latvia this mode of transport is in competition with railway (and also private cars) that’s wh...

Consideration of the Aspects of the Transportation Systems Microscopic Model Application as Part of a Decision Support System The article presents the experience in using decision support system (DSS) when managing urban transport system (UTS) and a possibility of using microscopic modelling as an integral part of the decision-support system (DSS)...

By reading classical literature devoted to the simulation theory it could be found that one of the greatest possibilities of simulation is the ability to present processes inside the system by animation. This gives to the simulation model additional value during presentation of simulation results for the public and authorities who are not familiar...

Urban Public Transport System's Reliability Estimation Using Microscopic Simulation In the article the procedure of the reliability measures estimation for one route of the public transport network on the basis of a traffic flow modelling is suggested. A definition of UPTS reliability is based on the analysis of the Travel Time Reliability, Arrival...

A considered problem was arisen as a result of collaboration with Riga Coach Terminal. Recent studies of the role of buses and coaches seem to confirm the already excellent safety, environmental and social record of bus and coach transport. In Latvia this mode of transport is in competition with railway (and also private cars) that's why the qualit...

The quality of such a complicated system as the urban public transport one is characterized by a large number of parameters; consequently, to carry out analysis and draw a comparison, scalar composite indicator must be used. The authors investigate a possibility of construction of urban public transport system quality indicator (UPTQI) provided mis...

Regression for polytomous data and ordinal logit model have been used for estimation the overall service quality under the influence of partial quality attributes. The numerical examples were done on the basis of results of questionnaire of transport experts about quality of service in Riga Coach Terminal. Short description of each method of model...