Irina Yatskiv

Urban Public Transport System's Reliability Estimation Using Microscopic Simulation

Urban Public Transport Systems 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 Time Reliability and Probability of arriving to the stops with delay no more than m minutes. The approach is applied to the real task of the reliability estimation for Riga city public transport route. The microscopic model of transport network fragment is used for it. Pilsetas sabiedriskã transporta sistemas uzticamĩbas novertešana, pielietojot mikroskopisku imitãciju Rakstã autori piedãvã uzticamĩbas pasãkumu novertešanas procedũru sabiedriskã transporta tĩkla vienam maršrutam, pamatojoties uz satiksmes plũsmas modelešanu. UPTS uzticamĩbas definĩcija ir balstĩta uz Travel Time Reliability /ceļošanas laika uzticamĩba/, Arrival Time Reliability /ierašanãs laika uzticamĩba/ un Probability of Arriving to the Stops /ierašanãs pieturvietãs varbũtĩba/ ar nokavešanos ne vairãk kã m minũtes analĩzi. Pieeja tiek pielietota reãlajam uzticamĩbas novertešanas uzdevumam Rĩgas pilsetas sabiedriskã transporta maršrutam. Tam tiek lietots transporta tĩkla fragmenta mikroskopiskais modelis.

Coach terminal as important element of transport infrastructure

Abstract The determination of the coach terminal as passenger logistics hub is described. The factors responsible for successful functioning of this hub are discussed. The location of the coach terminal is one of the important factors. The present coach terminal is located in the heart of the city where land availability is critical. The simulation model of the terminal was developed to complement the design and construction of a new one. The used simulation package VISSIM has visual reference to assist in explaining the complexity of transport nodes job and analysis of possible congestions. During the development of the modelling the critical bottlenecks are identified and decisions are taken to reduce the risk of their occurrence, the solution being immediately incorporated into the final design of the coach terminal under development.

Investigation Of Riga Transport Node Capacity On The Basis Of Microscopic Simulation

The aim of this paper is to describe the example of usage simulation modelling approach for analysing the capacity of transport node in Riga, the capital of Latvia. At first, the simulation model for this node using package VISSIM was constructed. This model was based on the real traffic measurements in this area. Further, the experiments with the model were undertaken on the data prognosis of this traffic for 5 years. The load capacity of three junctions according to the ICU classification was investigated.

Benchmarking and Assessment of Good Practices in Public Transport Information Systems

Abstract 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 payment, etc. The article considers the research part of a large EU-funded project POLITE aimed at public transport sector and increasing the awareness of infomobility services and PT attractiveness through the application of identified Good Practices and Best Practices. The objective of this paper is presentation of the methodology of benchmarking and assessment of Good Practices and choice of the best one on the basis of the multi-criteria comparative analysis. For assessment of Good Practices the AHP (Analytic Hierarchy Process) method is applied.

Practical Aspects Of Modelling In The Transport Node Reconstruction In Riga.

The paper describes the questions of decision support system in transport planning. One of the methods used for studying the relationships and underlying the transportation decision-making is transport modelling, which includes traffic modelling on micro and macro levels. The research considers the example of the microsimulation model of Riga complex transport node. At first, the simulation model for this node using package VISSIM was constructed. This model was based on the real traffic measurements in this area. Further, the two sets of experiments with the model were undertaken: 1 with fulfilled reconstruction and 2 – with offered improving of this node. The data prognosis of this traffic for 8 years was used in both experiments.

Consideration of the Aspects of the Transportation Systems Microscopic Model Application as Part of a Decision Support System

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) when managing the urban TS. To illustrate the problem and a possible DSS-based solution, an example of a specific project has been examined, where microscopic modelling was used for the analysis of possible reconstruction of a transport system (TS) fragment in the city of Riga, - which was performed in 2010 in the laboratory of applied software systems of the Transport and Telecommunication Institute (in Riga). The project goal was the consideration of expediency for implementation of a pedestrian area in the street of city centre with the existing street traffic. The article formulates some problems that occurred in the process of development and application of simulation model for analysing various scenarios; some possible alternatives of their solution are suggested. An alternative of possible DSS architecture for managing TS in Riga is suggested; some requirements to the data handling and organization in the system are examined. Special attention has been paid to the problem of synchronizing the data handling of macroscopic and microscopic models of urban TS. The article formulates the requirements to organization of data transmission interface between macroscopic and microscopic data. The suggested DSS concept can be used when solving various problems of transportation planning. Daži aspekti par transportešanas sistemu mikroskopiskã modeļa pielietošanu kã daļu no lemumu atbalsta sistemas Rakstã tiek parãdĩta pieredze lemumu atbalsta sistemas (angl. decision support system (DSS)) lietošanã pie pilsetas transporta sistemas (angl. urban transport system (UTS)) vadĩšanas un iespeja lietot mikroskopisko modelešanu kã integrãlo daļu no DSS, vadot pilsetas transporta sistemu. Lai ilustretu problemu un iespejamo DSS-balstĩtu risinãjumu, ĩpaša projekta piemers tiek izskatĩts, kur mikroskopiskã modelešana tika lietota Rĩgas pilsetas transporta sistemas fragmenta iespejamãs rekonstrukcijas analĩzei, kas tika veikta 2010. gadã pielietojamãs programmatũras sistemu laboratorijã Transporta un sakaru institũtã Rĩgã. Projekta merķis bija lietderĩbas apsveršana, lai ieviestu gãjeju zonu pilsetas centra ielã ar esošo ielu satiksmi. Dotajã rakstã tiek piedãvãta alternatĩva iespejamai DSS arhitektũrai, lai vadĩtu transporta sistemu Rĩgã., kã arĩ tiek izskatĩtas dažas prasĩbas sistemas datu apstrãde, tãs vadĩšanã un uzturešanã. Ipaša uzmanĩba tika veltĩta pilsetas transporta sistemas mikroskopisku un makroskopisku modeļu datu apstrãdes sinhronizãcijai. Rakstã tiek formuletas prasĩbas datu transmisijas interfeisa starp makroskopiskiem un mikroskopiskiem datiem organizešanai. Piedãvãtais DSS koncepts var tikt lietots, risinot dažãdas transportešanas plãnošanas problemas.

Building on European scientific excellence to develop an educational program on intermodal connections for Latvia and the region

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 restrict the incorporation of technological instruments and solutions to the sustainable dimension of decision-making and planning. This paper has sought to bridge this gap by organizing an educational and training program, which involves the participation of todays and tomorrow’s researchers, decision-makers and practitioners. Towards this direction, a methodology is developed that identifies existing gaps between the transport industry and the existing research, education and training programs and converts identified requirements and gaps into training courses. The paper addresses the context of intermodal interconnections for the case of Latvia and the region for stimulating and strengthening its scientific and technological capacity by providing knowledge in the field of smart interconnecting sustainable transport networks. The 2-level gap analysis that was developed and implemented with respect to the thematic areas of (1) ‘Governance and policy development’, (2) ‘Smart solutions’, and (3) ‘Decision-making’, and the validation process that followed, has revealed several requirements that exist currently for passenger and freight interchanges and educational programs for Latvia and the region. Based on the identified educational requirements for Latvia and the region, 20 educational areas were created that resulted in 12 courses for passenger and freight transport interchanges that are going to be used for training and education in Latvia.

Analysis of Different Aspects of Infomobility for Public Transport in 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 on the information services offered. Based on the received results of the development, the recommendations of the infomobility service level improvement in Latvia have been formulated.

Data Actualization Using Regression Models in Decision Support System for Urban Transport Planning

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 old. The authors proposed the application of regression analysis for data actualisation and new obtaining, and considered several task settings for realization of such approach. The proposed methodology focuses on the issues of data updating and preparation for modelling, consideration of model preparation and simulation scenarios including the analysis of the influence of the new solution implementation on the neighbouring fragments of the network. The approach has been approved using the simulation model for a fragment of Riga City. The offered procedures can be used in the frame of model-driven DSS and give the possibility to fulfill the process of the model actualisation faster and less expensive without loss of accuracy.

Quality Management of the Passenger Terminal Services on the Base of Information System

Integration of Latvia in the Common European Market and its joining the EU has highlighted new demands to passengers’ transportation – high mobility, inter-modality, comfort observing of passengers’ rights as well as new requirements to the interaction of transport and environment. It is impossible to exercise complete account of all these requirements without a systematic approach and applying the modern instruments to the formation and management of the passengers’ services market.