• TRANSPORT. SAFETY AND ECOLOGY. LOGISTICS AND MANAGEMENT

    VEHICLE PRODUCTIVITY IN NEW OPERATED RAIL-SERVICES

    Trans Motauto World, Vol. 3 (2018), Issue 4, pg(s) 185-187

    For newly introduced transport services, there´s not only the transport aspect that matters what the new service will bring to passengers, but also the operating costs are very important. In this area the systematic timetable planning plays an important role. Total costs of the transport system are significantly affected by the fixed costs, deriving from the number of regular deployed vehicles and drivers, related to the overall transport performance and total operational productivity. Advanced timetable engineering means a strong link between timetables, vehicles and infrastructure. The article demonstrates this approach on the example of the introduction of new express trains Praha – Plzeň – Cheb / München in the timetable 2017/18.

  • TRANSPORT. SAFETY AND ECOLOGY. LOGISTICS AND MANAGEMENT

    LINE TRACK CAPACITY – ANALYSIS OF THE IMPLEMENTATION OF THE UIC 406 METHODOLOGY IN ŽSR CONDITIONS

    Trans Motauto World, Vol. 3 (2018), Issue 4, pg(s) 181-184

    A variety of A variety of methodologies are used across Europe for the estimation of railway infrastructure capacity. This paper introduces the basic principles of the analytical methodology (e.g. Slovak railways) and UIC methodology. On the basis of these new approaches, dependencies between occupation time and buffer time is researched. The aim is to compare the needed buffer time and its impact to the line capacity.

  • TRANSPORT. SAFETY AND ECOLOGY. LOGISTICS AND MANAGEMENT

    EXPRESSION OF RISK THROUGH TARIFF POLICY IN RAIL PASSENGER TRANSPORT

    Trans Motauto World, Vol. 3 (2018), Issue 4, pg(s) 173-176

    Risk analysis is a process with a detailed identification of risks, determine their range and examines the interaction of these risks. Each process or human activity are influenced by many risks. As well as in rail transport there are many risks which hare accrue from the operation. Risk is defined as the chance that something will happen what will affect the goals and is measuring by results or estimate. We can also risk defined as the product of the likelihood of an adverse event (phenomenon) and consequences (outcomes). On one side is the risk connected with the hope of achieving a good financial results, but on the other side with the danger of business failure that brings losses. The aim of this paper is the proposal of a tariff taking into account the risk from unoccupied capacity of passenger trains. Pricing of selected risk we will eliminate this adverse event.

  • TRANSPORT. SAFETY AND ECOLOGY. LOGISTICS AND MANAGEMENT

    APPLICATION OF GEOGRAPHICAL INFORMATION SYSTEMS TO EVALUATION A CONCENTRATION OF CHLORINE RELEASED INTO AN ATMOSPHERE IN THE CASE OF ROAD ACCIDENT

    Trans Motauto World, Vol. 3 (2018), Issue 4, pg(s) 169-172

    Modelling propagation of hazardous substances released in road accidents is important issue from the point of view of safety in road transport. The paper presents use of the Geographic Information Systems to analyse the impact of the emissions of hazardous compounds in the built-up area. In the paper dispersion of pollutants released in a road accident, involving a chlorine tanker truck, followed by chlorine spillage has been analysed. It is assumed that the accident took place in a mountainous area on a bypass within a built-up area. Concentrations of pollutant have been calculated in the own program. The calculation of field of wind speed was taking into account the terrain elevation and type of land cover. The package Idrisi Taiga has been applied in the pre-processing stage. It was used to generate a site map with buildings and aerodynamic roughness map. Meteorological conditions were also taken into account: wind speed and direction, temperature, atmospheric pressure and atmospheric stability class. The computer program consist two basic modules: diagnostic model of air velocity field and Lagrangian model of particles, being the original implementation of the Lagrange model of particles. In both models, some elements of mathematical modelling were applied. The models have been successfully validated and verified. The results of the calculations of concentrations of chlorine have been analysed in the Geographic Information System. The following analyses have been made, among others: designation of hazardous zones AEGL 1-3, determination spatial size of built-up areas within the zone, analysis of changes in pollution concentrations over time. The proposed analyses allows to determine areas exposed to deadly and highly dangerous concentration of chlorine.

  • TRANSPORT. SAFETY AND ECOLOGY. LOGISTICS AND MANAGEMENT

    IMPACT OF TECHNICAL VALIDITY MOTORCYCLE FOR ROAD SAFETY IN THE REPUBLIC OF CROATIA

    Trans Motauto World, Vol. 3 (2018), Issue 4, pg(s) 166-168

    The road traffic safety factor is divided into three basic groups: human, vehicle, road (infrastructure). Technically defective, poorly maintained and technologically obsolete vehicles endanger road safety. The number of technically defective vehicles that are involved in traffic accidents, when checks are carried out by officers of traffic police, is 0.2%. Considering that 21.31% of vehicles are found to be defective by periodical technical inspections of vehicles (PTI), it is expected that the number of technically defective vehicles in daily traffic is considerably higher. By analyzing the data collected by PTI and comparing them with the data obtained during the conducted research “Inspection of the technical safety of vehicles involved in road traffic accidents with fatalities” the real state of the technical condition and safety of vehicles on the roads in the Republic of Croatia is presented here. Two-wheel vehicles (mopeds and motorcycles) represent a particularly risky group.

  • TRANSPORT. SAFETY AND ECOLOGY. LOGISTICS AND MANAGEMENT

    THE NUMERICAL INVESTIGATION OF HIGH SPEED TRAIN-TUNNEL INTERACTION AT ENTRANCE AND EXIT

    Trans Motauto World, Vol. 3 (2018), Issue 3, pg(s) 135-137

    In the study, the flow pattern due to the interaction between a high-speed train and the tunnel at the model scale was analyzed. Six different tunnel entry geometries were used variably for a single train speed. The most important issues as a condition of comfort in high speed trains are noise and vibration. In particular, flow-induced noise is triggered by pressure changes in the flow. For each geometry, the pressure changes at the tunnel entrance and at the tunnel exit are plotted with depending on time. As a result, the least amount of pressure change was found in the tunnel entrance model with openings in the side walls.

  • TRANSPORT. SAFETY AND ECOLOGY. LOGISTICS AND MANAGEMENT

    A PORT COMMUNITY SYSTEM OF GEORGIA AND ITS ROLE IN WORLD MARITIME TRANSPORT

    Trans Motauto World, Vol. 3 (2018), Issue 3, pg(s) 131-134

    Ports constitute one of the most important nodes of transport networks, and they represent the border control points and the freight handling points, the administrative service centers, place of the implementation of trade procedures, as well as the link connecting the land and maritime routes. The functioning of the international transport corridor depends to a large extent on the ports and maritime transport efficiency.
    Despite significant investments, the operations of port and ships are mostly non-standard, which hinders the development of the maritime transport sector. However, infrastructure is not the major obstacle to maritime transport development. National regulatory policy should be revised in keeping with the growing popularity of the concept of economic globalization and supply network. It is necessary to reform the relevant roles of the private sector and the State, where the latter is represented by stateowned companies and state monopolies.

  • TRANSPORT. SAFETY AND ECOLOGY. LOGISTICS AND MANAGEMENT

    METHODOLOGY FOR RATING QUALITY STANDARDS IN REGIONAL PASSENGER RAIL TRANSPORT

    Trans Motauto World, Vol. 3 (2018), Issue 3, pg(s) 127-130

    Quality has a fundamental influence to the services in passenger transport. The main objective of transport is to satisfy customers’ (passengers’) requirements on the qualitative, flexible, fast and safe carriage of people and goods. Organisers of transport (public authority), providers of transport services and their customers have a different view on the perception of quality. This fact is influenced by unsystematic assessment to the quality measurement as well as by ignorance of the interaction of the transportation the peoples with the transport system. A basic element of transport service is the movement of the rolling stock with the passenger or goods from the start to end destination. In this point of the technological process of transport, the main bearer of the quality of transport services are the vehicles and the transport infrastructure. From the perspective of the vehicle, its operation-technical and utility properties are very important. From the perspective of transport infrastructure, the operating ratios and conditions are important. Due to the content of the quality concept it is not possible to focus only on the interaction of carriage and transport infrastructure. The paper is focussed on the quality evaluation of performance in regional passenger rail transport in relation to other modes of public transport. Hereby it is necessary to know the perception of quality services as well its value for the client (passenger). Consequently it is needed to set a permanent process of quality evaluation of the provided transport services. The paper is based on the premise that the customer interests present the public ordering body (authority) of the public transportation services.

  • TRANSPORT. SAFETY AND ECOLOGY. LOGISTICS AND MANAGEMENT

    OPERATING LONG DISTANCE RAIL TRANSPORT ON BRATISLAVA – BANSKA BYSTRICA LINE BY PRIVATE RAILWAY UNDERTAKING

    Trans Motauto World, Vol. 3 (2018), Issue 3, pg(s) 123-126

    The competition between operators in the public tender in ordering process of train paths in long-distance rail passenger transport is very significant. The partial liberalisation of the rail market in the European Union was already underway in 2010, when all European railway companies with the necessary licenses gained access to railway infrastructure. One of the current objectives of the common transport policy laid down in The fourth railway package is to open up the market for national rail passenger services in all Member States from 2019.In 2009, the EU Regulation No. 1370/2007 came into force, which sets out the selection procedures for the award of contracts in public rail transport. There are two forms of contracts for transport services in the public interest, either by tendering the competition for traffic performance, or by directly entering the selected railway company. The aim of this article is to analyse steps of the Slovak government in the first public tenders to provide subsidized transport of a selected line and to determine conditions for this tender. This is a significant moment in the railway market in the Slovak Republic, preparing the opening up of the market for domestic long-distance passenger rail transport.