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Transport Problems

Silesian University of Technology

Subject: Economics , Transportation , Transportation Science & Technology

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ISSN: 1896-0596
eISSN: 2300-861X

DESCRIPTION

FEATURED ARTICLES

SIMULATION OF THE ROUTE NETWORK AND FERRY TRAFFIC INTENSITY BASED ON THE PROCESS OF DISCRETIZATION AND CIRCOS PLOT INTENSITY DIAGRAM
DEVELOPMENT AND IMPLEMENTATION OF RETRO-REFLECTIVE ELEMENTS FOR AUTOMATIC ACCESSORIES AND PLACES OF PLANNED POINTS
ADAPTATION OF THE SERVQUAL METHOD FOR TESTING THE QUALITY OF PASSENGER AIR SERVICES
A Study of the Dynamic Parameters Influence over the Behavior of the Two-Section Articulated Vehicle during the Lane Change Manoeuvre

VOLUME 10 , ISSUE 2 (June 2015) - List of articles

Railway noise reduction by the application of CHFC material on the rail

Brigita ALTENBAHER/ Darja GOLTNIK/ Bojan ROSI

Traffic is the most widespread source of environmental noise. Railway noise has become increasingly common in urban areas in the past few decades. Therefore environmental requirements for railway operations regarding noise are becoming very strict and will become even tighter in future. In the present paper we present actual track-based field test performed on Slovenian Railways. The significant noise reduction (up to 30dBA) was achieved by the application of CHFC material on the rail using CL-E(..)

DOI: 10.21307/tp-2015-015

U.S. intra-industry trade in air transport services: measurement and results

Martina BLAŠKOVÁ/ Filip ŠKULTÉTY

The paper deals with the measurement of intra-industry trade (IIT) in air transport services and it´s components (passenger and air cargo services) among the United States of America and 31 chosen countries in time period 2000 - 2011. For the purpose of analysis, we used traditional and alternative methods of IIT measurements. Results of the analysis confirm the existence of IIT in air transport services and it´s components (passenger and air cargo services between The United States of America a(..)

DOI: 10.21307/tp-2015-016

Travel demand management in the context of promoting bike trips, an overview of solutions implemented in Cracow

Katarzyna NOSAL

Car traffic in cities causes a decrease in travel speed, irregularity of public transport operation and, as a consequence for travellers, significant time losses. Because of congestion the accessibility to the destination points, especially those that are located in the city centre, is threatened. Other difficulties concern: road safety, increasing air pollution, traffic noise and global warming. Construction of new roads and transport facilities requires large financial resources and covers lar(..)

DOI: 10.21307/tp-2015-017

An application of the graph theory which examines the metro networks

Svetla STOILOVA/ Veselin STOEV

The graph theory gives a mathematical representation of transport networks and allows us to study their characteristics effectively. A research of the structure of metro system has been conducted in the study by using the graph theory. The study includes subway systems of 22 European capitals. New indicators have been defined in the research such as a degree of routing, a connectivity of the route, average length per link (which takes into account the number of routes), intensity of the route, d(..)

DOI: 10.21307/tp-2015-018

Economic effects of time loss in passenger transport – evidence from selected polish cities

Agnieszka WAŻNA

Time is a necessary factor in processes of transportation. The economic value of travel time is the opportunity cost of the time spent on journey, so the reduction of travel time becomes the main goal of transport network users. Travel time losses in passenger transport are frequently observed in crowded cities, which are facing different types of traffic congestion. The article shows the analysis of the complicated causes of travel time loss, the need of implementing some simplifications during(..)

DOI: 10.21307/tp-2015-019

Application of the AHP method to analyze the significance of the factors affecting road traffic safety

Justyna SORDYL

Over the past twenty years, the number of vehicles registered in Poland has grown rapidly. At the same time, a relatively small increase in the length of the road network has been observed. As a result of the limited capacity of available infrastructure, it leads to significant congestion and to increase of the probability of road accidents. The overall level of road safety depends on many factors - the behavior of road users, infrastructure solutions and the development of automotive technology(..)

DOI: 10.21307/tp-2015-020

Transportation network reduction

Stanislav PALÚCH/ Štefan PEŠKO/ Tomáš MAJER/ Jan ČERNÝ

Network reduction problem is formulated as follows: We are given a transportation network T, a set of important origin – destination relations R and a number q greater than 1. The goal is to find a subnetwork S of the given network T such that all shortest paths between all origin – destination pairs from R using only subnetwork S are not longer than q-multiple of the corresponding distance in original network T. A mathematical model and an exact algorithm of just mentioned task is presented.

DOI: 10.21307/tp-2015-021

Research to longevity brake lines on the exploitations

Sergey TUJRIN/ Grigory BOYKO/ Alexander REVIN/ Vitaliy FEDOTOV

Brake lines are tested for strength and durability. However, tests of strength are short-term, but tests of durability are durable, since their aim is to assess the effectiveness of the brake linings during operation. Therefore, reduction of time evaluating the durability of brake linings exploitation is urgent. The article describes the results of the research on the longevity of the brake linings of different types of vehicles based on their controllable operation and the method of accelerated(..)

DOI: 10.21307/tp-2015-022

Impact of the economic crisis on the roadworthiness of vehicles in the Republic of Croatia

Stipe BILIĆ/ Ana-Mari JANKOVIĆ/ Martina LJUBIĆ HINIĆ

The impact of the economic crisis, i.e. the decrease in purchasing power in the Republic of Croatia, has been reflected negatively on the sales of new road vehicles and the maintenance plan of used road vehicles. A comparison of the results of technical inspections on vehicle roadworthiness has indicated a slight increase in unroadworthy vehicles, with a tendency for this to increase. Unroadworthiness and the average age of vehicles amounting to 12.18 years prompt for thinking about road safety (..)

DOI: 10.21307/tp-2015-023

Outsourcing strategy selection for transportation services based on the Make or Buy decision

Maria CIEŚLA

This paper is related to the practical approach to logistics strategies in enterprises and advanced practical applications. This article presents an analysis and solution to a specific problem, which is the subject of transport in the enterprise. It presents an analysis based on Make-or-Buy decision involving the selection of best internal or external transport service. It will be used for an exemplary production company. This case study presents the basis for the construction of logistics strat(..)

DOI: 10.21307/tp-2015-024

Passenger accumulator fed railcars in regional railway traffic

Radovan DOLEČEK/ Ondřej ČERNÝ/ Ladislav MLYNAŘÍK/ Petr SÝKORA

This paper is focused on contemporary posibilities of replacement diesel-powered railcars by accumulator powered railcars in regional railway traffic. In the first part of the paper, there are described advantages and disadvantages of this replacement. In the second part are presented the simulation counts and the simulation results of the drive of an accumulator powered railcar on the railway line Šumperk - Kouty nad Desnou. At the last part of this paper is shown the experimental accumulator p(..)

DOI: 10.21307/tp-2015-025

Robotic transport complex of automotive vehicles for handling of rock mass at the process of open cast mining

Anatoly KOLGA/ Alexander RAKHMANGULOV/ Nikita OSINTSEV/ Aleksander SŁADKOWSKI/ Ivan STOLPOVSKIKH

The article is concerned with the applicability of the robotic transportation complex of automotive barrows for haulage transportation along various transport routes of mining enterprises. The simultaneous application of robotic transport and telemetry links makes the door-to-door transportation possible, i.e. direct transportation from the starting to the final point avoiding intermediate storage and a considerable part of auxiliary equipment.

DOI: 10.21307/tp-2015-026

Some issues of road emission for passenger cars and light duty vehicles sector in the aspects of environmental protection

Jan FILIPCZYK

The article presents the results of studies and investigations concerning some aspects of exhaust emission and methods of assessment of its influence on the environment. Some issues related to the modelling of emission level and costs of environmental protection have been discussed. The results of investigations concerning vehicle durability have been presented in the context of the need to meet more restrictive emission standards.

DOI: 10.21307/tp-2015-027

Study of the asynchronous traction drive's operating modes by computer simulation. Part 1: Problem formulation and computer model

Pavel KOLPAHCHYAN/ Alexander ZARIFYAN Jr

In this paper, the problems arising from the design of electric locomotives with asynchronous traction drive (with three-phase AC induction motors) are considered as including the debugging of control algorithms. The electrical circuit provides the individual (by axle) control of traction motors. This allows realizing the operational disconnection/connection of one or more axles in the automatic mode, with account of actual load. In perspective, the evaluation of locomotive's energy efficiency a(..)

DOI: 10.21307/tp-2015-028

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