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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

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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 15 , ISSUE 1 (March 2020) - List of articles

MULTI-CRITERIA EVALUATION OF E-SHOP METHODS OF DELIVERY FROM THE CUSTOMER'S PERSPECTIVE

Radovan MADLEŇÁK/ Lucia MADLEŇÁKOVÁ

This article focuses on the multi-criteria evaluation of various delivery options in the conditions of chosen e-shop, from the customer’s perspective. The evaluations were performed on conditions of the most popular e-shop in Slovakia and the customer segment was represented by a group of people of productive age. For the multicriteria analysis, the TOPSIS method was chosen. We identified four basic distribution options in the selected e-shop and nine evaluation criteria. The results of this res(..)

DOI: 10.21307/tp-2020-001

Published Online: 26-March-2020

ANALYSIS OF THE DYNAMICS OF VEHICLE MOTION IN CASE OF SUDDEN BRAKING CONNECTED WITH DAMAGE OF THE TIRE

Valery KOVALEV/ Igor BLYANKINSHTEIN/ Dmitry MOROZOV/ Andrew KAZANTSEV

One of the urgent problems to be solved in the analysis of road traffic accidents is the calculation of vehicle speed at the time of sudden braking. This makes it possible to determine the dynamics of further movement of the vehicle and to determine the technical ability of the driver to prevent a traffic collision. The article presents a method employed in calculating the speed of the car at the time of sudden braking and determines the dynamics of movement up to its complete standstill. The co(..)

DOI: 10.21307/tp-2020-002

Published Online: 26-March-2020

VERIFICATION OF MOTOR VEHICLE POST ACCIDENT INSURANCE CLAIMS

Piotr ALEKSANDROWICZ

Use of a vehicle involves a risk of collision and, consequently, high costs of post-accident repairs. Therefore, if there is no insurance cover and the repair must be paid by the vehicle owner, some of them choose to file fraudulent insurance claims as the damage can be very difficult to verify. Payments of undue damages pose a major social and economic problem. This article deals with these problems and puts forward a proposition of insurance claim verification by means of a new research method(..)

DOI: 10.21307/tp-2020-003

Published Online: 26-March-2020

MODELING OF THE BURNING PROCESS IN THE PISTON ENGINES WITH VARIOUS CONCEPTS OF THE WORKING PROCESS

Tamaz NATRIASHVILI/ Revaz KAVTARADZE/ Merab GLONTI

In this paper, the results of modeling of the burning process in the piston engines whose working process is realized on the basis of various conceptual approaches are presented: in diesel with direct injection of the fuel; in a gas engine with spark ignition; and in a two-fuel engine (in the gas-diesel), where the mixture of natural gas and air ignites with the help of the fuse dose of the diesel fuel. The models of burning based on the different in-principle approaches are analyzed and used. V(..)

DOI: 10.21307/tp-2020-004

Published Online: 26-March-2020

MATHEMATICAL MODELING OF THE MOTION PARAMETERS OF A DISABLED PERSON IN A BUS

Jumber CHOGOVADZE/ Phridon GOGIASHVILI/ Gocha LEKVEISHVILI/ David KBILASHVILI/ Nodar MARDALEISHVILI

With a view to determining the dynamics and possible trauma sustained by a disabled person in a wheelchair in the passenger compartment of a bus, a physical model has been developed. The system, as the time function, generalized in the coordinates X(t), φ(t), was described by second-order Lagrangian differential equations. The proposed mathematical model allows for determining the motion characteristics of disabled people in a wheelchair in a bus that can cause injuries. This paper presents the (..)

DOI: 10.21307/tp-2020-005

Published Online: 26-March-2020

ENVIRONMENTAL FOOTPRINTS OF CURRENT AND FUTURE ELECTRIC BATTERY CHARGING AND ELECTRIC VEHICLES IN POLAND

Dorota BURCHART-KOROL/ Piotr FOLĘGA

This paper presents the results of environmental footprints of the life cycle of electric passenger cars, with a current and future electric battery charging analysis in Poland. The shares of the sources of electricity generation in the energy systems of Poland in the years 2015–2050 were used to perform the chosen environmental footprints of current and future electric car battery charging. This article discusses the water and carbon footprints of electric passenger cars in Poland. The carbon f(..)

DOI: 10.21307/tp-2020-006

Published Online: 26-March-2020

DEVELOPMENT OF THE RAILWAY POINT ELECTRIC HEATING INTELLECTUAL CONTROL ALGORITHM

Ruslans MUHITOVS/ Mareks MEZITIS/ Ilja KORAGO

The article reviews and describes the problems of the railway point heating conventional control system considering its structure, simple design, disadvantages and nonconformity. As a solution to the described problem, an innovative and advanced point heating control algorithm is proposed based on Mathlab’s Fuzzy Logic Designer module, which will allow control of heating more effectively and intellectually. The tasks for the advanced and intellectual point heating control system were set. The in(..)

DOI: 10.21307/tp-2020-007

Published Online: 26-March-2020

PROBLEMS OF DEVELOPMENT OF AN UNDERGROUND TRANSPORT INFRASTRUCTURE OF CITIES

Oleksandr PSHYNKO/ Anatoliy RADKEVYCH/ Mikolay NETESA/ Andrii NETESA

The goal of this article is to determine rational constructional and technological options for the development of underground space, in particular, the arrangement of underground parking lots under the specific hydrogeological conditions of Dnipro city. In this article, the best practices in the construction of similar facilities in the world are discussed. Arrangements for individual structural elements and structures as a whole were considered. The main resources for their implementation are d(..)

DOI: 10.21307/tp-2020-008

Published Online: 26-March-2020

DEVELOPMENT OF THE MATHEMATICAL MODEL OF FUEL EQUIPMENT AND JUSTIFICATION FOR DIAGNOSING DIESEL ENGINES BY INJECTOR NEEDLE DISPLACEMENT

Igor DANILOV/ Aleksander MARUSIN/ Mikhail MIKHLIK/ Ivan USPENSKY

This article discusses the proposed method for diagnosing diesel fuel equipment. An analysis of available methods for diagnosing fuel equipment has been carried out. The authors describe their method for diagnosing plunger pairs of a highpressure fuel pump according to the parameter of displacement of the injector needle. The design of the diagnostic device for measuring the movement of the injector needle has been developed and patented. The dependence of the maximum displacement of the injecto(..)

DOI: 10.21307/tp-2020-009

Published Online: 26-March-2020

A SOFTWARE MODULE FOR MULTI-CRITERIA SUPPLIERS’ SELECTION WITH RESPECT TO THE SPARE PARTS LOGISTIC

Irina MAKAROVA/ Ksenia SHUBENKOVA/ Polina BUYVOL/ Eduard MUKHAMETDINOV

Reliability of vehicles is characterized not only by the quality of production but also by the quality of subsequent maintenance. In this paper, we consider the possible spare parts logistics risks, as they have a huge influence on vehicles’ maintenance. One of the widespread methods to analyze the reliability of complex systems is Fault Tree Analysis (FTA). To identify and systematize all possible risks in spare parts logistics, we have built the Problem Tree. For managing identified risks, we (..)

DOI: 10.21307/tp-2020-010

Published Online: 26-March-2020

NEW IDEAS FOR INLAND INTERMODAL TRANSPORT

Béla ILLÉS/ Antal VÉHA/ Laszlo VIDA

This article focuses on the competitive disadvantages of existing intermodal rail-road transport compared with road transport. The authors state that the domestic and continental combined freight transport system can be competitive in terms of both time and price with road freight transport. The new container transshipment device contributes to a new terminal structure on the freight rail-road transport market, considering environment protection requirements, and the concept has helped the logis(..)

DOI: 10.21307/tp-2020-011

Published Online: 26-March-2020

AHSS STEEL WELDING WITH MICRO-JET COOLING IN MOBILE PLATFORMS

Tomasz WĘGRZYN/ Bożena SZCZUCKA-LASOTA/ Jan PIWNIK/ Adam JUREK

This paper focuses on the weldability of advanced high-strength steels (AHSS), commonly used by the automotive industry and civil engineering. These steels have found application in the construction of mobile platforms mounted on vehicles. AHSS significantly outperform other materials when it comes to performance flexibility and mass reduction potential. This article verifies whether the application of micro-jet cooling technology during the welding process might help to overcome these issues. T(..)

DOI: 10.21307/tp-2020-012

Published Online: 26-March-2020

EVALUATING THE SAFETY PERFORMANCE OF ROUNDABOUTS

Mo'ath ALSHANNAQ/ Rana IMAM

The use of roundabouts is well recognized for sustaining an efficient and safe intersection. However, the safety results may vary based on the prevailing conditions. Therefore, this study assesses the safety performance of roundabouts in Jordan. This study developed a predictive model by collecting and analyzing all accident records of 12 major urban roundabouts in the country over 3 years. For developing the model, this study employed an accident frequency analysis. The model calculated the rat(..)

DOI: 10.21307/tp-2020-013

Published Online: 26-March-2020

USING A NON-PARAMETRIC TECHNIQUE TO EVALUATE THE EFFICIENCY OF A LOGISTICS COMPANY

Petr PRŮŠA/ Stefan JOVČIĆ/ Josef SAMSON/ Zuzana KOZUBÍKOVÁ/ Aleš KOZUBÍK

Data Envelopment Analysis (DEA) is a relatively new method, a nonparametric technique used nowadays to evaluate the efficiency of the Decision-Making Units. Using this method, the Decision-Making Units can be compared between each other and the most effective ones can be found. Using the DEA method, the performance of a logistic company with twelve warehouses as DMUs is evaluated in this paper. "DEA Excel Solver" user program was used to solve the problem.

DOI: 10.21307/tp-2020-014

Published Online: 26-March-2020

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