JOURNAL TTTP - TRAFFIC AND TRANSPORT THEORY AND PRACTICE

Visibility at intersections in the city of Banja Luka

Milan Ilić — 2024-06-21

Visibility at intersections in road traffic plays a key role in ensuring the safety and efficiency of the traffic flow. Insufficient visibility at intersections can significantly increase the risk of traffic accidents. This paper investigates the importance of visibility at intersections and its impact on the safe merging of vehicles into traffic. The state of visibility at intersections in the city of Banja Luka is analyzed in order to identify factors that lead to a lack of visibility. Research results are presented that indicate insufficient visibility at certain intersections, which can lead to an increased risk of traffic accidents. Recommendations and opportunities for improving visibility at intersections are also discussed, including proper placement of traffic signs, signage and removal of obstructions that impede visibility. The importance of driver awareness of the importance of visibility and timely reaction at intersections is emphasized. This paper provides insight into the problem of lack of visibility at intersections and highlights the need to take measures to improve road traffic safety.

Selection of an Electric Forklift for the Operational Planning Needs of the Warehouse System of GTC Doboj

Rade Petrović — 2024-06-21

The selection of handling equipment represents an important aspect of operational planning in logistics centers and affects the potential increase in work efficiency. Therefore, it is necessary to consider various factors when making decisions regarding the selection of handling equipment. This paper presents the selection of an electric forklift for the needs of loading and handling activities in a closed warehouse of the GTC (Goods Transport Center) Doboj. An MCDM model, consisting of FUCOM (Full Consistency Method) and MARCOS (Measurement of Alternatives and Ranking According to the COmpromise solution) was applied to evaluate electric forklifts. The FUCOM method was used to determine the values of criteria, and the MARCOS method was used to evaluate electric forklifts. After obtaining the results, sensitivity analysis and comparative analysis were performed.

The influence of the corona virus pandemic on the characteristics of vehicle flow on the e-661 highway

Vladimir Gatarić — 2024-06-21

In this work, the characteristics of the traffic flow on the section of the Gradiška - Banja Luka highway, which is part of the European road route E-661, were analyzed in the period from 2019 to 2022. Data on the size of flow requests were taken from the database of the toll station “Jakupovci” on the Gradiška - Banja Luka highway. When defining the size of the flow request, the structure of the traffic flow was also taken into account, in accordance with the categories according to which the toll is collected. The period in which the analysis of flow characteristics was performed also includes the period in which the coronavirus pandemic reigned, when certain travel rules and prohibitions were in force. In accordance with that, the work will specifically analyze the impact of the COVID 19 pandemic on the characteristics of the traffic flow on the Gradiška - Banja Luka highway section. Given that the „Jakupovci“ toll station is the busiest toll station on the Gradiška - Banja Luka highway, the results of the analysis can be applied to other sections of highways in the Republic of Srpska.

Use of video surveillance systems for detecting seat belt usage, mobile device usage, or vehicle registration - penalty or prevention

Siniša Macan — 2024-06-21

The concept of smart traffic or smart cities involves the use of a large amount of data collected in real-time and processed using available tools. Data is collected from various sources. One common source for traffic control is video or imagery. In many countries, camera systems are installed to monitor traffic, track speed, or oversee intersections. Data is collected and processed in operational centers, allowing for insights into vehicle registration, vehicle speed, and passengers. At the same time, significant risks in traffic arise from the use of mobile phones or smart devices while driving. Furthermore, research indicates that wearing seat belts significantly reduces the risks of traffic accidents. A common occurrence in traffic is that vehicles are unregistered and uninsured. At the same time, the use of video surveillance systems is associated with the protection of privacy and personal data, necessitating the need to find an optimal balance between the right to privacy and the right to a secure environment, including safe participation in public traffic. The aim of this study is to explore the possibility and analyze the use of video surveillance to analyze the use of video surveillance in detecting mobile phone usage and seat belt compliance while driving. The systems for detecting mobile phone usage or seat belt usage during driving can instantly provide information on a prominently displayed screen near the roadside for preventive action. The paper analyzes the use of such systems for prevention purposes, along with an analysis of the potential application of penalties to reduce identified risks in traffic.

Measuring and assessment of road traffic air pollution assessment on the motorway e-661 at the locations near the mahovljani and gradiska interchange

Aleksandar Đukić — 2024-06-21

The paper gives an overview of different air pollution models in projects and studies in the field of road traffic. A brief description is given for the presented models with key elements for their application. Special emphasis in the paper is given to the application of the current model in the Republic of Srpska. Literature analysis in the field of air pollution modeling has shown that there are a large number of air pollution models. The most comprehensive model in terms of applicability and available data is the COPERT IV model, which is widely used in the European Union.

Classification of vehicle routing problem

Zoran Injac — 2024-06-21

The vehicle routing problem is a general name for a whole set of problems in which a group of vehicles located in a depot needs to visit all customers with the condition that only one vehicle visits each customer and that all vehicles return to the depot. Vehicle routing problems are a generalization of the traveling salesman problem. The purpose of present survey in the field of vehicle routing problem (VRP) is to classify different well known variants of VRP according to the type of objects with previously defined system performance was applied . These variants include a whole class of problems where a set of routes for a car fleet located in one or more depots should be determined for some geographically distant nodes or customers, at that, the purpose of routing is the optimization of the series of customers requests (number of vehicles, distance traveled, time spent in vehicles or user waiting time).

Autonomous vehicles in road traffic

Boris Z. Ribarić — 2024-06-21

The tendencies in further technological development and across all branches of industry are well-known worldwide, with a focus on the advancement of robotics and artificial intelligence. Over the years, there has been significant progress in the development of robotics, coupled with increased human awareness of its potential applications. Consequently, we find ourselves in a period where the commercialization and widespread utilization of artificially intelligent machines in human environments have become a reality. Among the significant applications of robotics in human lives is the utilization of robotic vehicles, commonly referred to as autonomous vehicles, in traffic management.
The implementation of new technologies aims to address various challenges in transportation, including congestion reduction, cost optimization, safety enhancement, and mitigation of environmental impact. This endeavor involves the integration of telecommunications, electronics, and informatics with traffic engineering principles for effective planning, design, and management of traffic systems. Such integration leads to improved efficiency and safety within the traffic system, while also yielding positive environmental outcomes.

Optimization of the toll collection system in the Republic of Srpska

Vladimir Gatarić — 2024-06-21

Toll collection, as part of the source for financing the maintenance and reconstruction of existing and construction of new traffic infrastructure facilities, has an extremely significant place in the total costs of the mentioned processes. Therefore, it is extremely important to choose the optimal charging system and technology, which will satisfy the needs of users, as well as the needs of road managers and owners. The subject of this work are toll collection systems and technologies that are used in the world and in our country. The paper will analyze the open and closed tolling system, the zone or cordon system, the “HOV/HOT” system, and the network toll collection system, as well as the advantages and disadvantages of each of them. In addition, various toll collection technologies will be explored, including traditional, manual toll collection, electronic toll collection and vignettes, with a focus on more modern toll collection models and technologies. The main goal of the research is to compare the advantages and disadvantages of each of the toll collection systems and technologies in order to choose the optimal model of toll collection in the Republic of Srpska, which would satisfy all ecological, economic, traffic, security and sociological aspects.

Fuel Cell Technologies in Automotive Applications

Zoran Injac — 2024-06-21

This paper provides an analysis of the latest fuel cell technology through a general description and characteristics of the six most important fuel cell technologies, indicating their use and future development in the automotive industry.

The role of the BRT system in the function of sustainable public passenger transport

Pavle Gladović — 2024-06-21

Bus rapid transit (BRT) is a system of public urban passenger transport (PUPT), based on the bus subsystem, designed to improve capacity and reliability compared to the classic bus system. Typically, a BRT system includes bus lanes and gives priority to buses at intersections where buses can interact with other traffic. Public transport is crucial to the future of a nation. Strengthens the economy, conserves energy and resources, reduces congestion, reduces global warming and improves air quality and health, critical emergency and disaster relief, increases real estate value and development, mobility in small urban and rural communities. As an instrument of transport policy, transport demand management measures generally do not require large material investments, which gives them additional attractiveness. The paper was conceived on the strategy of sustainable development of cities as a function of quality of life, and the basic characteristics of the BRT system and its role in urban mobility are presented in the work. Also, an insight into their potential is given based on past experiences of application in the world’s developed cities.