Transportation of hazardous goods is a demanding and risky job. The greatest risks, dangers and consequences for the population and the environment are associated with the transport of hazardous goods. Today, numerous systems and software packages have been developed, the aim of which is to improve the performance of this type of transport and mitigate the consequences of possible accidents. By monitoring and adaptive management of the transport of hazardous goods in road traffic, the consequences of traffic accidents can be repaired more quickly and the movement of vehicles with hazardous goods can be directed to safer routes.
{"title":"Management of transport of hazardous materials","authors":"Slavojka Lazić, Z. Avramović, Danislav Drašković","doi":"10.7251/jtttp2202073l","DOIUrl":"https://doi.org/10.7251/jtttp2202073l","url":null,"abstract":"Transportation of hazardous goods is a demanding and risky job. The greatest risks, dangers and consequences for the population and the environment are associated with the transport of hazardous goods. Today, numerous systems and software packages have been developed, the aim of which is to improve the performance of this type of transport and mitigate the consequences of possible accidents. By monitoring and adaptive management of the transport of hazardous goods in road traffic, the consequences of traffic accidents can be repaired more quickly and the movement of vehicles with hazardous goods can be directed to safer routes.","PeriodicalId":295974,"journal":{"name":"JTTTP - JOURNAL OF TRAFFIC AND TRANSPORT THEORY AND PRACTICE","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125664535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The problem of road safety is an important factor in traffic safety, recognized as one of the main goals in the process of improving traffic safety. Improving both the capacity and safety of roads requires, along with large financial investments, planning and developing new tools in order to ensure prevention of traffic accidents and mitigation of their consequences. Establishing a road safety system is based on detailed knowledge of the current safety of the road, as well as on implementing adequate countermeasures that would eliminate existing safety risks. For this, traffic safety tools used for assessing safety are very important, especially in the road design stage, as well during assessment of traffic safety on the existing road.
{"title":"Contemporary methods of road safety risk management","authors":"Danislav Drašković, Vladimir Gatarić","doi":"10.7251/jtttp2202066d","DOIUrl":"https://doi.org/10.7251/jtttp2202066d","url":null,"abstract":"The problem of road safety is an important factor in traffic safety, recognized as one of the main goals in the process of improving traffic safety. Improving both the capacity and safety of roads requires, along with large financial investments, planning and developing new tools in order to ensure prevention of traffic accidents and mitigation of their consequences. Establishing a road safety system is based on detailed knowledge of the current safety of the road, as well as on implementing adequate countermeasures that would eliminate existing safety risks. For this, traffic safety tools used for assessing safety are very important, especially in the road design stage, as well during assessment of traffic safety on the existing road.","PeriodicalId":295974,"journal":{"name":"JTTTP - JOURNAL OF TRAFFIC AND TRANSPORT THEORY AND PRACTICE","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122776674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Due to the increase in the number of vehicles on the roads, the environment is becoming increasingly burdened by exhaust gases produced by the combustion of fuel in internal combustion engine vehicles (ICEVs). The most significant gases produced by the combustion of fossil fuels in ICEVs are: nitrogen oxides (NOx), sulfur oxides (SOx), carbon oxides (CO and CO2), water steam, particulate matters (PM) and various hydrocarbons (CH). Alternatives to fossil fuels are increasingly being explored in order to reduce the harmful impact of exhaust gases on the environment. One of the possibilities of reducing harmful gas emissions is the use of alternative drives and fuels. An alternative to fossil fuels produced from crude oil are biofuels produced from renewable sources. The use of biofuels in internal combustion engines leads to a significant reduction in the emissions of harmful exhaust gases from vehicles and, therefore, to a reduction in environmental pollution.
{"title":"Biofuels as an alternative drive for vehicles","authors":"Novak Damjanović, D. Kojić","doi":"10.7251/jtttp2202082d","DOIUrl":"https://doi.org/10.7251/jtttp2202082d","url":null,"abstract":"Due to the increase in the number of vehicles on the roads, the environment is becoming increasingly burdened by exhaust gases produced by the combustion of fuel in internal combustion engine vehicles (ICEVs). The most significant gases produced by the combustion of fossil fuels in ICEVs are: nitrogen oxides (NOx), sulfur oxides (SOx), carbon oxides (CO and CO2), water steam, particulate matters (PM) and various hydrocarbons (CH). Alternatives to fossil fuels are increasingly being explored in order to reduce the harmful impact of exhaust gases on the environment. One of the possibilities of reducing harmful gas emissions is the use of alternative drives and fuels. An alternative to fossil fuels produced from crude oil are biofuels produced from renewable sources. The use of biofuels in internal combustion engines leads to a significant reduction in the emissions of harmful exhaust gases from vehicles and, therefore, to a reduction in environmental pollution.","PeriodicalId":295974,"journal":{"name":"JTTTP - JOURNAL OF TRAFFIC AND TRANSPORT THEORY AND PRACTICE","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124157539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Research conducted in recent decades has shown that there are significant variations in speed at roundabouts depending on the geometric elements. Due to the characteristics of roundabouts and the way vehicles move, there is a reduction in speed, not only in the roundabout zone, but also in circulation (roundabout). This paper analyzes the influence of different types of roundabouts as one of the elements of the street system, on speed as one of the basic parameters of traffic flow that defines the functionality and quality of traffic conditions.
{"title":"Influence of geometric elements of roundabouts on circulating lane speed (roundabout)","authors":"Slavko Davidović","doi":"10.7251/jtttp2202057d","DOIUrl":"https://doi.org/10.7251/jtttp2202057d","url":null,"abstract":"Research conducted in recent decades has shown that there are significant variations in speed at roundabouts depending on the geometric elements. Due to the characteristics of roundabouts and the way vehicles move, there is a reduction in speed, not only in the roundabout zone, but also in circulation (roundabout). This paper analyzes the influence of different types of roundabouts as one of the elements of the street system, on speed as one of the basic parameters of traffic flow that defines the functionality and quality of traffic conditions.","PeriodicalId":295974,"journal":{"name":"JTTTP - JOURNAL OF TRAFFIC AND TRANSPORT THEORY AND PRACTICE","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115655415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this article given is the analysis of the development of artificial intelligence- AI in insurance companies, which has caused the execution of the following tasks: analysis of the role and significance of artificial intelligence in insurance;description of software tools in insurance; description of implementation of artificial intelligence in insurance industry. Based on the conducted analysis it is concluded that possibilities of artificial intelligence in insurance are almost infinite. Technology contributes to better clarified claims, helps insurance companies to identify fraud and automatically avoid losses. Due to all this, the insurance companies on the market improve their production cycle while clients are provided with better service and better rates. Artificial intelligence assists us in improving the business today and will do so in the future: increase competitiveness, enhance the engagement of clients, accelerate innovations, increase profitability and productivity of employees.
{"title":"Artificial intelligence in insurance companies","authors":"Jaroslav Lupačov, Zeljko Stankovic","doi":"10.7251/jtttp2202077l","DOIUrl":"https://doi.org/10.7251/jtttp2202077l","url":null,"abstract":"In this article given is the analysis of the development of artificial intelligence- AI in insurance companies, which has caused the execution of the following tasks: analysis of the role and significance of artificial intelligence in insurance;description of software tools in insurance; description of implementation of artificial intelligence in insurance industry. Based on the conducted analysis it is concluded that possibilities of artificial intelligence in insurance are almost infinite. Technology contributes to better clarified claims, helps insurance companies to identify fraud and automatically avoid losses. Due to all this, the insurance companies on the market improve their production cycle while clients are provided with better service and better rates. Artificial intelligence assists us in improving the business today and will do so in the future: increase competitiveness, enhance the engagement of clients, accelerate innovations, increase profitability and productivity of employees.","PeriodicalId":295974,"journal":{"name":"JTTTP - JOURNAL OF TRAFFIC AND TRANSPORT THEORY AND PRACTICE","volume":"13 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120989973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper is based on actual U-space regulatory framework defined by the international regulators like EASA, JARUS, FAA and connected actors like AIRBUS, EUROCONTROL or AMAZON. The aim of the work is to analyze requirements for the most complex use cases and define possible deficits in time, capacity and safety. The result should define possible more efficient methods, technologies and procedures and emphasize main development directions for efficient and robust traffic management system.
{"title":"Time based separation model in high density U-space traffic environment","authors":"V. Milosevic, Mirjana Vasiljević","doi":"10.7251/jtttp2202053m","DOIUrl":"https://doi.org/10.7251/jtttp2202053m","url":null,"abstract":"This paper is based on actual U-space regulatory framework defined by the international regulators like EASA, JARUS, FAA and connected actors like AIRBUS, EUROCONTROL or AMAZON. The aim of the work is to analyze requirements for the most complex use cases and define possible deficits in time, capacity and safety. The result should define possible more efficient methods, technologies and procedures and emphasize main development directions for efficient and robust traffic management system.","PeriodicalId":295974,"journal":{"name":"JTTTP - JOURNAL OF TRAFFIC AND TRANSPORT THEORY AND PRACTICE","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129955260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Achieving business continuity and sustainable success of the transport organization requires a comprehensive approach that involves the consideration and resolution of a large number of factors that affect its business and arise from the specifics of its activities. Based on the author’s experiences, in this paper discusses issues of importance for achieving sustainable success and business continuity of the transport organization in a modern, very complex and dynamic business environment. Coordinated consideration and resolution of all these issues is the essence of an approach that enables the achievement of expected results. As a the most important factors for achieving the organization’s ability to achieve sustainable success and business continuity the following factors are highlighted: understanding the context of the organization, the organization’s resilience to environmental influences, application of approaches “Risk-based thinking” and “Risk-based management”, integration of management systems, continuous improvement and application of international standards for management systems. The application of the described approach is possible, except in transport, in other organizations, taking into account its specifics.
{"title":"Comprehensive Approach to Achieving Business Continuity and Sustainable Success of the Transport Organization","authors":"Vitomir T. Miladinović, D. Jovanovic","doi":"10.7251/jtttp2101019m","DOIUrl":"https://doi.org/10.7251/jtttp2101019m","url":null,"abstract":"Achieving business continuity and sustainable success of the transport organization requires a comprehensive approach that involves the consideration and resolution of a large number of factors that affect its business and arise from the specifics of its activities. Based on the author’s experiences, in this paper discusses issues of importance for achieving sustainable success and business continuity of the transport organization in a modern, very complex and dynamic business environment. Coordinated consideration and resolution of all these issues is the essence of an approach that enables the achievement of expected results. As a the most important factors for achieving the organization’s ability to achieve sustainable success and business continuity the following factors are highlighted: understanding the context of the organization, the organization’s resilience to environmental influences, application of approaches “Risk-based thinking” and “Risk-based management”, integration of management systems, continuous improvement and application of international standards for management systems. The application of the described approach is possible, except in transport, in other organizations, taking into account its specifics.","PeriodicalId":295974,"journal":{"name":"JTTTP - JOURNAL OF TRAFFIC AND TRANSPORT THEORY AND PRACTICE","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125607531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The primary task of traffic and transportation planning is to improve the conditions of traffic and level of service on the entire road network. On three sections, which were analyzed in this paper, the possibility of reducing the precentage of no passing zones was noticed, by changing the horizontal signalization on the segments of road section where the clear visibility for overtaking was determined for one direction of the two-way highway. In the first part of the paper, the analysis of traffic conditions on the existing and on the newly designed variants of all three observed road sections was performed. Analysis of the level of service on the intersections that are part of this research are done in chapter 2. Increasing the speed on the newly designed section results in a reduced travel time and this leads to savings in fuel costs as shown in chapter 3. Traffic forecast for the planning 2029 is done in chapter 4, the forecasted traffic load implies future traffic volumes for which adequate capacities of the road network need to be provided. Chapter 5 is based on determination of the relationship between the benefits brought by the newly designed variant and the costs that are realized during its construction. The results of this analysis were used as input data for the economic evaluation of the project solutions, where the savings in fuel costs were analyzed.
{"title":"Analysis of the Impact of no Passing Zones on Fuel Costs","authors":"N. Ruškić, T. Pavlica, Jelena Nišić","doi":"10.7251/jtttp2101008r","DOIUrl":"https://doi.org/10.7251/jtttp2101008r","url":null,"abstract":"The primary task of traffic and transportation planning is to improve the conditions of traffic and level of service on the entire road network. On three sections, which were analyzed in this paper, the possibility of reducing the precentage of no passing zones was noticed, by changing the horizontal signalization on the segments of road section where the clear visibility for overtaking was determined for one direction of the two-way highway. In the first part of the paper, the analysis of traffic conditions on the existing and on the newly designed variants of all three observed road sections was performed. Analysis of the level of service on the intersections that are part of this research are done in chapter 2. Increasing the speed on the newly designed section results in a reduced travel time and this leads to savings in fuel costs as shown in chapter 3. Traffic forecast for the planning 2029 is done in chapter 4, the forecasted traffic load implies future traffic volumes for which adequate capacities of the road network need to be provided. Chapter 5 is based on determination of the relationship between the benefits brought by the newly designed variant and the costs that are realized during its construction. The results of this analysis were used as input data for the economic evaluation of the project solutions, where the savings in fuel costs were analyzed.","PeriodicalId":295974,"journal":{"name":"JTTTP - JOURNAL OF TRAFFIC AND TRANSPORT THEORY AND PRACTICE","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132535032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Transport system has multiple interactions and multidimensional effects on the environment, by way of, amongst other, land acquisition and urban pollution; on economic development with regard to the GDP growth; as well as on social equity in terms of access, quality of life and health of population. This paper considers the possibility of introducing toll collection in the Republic of Srpska. The goal of the developed model is to increase revenue, which could be directed to the sustainable development of transport in the Republic of Srpska. The selection of a toll collection system has been made taking account of: economic, traffic, technical, organizational and exploitation criteria. Multiple-criteria approach has been applied together with the Analytic Hierarchy Process.
{"title":"Selection of the Optimal Toll Collection System for the Purposes of Sustainable Development of Transport in the Republic of Srpska","authors":"Zoran Injac, Danislav Drašković","doi":"10.7251/jtttp2101030i","DOIUrl":"https://doi.org/10.7251/jtttp2101030i","url":null,"abstract":"Transport system has multiple interactions and multidimensional effects on the environment, by way of, amongst other, land acquisition and urban pollution; on economic development with regard to the GDP growth; as well as on social equity in terms of access, quality of life and health of population. This paper considers the possibility of introducing toll collection in the Republic of Srpska. The goal of the developed model is to increase revenue, which could be directed to the sustainable development of transport in the Republic of Srpska. The selection of a toll collection system has been made taking account of: economic, traffic, technical, organizational and exploitation criteria. Multiple-criteria approach has been applied together with the Analytic Hierarchy Process.","PeriodicalId":295974,"journal":{"name":"JTTTP - JOURNAL OF TRAFFIC AND TRANSPORT THEORY AND PRACTICE","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124851190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pedestrians are a vulnerable group of traffic users who most often suffer serious physical injuries in collisions with motor vehicles, which very often have a fatal outcome. The modern automotive industry is investing great efforts in the development of active and passive protection systems for all traffic participants, including pedestrians. Pedestrian protection is tried to be achieved by changing the shape of the front parts of the vehicle, by using plastic materials with higher deformation potential which, in collision with the body of the pedestrian, will spend most of the impact energy on its own deformation and thus maximally spare the delicate biological tissue of the pedestrian. Instead of protruding, rigid metal structures of insignificant elasticity and deformation potential, today’s cars are characterized by appropriate body design, use of high elasticity materials and deformation of contact surfaces, specially shaped and integrated bumpers, elastic and raised bonnet, headlights integrated into the contour of the vehicle front which are capable of absorbing part of the impact energy. Modern research shows a certain efficiency of these improvements on modern cars. Most of these studies are of the experimental type and are done in strictly controlled conditions on dolls, often commissioned and funded by wealthy automobile corporations, while there is less research in real field conditions. Recently, experiments have been made with testing the active bonnet, the airbag under the bonnet, and the google model of gluing the pedestrian body.
{"title":"Telematics of new vehicles for the purpose of pedestrian safety","authors":"Danislav Drašković, Slobodan Tošić, Тomislav Vujinović","doi":"10.7251/jtttp2101035d","DOIUrl":"https://doi.org/10.7251/jtttp2101035d","url":null,"abstract":"Pedestrians are a vulnerable group of traffic users who most often suffer serious physical injuries in collisions with motor vehicles, which very often have a fatal outcome. The modern automotive industry is investing great efforts in the development of active and passive protection systems for all traffic participants, including pedestrians. Pedestrian protection is tried to be achieved by changing the shape of the front parts of the vehicle, by using plastic materials with higher deformation potential which, in collision with the body of the pedestrian, will spend most of the impact energy on its own deformation and thus maximally spare the delicate biological tissue of the pedestrian. Instead of protruding, rigid metal structures of insignificant elasticity and deformation potential, today’s cars are characterized by appropriate body design, use of high elasticity materials and deformation of contact surfaces, specially shaped and integrated bumpers, elastic and raised bonnet, headlights integrated into the contour of the vehicle front which are capable of absorbing part of the impact energy. Modern research shows a certain efficiency of these improvements on modern cars. Most of these studies are of the experimental type and are done in strictly controlled conditions on dolls, often commissioned and funded by wealthy automobile corporations, while there is less research in real field conditions. Recently, experiments have been made with testing the active bonnet, the airbag under the bonnet, and the google model of gluing the pedestrian body.","PeriodicalId":295974,"journal":{"name":"JTTTP - JOURNAL OF TRAFFIC AND TRANSPORT THEORY AND PRACTICE","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124683611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：