scholarly journals Estimating Urban Road Transport Vehicles Emissions in the Rijeka City Streets

2021 ◽  
Vol 33 (2) ◽  
pp. 165-178
Author(s):  
Livia Maglić ◽  
Tomislav Krljan ◽  
Neven Grubišić ◽  
Lovro Maglić

The growing demand for private and public transport services in urban areas requires sophisticated approaches to achieve satisfactory mobility standards in urban areas. Some of the main problems in urban areas today are road congestions and consequently vehicle emissions. The aim of this paper is to propose a methodological approach for the estimation of vehicle emissions. The proposed methodology is based on two interrelated models. The first model is a microscopic simulation SUMO model which can be used to identify the most congested urban areas and roads with critical values of traffic parameters. The second model is the COPERT Street Level for estimating vehicle emissions. The proposed models were tested on the urban area of Rijeka. The results of the microscopic SUMO simulation model indicate six urban roads with the critical traffic flow parameters. On the basis of the six identified urban roads, an estimation of vehicle emissions was carried out for specific time periods: 2017, 2020, 2025, and 2030. According to the results of the second model, the urban road R20-21 was identified as the most polluted road in the urban district of Rijeka. The results indicate that over the period 2017–2030, CO emissions will be reduced on average by 57% on all observed urban roads, CO2 emissions by 20%, and PM emissions by 58%, while the largest reduction of 65% will be in NOx emissions.

Author(s):  
José van

Platformization affects the entire urban transport sector, effectively blurring the division between private and public transport modalities; existing public–private arrangements have started to shift as a result. This chapter analyzes and discusses the emergence of a platform ecology for urban transport, focusing on two central public values: the quality of urban transport and the organization of labor and workers’ rights. Using the prism of platform mechanisms, it analyzes how the sector of urban transport is changing societal organization in various urban areas across the world. Datafication has allowed numerous new actors to offer their bike-, car-, or ride-sharing services online; selection mechanisms help match old and new complementors with passengers. Similarly, new connective platforms are emerging, most prominently transport network companies such as Uber and Lyft that offer public and private transport options, as well as new platforms offering integrated transport services, often referred to as “mobility as a service.”


2019 ◽  
Vol 67 ◽  
pp. 01004
Author(s):  
Olga Ievsieieva

In the study, the authors have identified the dominant trends in the development of the international road transport services market. These include monopolization and protectionism, structural imbalances, namely, predominance of European transport companies in the international motor transport market, prevailing of private transport companies. Hence, the researchers determined the general vector of improvement of the motor transport services market in the modern stage of internationalization of global economic relations. The current trends in the development of the international road transport services market in Ukraine are substantiated. The authors propose a competitiveness assessment methodology for transport enterprises. It is proposed to quantify the following elements as part of the competitiveness coefficient of a transport enterprise: 1) the range of offered transportation services; 2) pricing policy; 3) advertising; 4) public relations; 5) sales system; 6) employee incentive system; 7) innovative activity of the enterprise. Using the proposed methodological approach will help making reasonable management decisions to improve the efficiency of transport enterprises, to expand the information base of economic research, and to improve the quality of analysis in the context of accelerated development of the international logistics infrastructure.


2021 ◽  
Vol 10 (3) ◽  
pp. 89
Author(s):  
Pezhman Alborzi

Passengers' satisfaction of urban road transportation services has been widely researched over the past few decades. However, no study has been conducted to analyze the relationship of the passengers' satisfaction of regular taxi and bus transport services with an external psychological factor. To this end, 100 passengers were randomly recruited to participate in this study. The participants were required to complete three questionnaires to assess their level of belonging and their satisfaction of regular taxi and bus transport services as two prominent urban road transport services. The questionnaire of sense of belonging had 12 items rated on a 5-point Likert Scale. The responses also were rated from “strongly disagree” to “strongly agree”. The respondents were requested to grade 1 to 10 an 18-travel-attribute survey to assess their satisfaction of urban road transport services. The results indicated that passengers were not satisfied with urban road transport services; however, their satisfaction with regular taxi was higher in comparison with bus transport services. The findings also revealed that there was a significant correlation between the passengers' level of belonging and their satisfaction of public transport services.


2020 ◽  
Vol 2020 (12) ◽  
pp. 3-20
Author(s):  
Vіktorіia YANOVSKA ◽  
◽  
Anna KYRYCHENKO ◽  

In the crisis and post-crisis periods, in conditions of uncertainty and risk of new socio-economic normal, the problem of finding opportunities for economic growth and directions of strategic development of transport enterprises, in particular road transport, is especially relevant. The aim of the study is to provide an empirical, analytical and conceptual basis for the development strategy of road transport companies taking into account the modal features of freight transport in the European Union, as well as informing the scientific community and the public about quantitative and qualitative parameters of the European transport market, patterns of change in macroeconomic indicators. Achieving this goal requires an analysis of the general parameters of the EU freight market compared to similar indicators of the transport system of Ukraine. The study proposed and used a methodological approach that involves the use of relative and specific indicators (market share, network density, average transport distance), includes grouping (if necessary, two-iteration) of countries depending on the value of indicators and focuses on their comparison in Ukraine and EU countries. According to the results of benchmarking, a number of prognostic conclusions and substantiated assumptions about the prospects of further development of the freight market of Ukraine, which, taking into account the global socio-economic context, outline general trends and detail the directions of internal and external transformations of road transport enterprises. The proposed approach can become more meaningful through a combination of macroeconomic scenarios. Substantiation of probable scenarios and determination of directions of necessary changes will allow motor transport enterprises to realize economic potential more effectively, to make optimal use of competitive advantages, to increase cost, to become more flexible and at the same time more resilient in the conditions of new crises and risks.


Author(s):  
Alevtina Anatolievna Rayushkina ◽  
Irina Anatolievna Morozova

The article considers the problem of competitiveness of motor transport services in the context of hierarchical levels of economic management. Resource, operational and strategic competitive advantages of subjects-operators of the market of motor transport services on nano-, micro-, meso-, quasi-, macro- and megalevel have been allocated. The level of competitiveness of road transport services at a particular time is determined not only by competitive advantages of the subjects-operators of the market of motor transport services, but also by the joint impact of many factors on their activities. Research and analysis of these factors can determine whether they contribute to or hinder the achievement of the higher level of motor transport service competitiveness. There has been carried out the comparative analysis of forming road transport service competitiveness. It has been stated that at all levels of economic management the process of forming the competitiveness of motor transport services is specific. Presented typology of competitiveness of motor transport services at different levels of economic management acts as a methodological approach which contributes to theoretical justification of the concept of “competitiveness of motor transport services”, allows better assessing the activities of competitors. Besides, this approach enables the subject-operator of the market of motor transport services to navigate with greater accuracy for further operation in order to obtain advanced results due to using its competitive advantages. In the conditions of rapid innovative development of integration processes of the world economy, marketing to a large extent determines the level of competitiveness of motor transport services. Thus, the process of developing and realization of marketing strategies for improving competitiveness of motor transport enterprises is very important.


2017 ◽  
Vol 6 (2) ◽  
pp. 1-16
Author(s):  
Mihai Dicu ◽  
Isam Mirza ◽  
Flavius - Florin Pavăl

Abstract In this paper will be presented the influence of high temperatures on asphalt street pavement in terms of the influence of temperature on permanent deformations and thus the technical condition of the streets, comparable to the effects induced on extra-urban roads. Environmental factors are one of the mayn factors being assaulted in operation and road structures are very important in terms of the influence they can have on the state road transport technical infrastructure. Will be presented differences between urban road structures (streets) and extra-urban (road) both in terms of construction, the demands of traffic and environmental conditions to which they are subject. Road structures extra-urban and urban areas are required differently in terms of the environmental conditions of the location ambient different thereof, that is, when the streets they are inside localities and the built environment significantly affect road infrastructure, unlike in the case of roads where they are located just outside the settlements, reducing the effect of air currents accumulation pavement surface temperature. To demonstrate the influence of high temperatures on the pavement were conducted laboratory tests on asphalt mixtures in order to demonstrate the occurrence of reduction of physical characteristics, with adverse implications on the performance of applications similar to traffic.


Author(s):  
Kim Jraiw

Most of the world’s population and economic growth is occurring in the developing countries (DC) of the Asia-Pacific region. DCs will experience most of the world’s urban growth. Motor vehicles are growing at two to three times the population rate. Road safety and congestion are major concerns. As a consequence, DCs now face alarming urban road transport challenges, which are expected to continue for some years. The supply of transport services has not matched the increased demand, because of insufficient infrastructure development. No comprehensive strategy exists to address the safety and efficiency of the urban transport system. A review is presented of the development of an integrated road safety strategy to address such key concerns as the need to establish a national road safety council, transport data system, and road safety monitoring and enforcement system. An urban road transport strategy is introduced that has been developed to address the overall transport problem, including assessment, objectives, and implementation. The strategy encompasses a wide range of issues, in a comprehensive framework, to create a competitive and sustainable approach to address problems, improve institutional capacity, optimize resource use, and link the road system to community benefits and expectations. Government leadership and sponsor involvement are addressed.


Energies ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 217
Author(s):  
Amela Ajanovic ◽  
Marina Siebenhofer ◽  
Reinhard Haas

Environmental problems such as air pollution and greenhouse gas emissions are especially challenging in urban areas. Electric mobility in different forms may be a solution. While in recent years a major focus was put on private electric vehicles, e-mobility in public transport is already a very well-established and mature technology with a long history. The core objective of this paper is to analyze the economics of e-mobility in the Austrian capital of Vienna and the corresponding impact on the environment. In this paper, the historical developments, policy framework and scenarios for the future development of mobility in Vienna up to 2030 are presented. A major result shows that in an ambitious scenario for the deployment of battery electric vehicles, the total energy demand in road transport can be reduced by about 60% in 2030 compared to 2018. The major conclusion is that the policies, especially subsidies and emission-free zones will have the largest impact on the future development of private and public e-mobility in Vienna. Regarding the environmental performance, the most important is to ensure that a very high share of electricity used for electric mobility is generated from renewable energy sources.


2021 ◽  
pp. 003022282110327
Author(s):  
Souvik Mondal

Telling the truth to the terminal-stage cancer patients differs socio-culturally based on the priorities assigned to patients’ autonomy and the principles of beneficence and non-maleficence. After conducting in-depth interviews with 108 terminal-stage adult cancer patients, 306 family members, and 25 physicians, in private and public hospitals in both rural and urban areas, in the state of West Bengal, India it has been found that even though 85.60% of the patients prefer full disclosure, only 22.03% are actually informed. Though demographic characteristics, like age, gender, education etc., have marginal influences over the pattern of truth-telling, the main factor behind non-disclosure is the family members’ preference for principles of beneficence and non-maleficence over patient autonomy. Hence, only 9.32% of those 118 patients’ family members have agreed to full disclosure. Physicians comply with this culture of non-disclosure as family, in India, is the centre of decision-making and acts as the primary unit of care.


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