scholarly journals Cross-Regional Highway Built through a City Centre as an Example of the Sustainable Development of Urban Transport

2020 ◽  
Vol 12 (24) ◽  
pp. 10403
Author(s):  
Magdalena Żak ◽  
Anna Mainka

Sustainable development requires ensuring the mobility of residents and must not cause deterioration of the quality of the environment in the selected area. The purpose of this study is to verify if the construction of a cross-regional highway through the city centre affected air quality in the neighbourhood of a newly built road. Air quality was assessed based on measurements of concentrations of nitrogen dioxide, which is considered to be typical for automotive sources air pollution. The spectrophotometric method with passive sampling was used in the 24 h NO2 measurements. The calculated mean NO2 concentrations in the periods before and after road construction were within the ranges of 23.2–31.9 μg/m3 and 22.3–28.9 μg/m3, respectively. The relative NO2 concentrations determined in the study for 10 out of 11 sampling points were lower than the unity, including 5 points markedly lower (0.82–0.89). The obtained results indicate that the construction of the new artery by the city centre, using appropriate technical solutions and traffic organization (tunnel, noise barriers, roundabouts, speed limit) likely contributed to an overall reduction in NO2 concentrations. The presented solution may serve as an example for other cities struggling with problems of low air quality associated with inefficient transportation systems.

2014 ◽  
Vol 522-524 ◽  
pp. 231-234
Author(s):  
Xin Yan Li ◽  
Yan Wang ◽  
Hui Zhang ◽  
Hong Jing Chen ◽  
Jing Tian Zhang

Understanding the air quality grade difference among cities in our country plays a role in promoting the improvement of the city air quality and the sustainable development of human environment. This paper analyzes the air quality of the main 31 cities in China with the methods of cluster analysis and correspondence analysis, and according to the index related to air quality, cluster analysis classifies these areas air quality into 5 kinds. The result shows that Haikou and Lhasa rank top 2 in air quality, but Lanzhou and Urumqis air has been polluted most heavily.


2021 ◽  
Vol 13 (12) ◽  
pp. 6928
Author(s):  
Željka Jurković ◽  
Marijana Hadzima-Nyarko ◽  
Danijela Lovoković

Transport and mobility in cities are important factors in the sustainability of the urbanized world. This article investigates one type of intra-urban transport: railway transport and the surrounding areas along the railway, i.e., whether railway corridors can be a factor in the sustainable development of cities in the 21st century. The aim of the article is to determine specific characteristics of railway corridors and identify problems and cultural-historical specifics related to the industrial cultural heritage of the railway. The article examines the importance of an integrated approach to the planning of railway corridors and emphasizes the importance of multicriteria analyses in the decision-making process for corridor areas. As a case study, the city of Osijek is selected because in the past the railway strongly influenced its economical and urban development. Concretization and specification methods applied to the city of Osijek prove that railway corridors can become factors of the sustainable development of cities. The article proves that railway corridors have the potential to transform sustainable urban development because they pass through central, often historical, city areas, they occupy large surfaces and have a long linear spatial continuity. The scientific contribution of the article is the identification and systematization of the contribution of the transformation of railway corridors to the sustainable development of cities.


2021 ◽  
Vol 13 (15) ◽  
pp. 8316
Author(s):  
Camelia Mirela Baba ◽  
Constantin Duguleană ◽  
Marius Sorin Dincă ◽  
Liliana Duguleană ◽  
Gheorghița Dincă

The Covid-19 induced economic crisis has significantly affected almost all businesses from nearly every sector, causing severe financial problems, lack of cash assets, and decrease of revenues. In this context, the economic entities were forced to look for adjustment and rescue solutions of their activities. One possible solution for the recovery and reorganization of economic entities’ activities is demerger. This paper evaluates the impact of demerger upon the sustainable development of economic entities in terms of economic efficiency and financial performances. To achieve this goal, a statistical analysis of profitability ratios before and after the demerger, as well as a structural analysis of 268 demerger projects for the April 2012–April 2021 period, were performed. The results attest there are no significant differences between the ex-ante and ex-post financial performances. However, demerger seems to have a positive effect upon analyzed companies helping them to overcome economic hardships, rethink their business strategies, and continue their activity in the medium and long-term time horizon.


2013 ◽  
Vol 807-809 ◽  
pp. 1881-1885
Author(s):  
Chun Mei Zhang ◽  
Min Zhao ◽  
Xue Lv

In this paper, the indexes that are used to assess the influence of road construction on Inner Mongolia grassland have been proposed based on the environment protection perspective. The Analytic hierarchy process was employed to evaluate the importance of different indexes regarding to influence. These indexes would be used to provide information for decision making about road construction in order to achieve the sustainable development of grassland.


Author(s):  
Ihor Kuzyk

In the article the system of indicators for assessing the balanced functioning of the complex green zone of the city are suggested and substantiated in accordance with the concept of sustainable development. There are distinguished three groups of criteria: ecological, social, and economical. In accordance with each group of criteria there are criteria categories suggested: bioecological, geoecological, landscape and climate-regulating - ecological group; recreational, educational-cultural, and quality of life - social group; market-based and planning - economical group. Each category corresponds to the system of indicators: 27 indicators for the ecological group criteria, 20 for social and 9 for the economical group. The suggested approach to differentiating the criteria for the assessment of the sustainable functioning of the complex green zone of the city allows to summarize and integrate the data about the green zone of the city, define its strong and weak points, and develop a plan for the management of its territories and  increase resilience to human induced pressures. The assessment of the balanced functioning of the complex green zone of Ternopil city was carried out in accordance with the functional-territorial approach. The main geospatial parameters have been defined: deficit of green planting of the forest-park area of CGZC is 614.5 ha, forestry - 2889.5 ha., the deficit of green planting of restricted use is 12 ha, green planting of special-purpose - 62.5 ha., the level of the greening of the city neighborhoods is 4.5 m2/person (at a standard of 6 m2/person). Based on the results of the functional parameters calculations it has been established that  to «provide oxygen» to the residents of Ternopil it needs to increase the area of forests in the forest-part district of CGZC by 83.5 ha to ensure the optimal indicators of recreational capacity of this area, it is essential to increase the area of parks by 90 ha and forests by 965 ha. In Ternopil, the speed of the maximum flow is 6 million m3/hour with the rainfall intensity of 55 mm/hour, while the sewerage network of the city can only handle the flow of 30 thousand m3/hour . Therefore, it could be argued that the complex green zone of Ternopil city is characterized by the imbalance of the main functional-territorial parameters and requires the implementation of the optimization measures.. Key words: sustainable development, complex green zone of the city, indicators, normative parameters, city of Ternopil.


2021 ◽  
Vol 74 (2) ◽  
pp. 30-40
Author(s):  
S.A. Abenov ◽  

This article examines the socio-economic development of monotowns in Kazakhstan on the example of Zhezkazgan city. The authors analyzed the satisfaction of citizens with the living conditions in monotowns, as well as identified the problems of sustainable development and prospects for socio-economic transformation of this region. The results of the study showed that the main problem of a monotown is its dependence on the city-forming enterprise. At the same time, respondents expressed a high desire to migrate to other regions (78% of respondents).


2016 ◽  
Vol 11 (1) ◽  
pp. 209
Author(s):  
Arghavan Momtazpour ◽  
Masoud Taghvaei ◽  
Neda Rahmani

Since urban space is one of the important places that tourism takes place, in order to create stability in tourism, the interaction between tourism planning and urban sustainable development should be investigated with regard to cultural elements. Lifestyle is derived from culture as a social phenomenon and affects it and is a reflection of human thoughts in relation with behavior, ethics and culture. Therefore, this aim of this research is to investigate the role of lifestyle in urban tourism sustainable development in Esfahan city, the third most populous city in Iran. This research’s goal is Practical and developmental and about the origin and method, it is descriptive, analytical and casual that has been done in a field research method. The statistical populations of this research are: tourism custodians, tourism experts, national tourists who have travelled to Esfahan city and local residents of all 15 municipal districts of the city. Simple random sampling method was utilized and 838 questionnaires were gathered from 4 statistical populations. In order to analyze the data, factor analysis test was utilized by smart PLS software. The results show that there are meaningful connections among the variables “lifestyle”, “sustainable development” and “urban tourism”. The most frequent factor that was selected by respondents for the concept of lifestyle in the statistical population was sociocultural factor (such as: visiting relatives and friends and attending soirees, traditional foods and drinks festivals, the desirability of Esfahan city in order to spend leisure time, the willingness toward group entertainment). For the concept “urban tourism”, all the populations chose urban texture significantly (such as: revival of workshops for producing traditional clothes, hand-made attractions, systematizing historical areas, developing sidewalk routes, constructing modern entertaining centers and systematizing landscapes and providing equipment for parks). About the sustainable development and its multi-dimensional nature, however, different factors were selected by respondents which in order of importance and frequency are economic, environmental, urban management, sociocultural, urban texture and political factors. Among the recommendations, a few can be stated: arranging cultural plans with a focus on soiree and elders’ reunions, holding traditional and religious festivals in different parts of the city, improving the condition of the existing theme parks and diversifying leisure and entertainment facilities of Esfahan city and pitching in municipal management and being parallel with plans of different organization in city. Especially by mayoralty as a trustee for city and cultural heritage could be mentioned as a tourism trustee.


Author(s):  
Łukasz Wróblewski ◽  
Andrzej Kasperek

The article discusses the issue of the sustainable development of the cross-border market for cultural services in a city divided by the state border. The article uses the example of Cieszyn and Český Těšín, a city divided following the decision of the Council of Ambassadors in 1920. The research carried out so far indicates the main constraints in the harmonious functioning of the cross-border market for cultural services in this city, such as: different cultural policies implemented on both sides of the city, language barriers as well as legal and administrative differences. Therefore, the authors undertook research aimed at recognising the role of Euroregional structures in stimulating the sustainable development of this region. On the basis of the analysis of the Cieszyn Silesia Euroregion's documentation and the results of qualitative and quantitative research, the article describes the role of the Euroregion in building a cross-border market for cultural services. Recommendations were also prepared that could constitute the principles of a common cultural policy not only for Cieszyn and Český Těšín, but also for other European cities in the Schengen Area, which, like Cieszyn and Český Těšín, have been divided by a state border.


PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10727
Author(s):  
Hiroki Murata ◽  
Motoyuki Hara ◽  
Chinatsu Yonezawa ◽  
Teruhisa Komatsu

Background Coastal ecosystems are blue infrastructures that support coastal resources and also aquaculture. Seagrass meadows, one of coastal ecosystems, provide substrates for epiphytic diatoms, which are food resources for cultured filter feeder organisms. Highly intensive coastal aquaculture degrades coastal environments to decrease seagrass meadows. Therefore, efficient aquaculture management and conservation of seagrass meadows are necessary for the sustainable development of coastal waters. In ria-type bays, non-feeding aquaculture of filter feeders such as oysters, scallops, and ascidians are actively practiced along the Sanriku Coast, Japan. Before the 2011 Great East Japan Earthquake, the over-deployment of oyster culture facilities polluted the bottom environment and formed an hypoxic bottom water layer due to the organic excrements from cultured oysters. The tsunami in 2011 devastated the aquaculture facilities and seagrass meadows along the Sanriku Coast. We mapped the oyster culture rafts and seagrass meadows in Nagatsura-ura Lagoon, Sanriku Coast before and after the tsunami and monitored those and environments after the tsunami by field surveys. Methods We conducted field surveys and monitored the environmental parameters in Nagatsura-ura Lagoon every month since 2014. We used high-resolution satellite remote sensing images to map oyster culture rafts and seagrass meadows at irregular time intervals from 2006 to 2019 in order to assess their distribution. In 2019, we also used an unmanned aerial vehicle to analyze the spatial variability of the position and the number of ropes suspending oyster clumps beneath the rafts. Results In 2013, the number and distribution of the oyster culture rafts had been completely restored to the pre-tsunami conditions. The mean area of culture raft increased after the tsunami, and ropes suspending oyster clumps attached to a raft in wider space. Experienced local fishermen also developed a method to attach less ropes to a raft, which was applied to half of the oyster culture rafts to improve oyster growth. The area of seagrass meadows has been expanding since 2013. Although the lagoon had experienced frequent oyster mass mortality events in summer before the tsunami, these events have not occurred since 2011. The 2011 earthquake and tsunami deepened the sill depth and widened the entrance to enhance water exchange and improve water quality in the lagoon. These changes brought the expansion of seagrass meadows and reduction of mass mortality events to allow sustainable oyster culture in the lagoon. Mapping and monitoring of seagrass meadows and aquaculture facilities via satellite remote sensing can provide clear visualization of their temporal changes. This can in turn facilitate effective aquaculture management and conservation of coastal ecosystems, which are crucial for the sustainable development of coastal waters.


2015 ◽  
Vol 2 (313) ◽  
Author(s):  
Alicja Małgorzata Graczyk

The city of Heidelberg has won twice the price of European Sustainable City Award. The paper presents the latest author’s investigation (July 2014) about the sustainable development in the Heidelberg. The aim of the article is an analyses and assessment of the implementation of sustainable development in the city. The policy and economical instruments implemented at the local level at the very early stage (early 90s) help the city to build ecological education and shape ecological style of life.. The city citizens have a very high level of ecological awareness and very often participate in policy decisions, shaping sustainable development goals of the Heidelberg. The main local priorities for sustainable development are: climate and environment protection, rising energy efficiency by using renewable energy sources, local heat district, ecological transport and building in passive standard.


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