A Study on the Occurrence, Persistence, and Reuse of Vacant Houses in Deteriorated High-density Residential Areas of Old Downtowns of Large Cities : Focused on Ami-dong and Chojang-dong in Busan

2021 ◽  
Vol 56 (7) ◽  
pp. 73-86
Author(s):  
Yoko Kamata ◽  
Jung Eun Kang
Keyword(s):  
High Density ◽  
Residential Areas ◽  
Large Cities

scholarly journals ON IMPROVEMENT OF ENVIRONMENTAL INDICATORS OF THE KHARKIV MOTORWAY SECTION

2021 ◽  
Vol 6 (166) ◽  
pp. 196-203
Author(s):  
E. Lezhneva ◽  
I. Lynnyk ◽  
K. Vakulenko ◽  
N. Sokolova
Keyword(s):  
Noise Level ◽  
Internal Combustion Engines ◽  
Road Transport ◽  
Environmental Indicators ◽  
Sound Waves ◽  
Solar Panels ◽  
Residential Areas ◽  
Noise Levels ◽  
Large Cities ◽  
Main Area

Nowadays, on the territory of large cities, there is an increase in emissions of harmful substances into the atmosphere. The reasons for this are manifold: violation of design technological regimes, outdated equipment, an increase in the volume of road transport. The constantly growing intensity of traffic flows is annually accompanied by an increase in the anthropogenic load on the population of modern cities. With the increase in the number of vehicles on the streets of large cities, the world community has identified noise as one of the main factors that worsen the standard of living of people. To assess the noise pollution of the environment by road transport, a typical area of the urban area in the Kharkiv micro district was chosen. The study consisted of four main stages: Stage I – assessment of the road condition and environmental situation in the courtyards of the micro district; Stage II – assessment of acoustic pollution of the main area; Stage III – assessment of the concentration of pollutants; Stage IV – measures to reduce the level of environmental hazard. The study revealed that residential areas around Gagarin Avenue are prone to high noise levels and high concentrations of pollutants in the air. So, Gagarin Avenue is in the zone of acoustic discomfort (noise level 80 dBA), which exceeds the permissible noise level, while the degree of man-made impact on the environment during road operation is 1000 UAH / hour for every 100 people. Based on the results of calculations of the concentrations of pollutants from vehicles along Gagarin Avenue, it was found that for almost all substances their concentrations exceed the MPC by more than 3 times. Analysis of the experience of European countries in the use of noise protection screens with integrated solar panels allowed us to propose a model of noise protection barrier with integrated solar panels, which can be used to protect the urban environment from noise, sound waves and exhaust chemicals. gases from internal combustion engines. It has been established that the placement of a combined noise protection screen will reduce the noise level by about 8–15 dBA. Noise load maps were built in the main area before and after the implementation of the environmental measure. The results of the study will make it possible to introduce administrative and legislative measures to ensure regulatory noise levels for residential areas adjacent to highways and environmental safety when organizing traffic on the streets of large cities.

Visual Ecological Design of High-Density Urban Residential Area Based on Green Seeing Ratio

2013 ◽  
Vol 838-841 ◽  
pp. 2923-2927
Author(s):  
Zheng Wang Wu ◽  
Ze Yu
Keyword(s):  
Open Space ◽  
Residential Area ◽  
Effective Index ◽  
High Density ◽  
Ecological Design ◽  
Residential Areas ◽  
Space Design ◽  
Detail Design ◽  
Planning And Design ◽  
Planning And Construction

The article proposed that the green seeing ratio should be introduced in high density planning and design of residential area in China, pointing out that the green seeing ratio is a clear, effective index of strong operational in visual ecological design. It is necessary and feasible that the green seeing ratio as a evaluation index in the planning and construction of high density urban residential area in China. Advocates to take a combination of centralized and decentralized groups-residential areas and other ways of planning that by reducing the area of road, natural green details, take the tortuous roads and other methods can effectively improve the green seeing ratio. Some guidelines being followed in the building layout, open space design, road shape, plant greening in the detail design can effectively improve the green seeing ratio of high density residential area.

scholarly journals MODERN TRENDS IN THE FORMATION OF PUBLIC BUSINESS SPACES

2019 ◽  
Vol 4 (4) ◽  
pp. 94-102
Author(s):  
М. Макарова ◽  
M. Makarova ◽  
Е. Ладик ◽  
Elena Ladik ◽  
С. Киселев ◽  
...  
Keyword(s):  
Russian Federation ◽  
Large Scale ◽  
Large City ◽  
Town Planning ◽  
Residential Areas ◽  
The Sustainable Development ◽  
Large Cities ◽  
Current Trends ◽  
The Russian Federation ◽  
The City

This article examines the urban public and business subcenters as secondary elements of the city system, the closest in properties to its main center. The criteria defining the public business subcenters are highlighted. The current trends in the formation of social and business subcenters in large cities and megalopolises are considered. Analysis of world experience is produced. Foreign concepts of spatial development are analyzed on the example of several existing urban subcenters. Various available cartographic materials and literature sources have been studied. They cover the development of urban business centers and various aspects of urban development. The methods of spatial formation of the planning structure of urban public business subcenters are highlighted: the cluster and channel. The development stages of urban subcenters from the territory of concentration of small trade and residential establishments to large-scale multifunctional urban planning formations are presented. The prospects for the development of business subcenters in major cities of the Russian Federation are analyzed and trends are identified: social and business polycentrism, disposition of administrative and business centers on the outskirts of cities and the formation of self-organizing business subcenters, mainly based on shopping and entertainment centers in residential areas. Prospects for development of urban subcenter in a large city are considered on the example of the city of Belgorod. Conclusions are drawn on the need to develop new models of urban public business subcenters taking into consideration the modern planning specifics of large cities and megalopolises of the Russian Federation. Models of urban public business subcenters must meet the requirements of polyfunctionality, to have high architectural and town planning qualities, to take into account the needs of population in the design area and to ensure the sustainable development of the urban periphery.

scholarly journals Environmental assessment of low speed policies for motor vehicles mobility in city centers

2013 ◽  
Vol 14 (2) ◽  
pp. 192-201
Keyword(s):  
Fuel Consumption ◽  
Real Life ◽  
Pollutant Emissions ◽  
Motor Vehicles ◽  
City Centre ◽  
Speed Limit ◽  
Residential Areas ◽  
Large Cities ◽  
Life Tests ◽  
Real Traffic

In order to assess the influence of reducing the speed limit from 50 km h-1 to 30 km h-1 in one-lane streets in local residential areas in large cities, real traffic tests for pollutant emissions and fuel consumption have been carried out in Madrid city centre. Emission concentration and car activity were simultaneously measured by a Portable Emissions Measurement System. Real life tests carried out at different times and on different days were performed with a turbo-diesel engine light vehicle equipped with an oxidizer catalyst and using different driving styles with a previously trained driver. The results show that by reducing the speed limit from 50 km h-1 to 30 km h-1, using a normal driving style, the time taken for a given trip does not increase, but fuel consumption and NOx, CO and PM emissions are clearly reduced. Therefore, the main conclusion of this work is that reducing the speed limit in some narrow streets in residential and commercial areas or in a city not only increases pedestrian safety, but also contributes to reducing the environmental impact of motor vehicles and reducing fuel consumption. In addition, there is also a reduction in the greenhouse gas emissions resulting from the combustion of the fuel.

scholarly journals Ways to solve the problems of individual vehicle storage in new residential areas of large cities

2021 ◽  
Vol 341 ◽  
pp. 00031
Author(s):  
Ruslan Spodarev ◽  
Vladimir Belokurov
Keyword(s):  
Integrated Approach ◽  
Residential Development ◽  
Residential Areas ◽  
Large Cities ◽  
Optimal Ratio

The article discusses ways to solve the problem of storing individual cars. The methodology for calculating the area for garages in the existing residential development, as well as in the formation of new residential areas. The analysis of the patterns in the formation of the optimal ratio between the areas of residence of the population and places of storage of cars is carried out. An integrated approach is proposed to ensure the satisfaction of car owners in places where cars are stored.

scholarly journals How did the ‘state of emergency’ declaration in Japan due to the COVID-19 pandemic affect the acoustic environment in a rather quiet residential area?

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Kimihiro Sakagami
Keyword(s):  
Noise Level ◽  
Residential Area ◽  
The State ◽  
Residential Areas ◽  
Noise Levels ◽  
Noise Sources ◽  
State Of Emergency ◽  
Acoustic Environment ◽  
Large Cities ◽  
City Centres

The COVID-19 pandemic caused lockdowns in many countries worldwide. Acousticians have made surveys to monitor how cities became quieter under the lockdown, mainly in central areas in cities. However, there have been few studies on the changes in the acoustic environment due to the pandemic in the usually quieter residential areas. It may be expected to be different from the effect in ‘originally noisy’ areas. Also, the effect could be different in Japan, because the ‘state of emergency’ declaration there was different to lockdowns elsewhere. Considering these circumstances, this article reports the results of noise monitoring and makes some observations on the acoustic environment in residential areas far from city centres, to provide an example of how the acoustic environment was affected by the state of emergency declaration due to the COVID-19 pandemic in Japan. The results showed that the reduction of noise levels was somewhat less than that reported in large cities. Also, comparing the results after the cancellation of the state of emergency, the noise level increased again. However, observations of noise sources imply that a possible change in human behaviour may have also affected the acoustic environment.

scholarly journals Building Extraction from High Resolution Space Images in High Density Residential Areas in the Great Cairo Region

2011 ◽  
Vol 3 (4) ◽  
pp. 781-791 ◽  
Author(s):  
Ibrahim F. Shaker ◽  
Amr Abd-Elrahman ◽  
Ahmed K. Abdel-Gawad ◽  
Mohamed A. Sherief
Keyword(s):  
High Resolution ◽  
High Density ◽  
Building Extraction ◽  
Residential Areas ◽  
Space Images
Sign in / Sign up

Export Citation Format

Share Document