The service capacity of urban public open spaces is an important indicator of the justness and soundness of the allocation of public space resources,such as parks and green spaces,in the process of urban development.I...The service capacity of urban public open spaces is an important indicator of the justness and soundness of the allocation of public space resources,such as parks and green spaces,in the process of urban development.Improving the service capacity of urban public open spaces is conductive to healthy,sustainable urban development.In this study,taking Shengyang City,China as a case study,a Gaussian-based two-step floating catchment area method(2 SFCA)is used to calculate an accessibility index and identify residential areas with a poor accessibility to urban public open spaces.Then,a particle swarm algorithm(PSA)is used to optimize the locations of new open space developments.Finally,the optimization results are verified using the analytic network process(ANP).The results show that the service capacity of public open spaces in the center of Shenyang City(covering six districts)is relatively low and exhibits an uneven spatial distribution.In the service scope of the existing urban public open spaces,the accessibility for 48.6%of the residential estates is moderately poor or poor.The layout is optimized when the number of optimization points is set to 8.These points are mainly located in old town areas such as the Tiexi,Huanggu,and Dadong districts.The optimization increases the green space area accessible by motor vehicles(60 min),bicycles(60 min),and walking(30 min)by 4.67%,5.38%,and 8.03%of the study area,respectively.Finally,green space planning recommendations are offered from two perspectives:spatial layout and transport system optimization.展开更多
The feasibility of city living with nature as a way to restore the balance between human uses and natural processes is the focus of this paper about the city of Maringa in Southern Brazil. This urban form, a planned n...The feasibility of city living with nature as a way to restore the balance between human uses and natural processes is the focus of this paper about the city of Maringa in Southern Brazil. This urban form, a planned new town founded in 1947 upon a previous, comprehensive British land-development scheme, originally offered a friendly interaction between urban settlement and nature. Hence, this paper outlines how open spaces can be enhanced as an ecological structure, bringing parks, squares, gardens and urban farming into a productive system, both for nature＇s and for people＇s sakes. Following a morphological study, the proposed ecological structure will maintain ecological processes within the urban grid and help to preserve historical and social values, by linking a wide variety of natural and restored ecosystems and landscape features. The adoption of this kind of ecological planning will certainly result in an increase of the urban landscape quality, changing actual planning paradigm and preventing the city from environmental quality decrease.展开更多
Depok has a big opportunity to become an age friendly city (AFC) because it has a large number of posbindu, increased elderly population, it does not have yet the pension security for the elderly people, and it does n...Depok has a big opportunity to become an age friendly city (AFC) because it has a large number of posbindu, increased elderly population, it does not have yet the pension security for the elderly people, and it does not have yet the number of infrastructure and social facilities needed for the elderly. Before Depok City becomes an age friendly city, an assessment of the eight-dimensional indicators of AFC had been carried out by a team of UI researchers from Center of Ageing Studies in collaboration with the Institute for Survey METER in March 2013. One of the main finding was the presence of the three indicators of AFC in Depok which still lack, they are buildings and open space, housing, and civil participation and employment. The purpose of the study was to assess the public’s opinion on the three indicators of AFC that still lack in Depok. The study shows that the majority of people and government as stakeholder assess that Depok is ready to become AFC as long as supported by the government of Depok City with the good coordination with related institutions for the budget and programs prioritizing the interests of the elderly. Moreover, the existence of Komda (Comission Area) of Elderly Depok City can support the establishment of a friendly city towards the elderly. The community prefers to choose the indicators of buildings and open spaces as a top priority for elderly-friendly city rather than chooses the indicators of housing and civil participation and employment for the elderly people. Therefore, hopefully Depok City Government with related institutions can build the building which is elderly-friendly as well as AFC socialization to the government and private sectors in order to achieve rapid implementation of Depok as an AFC.展开更多
There is an urban design problem that outdoor public spaces are not used for long periods of time within a year due to coldness and snow cover in cities with severe winter climates （winter cities）. Therefore, an urb...There is an urban design problem that outdoor public spaces are not used for long periods of time within a year due to coldness and snow cover in cities with severe winter climates （winter cities）. Therefore, an urban design that promotes activities in these spaces is required for winter cities. The purpose of this paper is to clarify the relationship between outdoor environmental conditions and the behaviors of people in outdoor public spaces. This six-month study conducted a field survey in six kinds of public spaces in downtown Sapporo and analyzed the changes of microclimates and sitting behaviors in these spaces. The analysis revealed that sitting behaviors decreased with temperature drops during the cooling period （20 ~C-8 ~C）, that sunlight could suppress the reduction in the number of sitting behaviors, and that wind speed could suppress the reduction in the duration of sitting behaviors.展开更多
基金Under the auspices of the China National R&D Program(No.2017YFC0505704)National Natural Science Foundation of China(No.32101325)+1 种基金Fundamental Research Funds for the Central Universities of China(No.N2011005)Student Innovation Training Program of Northeastern University of China(No.201299)。
文摘The service capacity of urban public open spaces is an important indicator of the justness and soundness of the allocation of public space resources,such as parks and green spaces,in the process of urban development.Improving the service capacity of urban public open spaces is conductive to healthy,sustainable urban development.In this study,taking Shengyang City,China as a case study,a Gaussian-based two-step floating catchment area method(2 SFCA)is used to calculate an accessibility index and identify residential areas with a poor accessibility to urban public open spaces.Then,a particle swarm algorithm(PSA)is used to optimize the locations of new open space developments.Finally,the optimization results are verified using the analytic network process(ANP).The results show that the service capacity of public open spaces in the center of Shenyang City(covering six districts)is relatively low and exhibits an uneven spatial distribution.In the service scope of the existing urban public open spaces,the accessibility for 48.6%of the residential estates is moderately poor or poor.The layout is optimized when the number of optimization points is set to 8.These points are mainly located in old town areas such as the Tiexi,Huanggu,and Dadong districts.The optimization increases the green space area accessible by motor vehicles(60 min),bicycles(60 min),and walking(30 min)by 4.67%,5.38%,and 8.03%of the study area,respectively.Finally,green space planning recommendations are offered from two perspectives:spatial layout and transport system optimization.
文摘The feasibility of city living with nature as a way to restore the balance between human uses and natural processes is the focus of this paper about the city of Maringa in Southern Brazil. This urban form, a planned new town founded in 1947 upon a previous, comprehensive British land-development scheme, originally offered a friendly interaction between urban settlement and nature. Hence, this paper outlines how open spaces can be enhanced as an ecological structure, bringing parks, squares, gardens and urban farming into a productive system, both for nature＇s and for people＇s sakes. Following a morphological study, the proposed ecological structure will maintain ecological processes within the urban grid and help to preserve historical and social values, by linking a wide variety of natural and restored ecosystems and landscape features. The adoption of this kind of ecological planning will certainly result in an increase of the urban landscape quality, changing actual planning paradigm and preventing the city from environmental quality decrease.
文摘Depok has a big opportunity to become an age friendly city (AFC) because it has a large number of posbindu, increased elderly population, it does not have yet the pension security for the elderly people, and it does not have yet the number of infrastructure and social facilities needed for the elderly. Before Depok City becomes an age friendly city, an assessment of the eight-dimensional indicators of AFC had been carried out by a team of UI researchers from Center of Ageing Studies in collaboration with the Institute for Survey METER in March 2013. One of the main finding was the presence of the three indicators of AFC in Depok which still lack, they are buildings and open space, housing, and civil participation and employment. The purpose of the study was to assess the public’s opinion on the three indicators of AFC that still lack in Depok. The study shows that the majority of people and government as stakeholder assess that Depok is ready to become AFC as long as supported by the government of Depok City with the good coordination with related institutions for the budget and programs prioritizing the interests of the elderly. Moreover, the existence of Komda (Comission Area) of Elderly Depok City can support the establishment of a friendly city towards the elderly. The community prefers to choose the indicators of buildings and open spaces as a top priority for elderly-friendly city rather than chooses the indicators of housing and civil participation and employment for the elderly people. Therefore, hopefully Depok City Government with related institutions can build the building which is elderly-friendly as well as AFC socialization to the government and private sectors in order to achieve rapid implementation of Depok as an AFC.
文摘There is an urban design problem that outdoor public spaces are not used for long periods of time within a year due to coldness and snow cover in cities with severe winter climates （winter cities）. Therefore, an urban design that promotes activities in these spaces is required for winter cities. The purpose of this paper is to clarify the relationship between outdoor environmental conditions and the behaviors of people in outdoor public spaces. This six-month study conducted a field survey in six kinds of public spaces in downtown Sapporo and analyzed the changes of microclimates and sitting behaviors in these spaces. The analysis revealed that sitting behaviors decreased with temperature drops during the cooling period （20 ~C-8 ~C）, that sunlight could suppress the reduction in the number of sitting behaviors, and that wind speed could suppress the reduction in the duration of sitting behaviors.
