Study of the experience of new town planning, construction,and management in Singapore and the experience for Nanjing

Author(s):  
Haiming Luo ◽  
Yuanming Zhang
Keyword(s):  
2021 ◽  
Vol 13 (3) ◽  
pp. 512
Author(s):  
Jairo Alejandro Gómez ◽  
ChengHe Guan ◽  
Pratyush Tripathy ◽  
Juan Carlos Duque ◽  
Santiago Passos ◽  
...  

With the availability of computational resources, geographical information systems, and remote sensing data, urban growth modeling has become a viable tool for predicting urbanization of cities and towns, regions, and nations around the world. This information allows policy makers, urban planners, environmental and civil organizations to make investments, design infrastructure, extend public utility networks, plan housing solutions, and mitigate adverse environmental impacts. Despite its importance, urban growth models often discard the spatiotemporal uncertainties in their prediction estimates. In this paper, we analyzed the uncertainty in the urban land predictions by comparing the outcomes of two different growth models, one based on a widely applied cellular automata model known as the SLEUTH CA and the other one based on a previously published machine learning framework. We selected these two models because they are complementary, the first is based on human knowledge and pre-defined and understandable policies while the second is more data-driven and might be less influenced by any a priori knowledge or bias. To test our methodology, we chose the cities of Jiaxing and Lishui in China because they are representative of new town planning policies and have different characteristics in terms of land extension, geographical conditions, growth rates, and economic drivers. We focused on the spatiotemporal uncertainty, understood as the inherent doubt in the predictions of where and when will a piece of land become urban, using the concepts of certainty area in space and certainty area in time. The proposed analyses in this paper aim to contribute to better urban planning exercises, and they can be extended to other cities worldwide.


2012 ◽  
Vol 36 (1) ◽  
pp. 38-53 ◽  
Author(s):  
Liutauras Nekrošius

Within the whole town scale, the heritage objects of Vilnius contemporary architecture represent a relatively small (40 out of more then 2,500), but rather significant – due to their typological composition (most important public objects and districts of the city) and geographical location (centers and sub-centers) - group of buildings highly influencing the image of the capital city. The group encompasses the town-planning objects (two residential districts, students’ campus in Saulėtekis Ave, the New Town Center and complex of the Parliament buildings), architecture objects (15 public use buildings, 3 public interiors and 6 apartment houses), as well as historical objects (1 bridge, 1 public use and 1 residential buildings). The group of protected heritage objects was mostly developed during the occupation period, in the 1980-ies, according to the legislation of the time, prevalent political and artistic trends, as well as conditions of the planned economy and state (public) ownership. Following the essential transformations in the socio-cultural context, this group has been failed to reevaluate in a systemic way, without any new structure and conservation concept being formed in compliance with the new conditions. This has inflicted some damage to expression of the public image of the city and understanding of its values, needless to say that highly valuable buildings have been just left to fade away. Considering that it is highly relevant to maintain the most valuable architectural objects of the second half of the 20th century for future generations, it is essential to perform a physical status and use monitoring of heritage objects of contemporary architecture, update the data of heritage stocktaking, identify the boundaries of authorship rights (copyright) and real estate cultural heritage protection, estimate values of the protected objects, reconsider the ways of management and coordinate the processes of document revision and building renovation/ transformation. Santrauka Šiandieninėje Lietuvoje vykstantis sovietinių metų modernizmo architektūros paveldo objektų apsaugos procesas ir taikomos priemonės straipsnyje nagrinėjami remiantis Vilniaus miesto pavyzdžiu. Analizuojami po 1961 m., t. y. formalaus amžiaus cenzo neatitinkantys, Vilniuje įgyvendinti architektūrinio ir urbanistinio vertingųjų savybių pobūdžio nekilnojamojo kultūros paveldo objektai ir vietovės. Tokių kūrinių Kultūros vertybių registre įvairiais skaičiavimais yra apie 40. Ši grupė XX a. II-ojoje pusėje formuota kaip raiškiai atspindinti laikotarpio architektūrinės kūrybos tendencijas bei tuometes politines nuostatas, tačiau po 1990 m. iš esmės nerevizuota, šiandien dėl pakitusių sociokultūrinių ir ekonominių sąlygų praranda turėtą artikuliaciją. Tai lėmė ir skirtingą objektų fizinę būklę. Straipsnyje siekiama atskleisti aktualiausias problemas, susijusias su kūrinių saugojimu, su įvykusiais objektų ir vietovių pakitimais. Svarstomos galimos tolesnės saugojimo kryptys, būdai. Bandoma formuluoti svarbius konceptualiuosius ir vertybinius klausimus, autoriaus manymu, būtinus kelti platesnių profesinių ir mokslinių diskusijų lygmeniu.


1995 ◽  
Author(s):  
Helena Zemankova ◽  

The history of the European towns is a history of their successful periods, new town-planning solutions with redevelopments and developments of objects, extensions to the existing buildings or their new functional uses.


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