Cities in Transformation: Smarter Reconstruction in Historic City Centres

2021 ◽  
pp. 493-507
Author(s):  
Donato Di Ludovico
Keyword(s):  
Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1648 ◽  
Author(s):  
Tiago M. Ferreira ◽  
Pedro P. Santos

Historic city centres near watercourses are a specific type of urban area that are particularly vulnerable to flooding. In this study, we present a new methodology of flood risk assessment that crosses hazard and physical vulnerability information. We have selected the Historic City Centre of Guimarães (Portugal), a UNESCO Heritage Site, for developing and testing the defined methodology. The flood hazard scenario was obtained through the hydrologic–hydraulic modelling of peak flows with a 100-year return period, which provided flood extent, depths, and velocities. A decomposition of the momentum equation, using depth and velocity, allowed reaching a final hazard score. Flood vulnerability was assessed through combining an exposure component and a sensitivity component, from field-collected data regarding wall orientation, heritage status, age, number of storeys, condition, and material of buildings. By combining the results of the hazard and vulnerability modules in a risk-matrix, three qualitative levels of flood risk were defined. The individual and crossed analysis of results proved to be complementary. On one hand, it allows the identification of the more relevant risk factors—from the hazard or vulnerability modules. On the other hand, the risk-matrix identified other buildings with a high risk that otherwise would remain unnoticed to risk managers.


2022 ◽  
Vol 14 (1) ◽  
pp. 472
Author(s):  
Setyo Nugroho ◽  
Junyi Zhang

This study aims to assess a sense of place in the context of an Indonesian city through real-time walking experience. With rapid urban development, the cityscape may change, leading to a lack of a sense of place. Here, the sense of place was measured by utilizing individual reactions to different urban design qualities and perceptual qualities during walking. Previous methods on visitors’ evaluation of places, walking experience and photographing, were adapted by adding two more stages: in-depth interviews and a workshop, obtaining participants’ opinions and behaviours. The analysis results showed that the participants experienced the sense of place through physical and non-physical features corresponding to walking speed. While the old buildings and ornament details attracted participants’ attention, this study demonstrated that the two-way interaction with residents also strengthened the sense of place. The major finding was that the participants were concerned about improving pedestrian infrastructure and the conservation of old buildings in the area. With the assistance of in-depth interviews and a workshop, participants’ perspectives were visually reflected in a comprehensive way. This study may be helpful for urban planners to manage the sense of place in historic city centres under the pressure of rapid urban development.


2018 ◽  
Vol 31 ◽  
pp. 698-710 ◽  
Author(s):  
Enrico Quagliarini ◽  
Gabriele Bernardini ◽  
Silvia Santarelli ◽  
Michele Lucesoli

2019 ◽  
Vol 11 (16) ◽  
pp. 4483 ◽  
Author(s):  
Ali Tanrıkul ◽  
Şebnem Hoşkara

For thousands of years, cities have evolved with changing needs. Cities are like living organisms, which are exposed to transformations as a result of changing needs and requirements. City centres are one of the attractive, essential, and vital parts of the city that are also affected by these changes. Specifically, historic city centres, which refer to the origins of the city, will be discussed within this context. Urban design aims to shape our cities with better quality and provide better places for everyday life. In addition, urban regeneration can be utilized as generic public policy for solving problems and providing physical improvements for these cities. Although the problems that emerge in each city are similar, sometimes they change circumstantially. As a result, the planning, implementation, and management of urban regeneration projects as well as their sustainability can produce serious complications. This article focuses on the process of urban regeneration, historic city centres, and the Mediterranean region and aims to develop an applicable regeneration framework for historic city centres limited to the Mediterranean region. First, the main problems of these cities are described. Next, characteristics of historic city centres and associated problems of the Mediterranean region are explained. Subsequently, the concept of urban regeneration is clarified, and the processes involved are discussed. Finally, an applicable urban regeneration framework for historic Mediterranean city centres, developed by the authors, is explained with the goal to reduce social segregation while incorporating the contributions of views from both local inhabitants and stakeholders in the process. The methodology of the overall research presented in this article is mainly based on a critical review of primary and secondary documents from the literature through a comparative and exploratory approach.


2011 ◽  
Vol 374-377 ◽  
pp. 248-251
Author(s):  
Bo Liu ◽  
Zong Gang Liu ◽  
Jianhui Yang

As an increasing numbers of people move into the cities, the need of places for community in such cities is required. Urban open spaces have already take a huge part in people`s daily life. It is expected that a high quality of places can be created for people. The urban open spaces design played an important role in modern urban design and planning. Squares and plazas developed a lot in city centres. But there is a problem that it is hard to build new open spaces in the historic city centres as the spaces is very limited. The genesis of this research came from two distinct sources. First, there are a number of factors which influence urban design. The surroundings, memories and the experiences of the city for people can be defined as contexts. ‘Contexts’ constrain and inform all areas of urban design action. Second, there was a need for people to have a special pleasure from the sight of public spaces. With a focus on the urban design, the main factors presented here are the open spaces. The role and meaning of the elements that play in urban design and the ways in which they are designed, developed and detailed are the most important elements for landscape architects to research and consider. In the end of this paper, the author developed a series of general design process and some design ideas as basis of design model of urban open space for the urban history context extending.


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