Urban Planning
Seyyed Jamal Seyyed Hashemi; Hamidreza Jayhani
Abstract
In the second half of the past century, urban development programs, including master and comprehensive plans, have led to extensive intervention in ancient cities, while the construction of streets had already led to substantial changes therein. An examination of the interventions indicates their inefficiency ...
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In the second half of the past century, urban development programs, including master and comprehensive plans, have led to extensive intervention in ancient cities, while the construction of streets had already led to substantial changes therein. An examination of the interventions indicates their inefficiency in solving urban problems. At the same time, these interventions have led to new issues, including a lack of integrity in the historic urban areas and their fabrics. In this article, the impact of the new streets in the Sultan Mir Ahmad neighborhood in the city of Kashan, Iran was investigated. The process of urban changes in Kashan was organic until the early 20th century, limited to areas around the heart of the city, the historic bazaar, and the governmentcitadel. Subsequently, the pattern of urban development changed, and construction of straight, long streets was prioritized in line with the growing trend of modernization and the expansion of automobile use. The two streets of Fazel Naraqi and Alavi have been constructed with an interval of about two decades near the Sultan Mir Ahmad neighborhood. One is located to the north of the neighborhood, and the other separates a part of the area from its larger part. This article sought to study how the two streets influence the spatial structure of the Sultan Mir Ahmad neighborhood. For a thorough analysis of the changes that have occurred, the space syntax method was used. Therefore, axial maps of Kashan were provided for three periods: the 1920s, 1960s, and 2010s. Then, the area under investigation was analyzed using integration, depth, and choice as indicators. The results demonstrated an enhancement in global integration as a result of the construction of the Fazel Naraqi and Alavi streets. It should be noted, however, that the impacts of the two streets are different. Alavi Street has had a greater influence due to its proximity to the center of the neighborhood and intersection with its main paths. Subsequently, it was found through an investigation of the local integration and choice indicators that the center of the region had lost its original position, and that Alavi Street had come to be known as the most crowded, most accessible route in the region as the new center of the urban area, with the old heart of the neighborhood turned into a sub-center. In fact, two events have occurred along with the emergence of the development plans and construction of straight streets at the heart of the fabric. Firstly, the construction of streets nearthe neighborhood intersecting its major paths has led to an increase in accessibility and integrity and a decrease in the depth of the urban area. At the same time, however, part of the neighborhood that is adjacent to new communication routes has experienced increased permeability and accessibility. This has caused the inner parts of the neighborhood, including the historic center, to lose their positions in the urban spatial structure and turn into sub-centers.
Urban Design
Mozhgan Jafari; Bahram Siavashpuor; Abasalt Askari
Abstract
Plenty of research has been conducted worldwide on the notion of segregation and the factors effective on it. Globalization, economic crises, rise and fall of governments, and failure to invest in the housing sector are some of the major factors that have made segregation severer in cities. The current ...
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Plenty of research has been conducted worldwide on the notion of segregation and the factors effective on it. Globalization, economic crises, rise and fall of governments, and failure to invest in the housing sector are some of the major factors that have made segregation severer in cities. The current conditions of segregation and discriminatory behavior indicate the potential for economic growth without exploitation, including human resources and social and economic communication. Cities have turned into more of places where phenomena such as extreme poverty, social harm, and social segregation are concentrated. As a term, segregation, which denotes separation of some individuals in a group from others, is a major urban problem that jeopardizes integration in the city, and prevents it from functioning properly as a single whole. A variety of approaches have been adopted to confront segregation, including the analytical approach adopted in this research to investigation of segregation from environmental, physical, and spatial aspects. The theoretical framework of the research for the study of this urban problem involves the theory of space syntax examined from the perspective of urban space configuration. The theory is based on the idea that there is mutual interaction between the physical and social structures of the city. This research involves a case study of a district in the city of Sabzevar, Iran known as Kuye Golestan, and is aimed at reducing social segregation by identifying its physical structure and presenting solutions for its improvement. The investigation also seeks to assess the effects of syntactic variables on non-syntactic parameters to help obtain a specific classification of the factors with the greatest impacts on the physical structure. This is an exploratory study with a hybrid method, where both quantitative and qualitative methods are used for answering the research questions. The qualitative method was implemented through a field study using observation as a technique and a checklist as a tool, and the quantitative method was implemented through a spatial analysis of the axial lines in the UCL Depthmap software environment. The syntactic variables were assessed as independent ones, and the non-syntactic variables as dependent ones, and the relationships between them were finally evaluated using multivariate linear regression analysis in SPSS. The results of the study demonstrated that there were significant relationships between the syntactic variables and lighting, landscape, noticeable corners, convenience, valued elements, entrances and openings, building quality, and building age, in order of priority. On that basis, maximal changes in the physical structure are expected to be achieved through changes made in the above variables, which would lead to changes in the social structure.
Slum Settlements
Saeid Alitajer; Pooria Saadativaghar; Mohammad Bashir Robati; Ahmad Heydari
Abstract
In recent years, for reasons such as population growth, increased rural migration, and the migrants’ financial inability to afford housing, the host cities are facing the problem of illegal settlements that are built densely without observing the principles of construction. These are usually known ...
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In recent years, for reasons such as population growth, increased rural migration, and the migrants’ financial inability to afford housing, the host cities are facing the problem of illegal settlements that are built densely without observing the principles of construction. These are usually known as informal settlements which face many problems. One of the problems is the lack of social spaces that could act as the pillar of urban life. The issue of socialization and social interactions has been neglected in marginal and informal urban contexts, but it is more important that than in other contexts. It is because these contexts are in fact one of the most prominent manifestations of urban poverty in most Iranian cities with migration inflow. The promotion of socialization in these informal settlements, which are a part of the city’s body, is one of the main goals for increasing public welfare and citizens’ peace through the provision of their social needs. In recent years, hybrid studies have considered the relationship between cognitive maps and spatial configuration in assessing the shape of the constructed environment, but few studies have focused on adapting the findings of space layout approach by comparing cognitive maps when studying and measuring social behaviors of citizens in one of the most problematic urban contexts, i.e. informal settlements. This is an innovation in this research, an applied area and a step forward in the field of urban psychology, which can help urban planners and decision makers to identify and improve the morphology of more sociable urban neighborhoods. The present study seeks to investigate the effect of the physical-spatial characteristics of these settlements on sociability by examining the neighborhoods of Hesar and Dizaj in Hamedan. In the first step, the related literature and theoretical concepts were reviewed by library research and consulting with valuable sources on spatial configuration, socialization, and informal settlements. In the second step, the maps of the two neighborhoods were simulated in the Space Syntax software and analyzed formally and morphologically as follows. In the analysis of research data, in line with the natural motion theory, the role of spatial configuration was examined in the formation of behavioral and social patterns (in particular, socialization behavior). In fact, this applied study is based on a mixed methodology. In the first step, quantitative techniques were used along with the theory of natural motion, the theory of space syntax, as well as Arc GIS and UCL Depth Map software packages to analyze spatial configuration and its role in the social behavior of citizens with the aim of specifying the physical-spatial factors which influence sociability in urban spaces. The next step aimed at determining the validity and reliability of the results. In this step, the quantitative results were reconsidered by means of the qualitative method of cognitive maps. According to the findings, spatial configuration may affect the sociability of informal settlements through five indicators, namely, control, connectivity, integration, depth, and legibility. It may also affect people’s attendance, motion, face-to-face contact, and conversations (which are the major prerequisites of the formation of social interactions). Our analysis of the abovementioned informal settlements shows that the maps of the quantitative method of space syntax almost overlap with the qualitative cognitive maps. A comparison between the two neighborhoods indicates that the tree-like and continuous space configuration of Dizaj creates a motion pattern that leads to social interactions in the middle parts of the neighborhood whereas the shrub-like configuration in Hesar distributes the patterns of motion and social behavior all over the neighborhood and leads to more desirable social effects.
