Urban Planning
Manouchehr Tabibian; negin mozafari
Abstract
Geographical location and seismic records of many Iranian cities, including Tehran, draw attention to the vulnerability to earthquake hazards in various fields and specialties. Due to its nature, urban planning examines this issue in the urban fabrics. In line with this, the present study investigates ...
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Geographical location and seismic records of many Iranian cities, including Tehran, draw attention to the vulnerability to earthquake hazards in various fields and specialties. Due to its nature, urban planning examines this issue in the urban fabrics. In line with this, the present study investigates the texts and documents related to the earthquake and the role of urban planning in reducing its effects in terms of safety issues of settlements as well as crisis management. The residential fabric planning and its dimensions and features (including land use, plotting, texture formation, density, communication network, open space, service centers), as interfaces between the residential fabric and vulnerability, and thus the linkage between crisis management in these contexts and urban planning provides an operational model for earthquake vulnerability assessment of the residential areas in the 6th District of Tehran. This model is based on two important issues related to earthquake: the destruction rate and the number of human casualties, divided accordingly into two categories of factors and sub-factors. Based on this model, indicators were determined to study the vulnerability level. The physical resistance index of the fabric was extracted from the first category of the model sub-factors and the post-crisis fabric accountability index was extracted from the second one. Based on these 15 indicators, the vulnerability of the 6th District of Tehran was investigated separately for the residential neighborhoods. The vulnerability of residential neighborhoods was evaluated based on the values of evaluation factors extracted using the AHP method. Finally, the goals, strategies and policies needed to reduce the vulnerability according to the coefficient of significance were obtained separately for 7 neighborhoods using the same method. Based on the results, the following measures can be effective in promoting the safety of neighborhoods in the 6th district against earthquakes: setting objectives for increasing the physical strength of the fabric in order to reduce the destruction rate and increase the fabric efficiency in post-crisis response and relief efforts to reduce human mortality, and adopting strategies for increasing resistance in residential buildings and to strengthen the role and efficiency of open spaces, creating and strengthening an effective access network appropriate for the population, and controlling and guiding demographic indicators. In general, the proposed solutions are developed in five categories: the general form of residential fabric (segmentation, distribution, neighborhood...), green spaces and public open spaces, access networks, population density, and construction monitoring and supervision. Finally, the spatial priority of the implementation of proposed policies for neighborhoods, as well as the priority of policy implementation in each neighborhood is determined to look at the developed goals and strategies more efficiently.
Urban Planning
negin mozafari; bita latifi; naser barakpour
Volume 5, Issue 17 , February 2016, , Pages 77-92
Abstract
Residential satisfaction has been a major and popular research topic for the following reasons. First, individual's evaluations of housing and neighborhoods determine the way they respond to residential environment and form the basis for public policy feedback. Second, residential satisfaction is recognized ...
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Residential satisfaction has been a major and popular research topic for the following reasons. First, individual's evaluations of housing and neighborhoods determine the way they respond to residential environment and form the basis for public policy feedback. Second, residential satisfaction is recognized as important components of an individual's quality of life. Furthermore, high satisfaction among residents encourages them to stay on and induces others to move in, and low satisfaction with the neighborhood environment urges current residents to move out.
On the other hand, although physical characteristics of housing units are known to be very effective in the residential satisfaction rating by many scholars, it should be noted that the dwelling unit itself is not the only factor of satisfaction but it is only a subsystem of the whole residential livability system. In this sense, humans interact with multiple components in their living environment, and continuously influence the environment and are affected by it. This interaction alters an individual’s feeling toward their residential environment. thus, this interaction can be examined in the form of a system that includes residential units, neighborhood and neighbors. In regards to neighborhood satisfaction, although some researches find that the physical characteristics are the most important factors and planners support the importance of physical characteristics, residents consider social factors more important in judging a neighborhood. The current study assesses the level of residential satisfaction in two neighborhoods of Tehran and compares them to create a basis for evaluating urban policies and decisions in recent years and shows the effectiveness of different factors on the satisfaction of residents of different neighborhoods by comparing them. For this purpose, the operating model to measure satisfaction was derived by examining studies of different researchers in the form of approaches (including the belief-affect approach, the commitment approach and the availability approach), factors (individual's characteristics, characteristics of residential environment, feeling and perception of residents etc.) and models (Amerigo model, comparing the level of satisfaction in culturally homogeneous and heterogeneous neighborhoods model etc.). In the proposed model, attention has been paid to all three levels of person, dwelling unit and residential environment and factors which affect satisfaction have been classified under five categories: objective criteria related to the individual, objective criteria related to the environment, objective criteria related to the dwelling unit, subjective criteria related to the individual and subjective criteria related to the environment through a survey questionnaire. Satisfaction levels of residents of neighborhood 1 (located in region three of Tehran municipality) and residents of neighborhood 2 (located in region 11 of Tehran municipality) were compared with each other. A total of 100 questionnaires were completed for each neighborhood. Findings of the study show that the highest and lowest satisfaction in neighborhood 1 were linked to the objective criteria related to the dwelling unit and objective criteria related to the environment and in neighborhood 2, to subjective criteria related to the environment and subjective criteria related to the individual. Overall satisfaction in neighborhood 1 (between moderate and satisfied) was higher than neighborhood 2 (between dissatisfied and moderate).
