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Determining the Spatial Boundaries of City-Region for Tehran Metropolis and its Surrounding Area
2016
Sharifzadegan, Mohammad Hossein | Fathi Farzaneh, Amir
The consideration of Tehran metropolis and its soundings areas has been the first one of recent challenges in Iran’s spatial planning which made it possible to develop the concepts such metropolitan region and conurbation. However, it is obvious that there appears to be a much more proper structure due to neo-regionalism and globalization in order to understanding of dynamic nature of Tehran and its surrounding. Nowadays, spatial phenomena have probably influenced by the physical and political boundaries which did not make the functional nature of interactions of these regions. City- region is among concepts that have not received due attention in recent years and was only discussed and presented in academic circles. This is perhaps a result of too much focus on the issues within cities. This paper has tried to present an optimum city-region spatial model that matches the spatial structure of our country as much as possible. After determining the required indexes by using of 85 city points in 250 kilometers distances from Tehran, the spatial boundaries of Tehran city-region is determined through flow analysis and estimations of distance from center and finally, by the using of analytical and adaptive methods the spatial model for Tehran city- region, with two cores and 41 peripheral cities will be presented. It is the functional foot print of Tehran metropolis based on daily and weekly commuting by a spatial logic.
Показать больше [+] Меньше [-]A Study of Effection Factors on the Balance of The Realm of Space, Province of Gilan
2016
Taghvaei, Masoud | Shafaghi, Sirous | Ghaderi, Mohammad Reza
Regional differences and inequality in many countries is a major challenge in the way of achieving balanced development goals, particularly those countries such as Iran which sovereign a large geographical territory. Due to past poor national and focused planning, development and its basis in geographical regions of the country, has revealed significant differences in the development process. Analysis has been done using documentary and survey data collection methods and a combination of quantitative and qualitative analysis. Data were gathered through documents, questionnaires and Delphi techniques. Then in the second stage of Delphi, using the opinions of experts and officials in charge of the study area, cross-impact matrix was completed in order to evaluate the impact of factors on each other in regional imbalances of Gilan province. Then, with the use of analytical techniques and software MicMac, factors related to inequality of Gilan province were studied and by analyzing the effect of variables in the creation of regional imbalances, the key factor ,”spatial one-dimensional development“ was identified and finally appropriate strategies to equilibra in Gilan province were presented.
Показать больше [+] Меньше [-]The zoning of Land demolition of Kerman city bounds due to urban - Industrial development (technogenical desertification) by using GIS
2016
Kazeminiya, Abdolreza | Meimandi Parizi, Sedigheh
In the recent decades, the effect of dry climate of Iran is due to expanding desertification in this country. The countryside of Kerman has selected for this survey. For investigating of amount of deserts generation around this city after geometric and radiometric studying، the image of Landsat ETM + 2009 and aerial photos at a scale of 1: 5000, preparing of basic maps of earth and vegetation covers maps. To estimate of the severity level of desertification in Kerman, The indicator of Urban and industrial development based on IMDPA , that including density of roads and mines, amount of green space and changing to pasture and forest land. After that giving score to this parameters did upon its affect for destroying and desertification.Finally, in GIS software, with using analytic functions required based on IMDPA. Land area were classified in terms of desertification. The results show that the effects of desertification land in Kerman city can be classified to three section، critical , medium and low.
Показать больше [+] Меньше [-]Investigating of Reorganization and Decentralization Strategies of Tehran and Offering the Optimal Pattern
2016
Ziari, Keramatollah | Fotouhi Mehrabani, Bagher | Farhadi Khah, Hossein
The process of proposing solutions to solve the problems of the capital, after undergoing different stages has reached to the law of feasibility study of transmission of the political center of the country and reorganization and decentralization of Tehran. The aim of this study is to address Article one of this law, and offering reorganization and decentralization pattern. The research method is descriptive and analytical and it is an applied research. Data collection was conducted by documents, and survey research. The results suggest that we should discard the first part of this law and replace it with the reorganization and decentralization solutions. Also the results indicate that items including lack of strict enforcement of existing laws, point-wise look to Tehran and not considering the urban area as a whole, lack of attention to the problematic aspects of centralization (economic aspects), lack of simultaneous development of organization and decentralization policies have all weakened the organization and decentralization policies to some extent. In this regard, the list of strategies were derived from literature review extracted and were screened using the Delphi method. Finally, 30 key strategies in the template of reorganization and decentralization pattern of Tehran was approved by Delphi panel members.
Показать больше [+] Меньше [-]Evaluation the Spatial Justice in Distribution of Rural Services in The Counties of Isfahan Province
2016
Afrakhteh, Hassan | Riahi, Vahid | Jalalian, Hamid | Saraei, Soodabeh
Spatial justice with scientific and humanitarian teachings, cause the weaknesses and strengths in different areas. Since most of the allocation and distribution of national and regional resources in the country through focused planning, The present study is an analysis of spatial justice of rural services in the Isfahan province. The research method is descriptive and analytic. The required data were collected through documents. This study, using the 8 Rural Services measures consists of 77 variables was performed. Data were analyzed using SPSS and Excel. Validity of measures confirms using factor analysis and then used as input to numerical taxonomy technic. The obtained results using the GIS software were designed as a map and charts. In this research counties were divided into three groups in terms of distribution of rural services. The results indicated that there is inequality in the distribution of services and showed that rural services are not distributed fairly in the counties of Isfahan province. In other words, in the sparsely populated areas, focused service centers and in more densely populated areas, the lack of service evident. And for rural service delivery in the Isfahan province not pay any attention to important factors such as population.
Показать больше [+] Меньше [-]Presentation of Tourism Regional Development scenarios Based on the Principles of Futures Studies (Case: Hamadan Province)
2016
Zali, Nader | Atrian, Frough
Tourism is an important tool for development in the world. Many countries attention to their policies and programs, to continue the development of Tourism as an effective tool in political, cultural and economic developments. This study discusses the identification of key factors believable and optimal future in the future of Hamadan province's regional tourism. The study, in terms of functional purpose, In terms of type, combination of documentary and survey methods, In terms of nature, Based on new methods of futures studies, analysis and discoveries which uses a combination of quantitative and qualitative models has been done. Given the importance of this research, In this study, Structural Analysis, methods, Scenario Planning and Delphi have been used. The results showed that 14 key factor impressive the future of tourism development in Hamadan province. These factors based on a scenario analysis lead to 41 possible statuses. After analyzing the probable scenarios, 4111 scenarios with low probability, 14 believable scenario and 5 scenarios with high probability in the development of tourism in the Hamadan province were identified. Finally, Article provides strategies for the Hamadan province's tourism development.
Показать больше [+] Меньше [-]Modeling Agricultural Destruction Lands Resulted By Urban Growing in Suburb of Urmia City by Applying an Object Based Image Analysis Approach
2016
Feizizadeh, Bakhtiar | salmani, Saeed
In the present research land use changes modeling in the Urmia city is considered in order to detect changes in agricultural lands. In this regard, Landsat satellite images were used and then the object base processing satellite images was performed by applying the process segmentation and in the next stage, the optimization of scale segmentation and image analysis to its constituent elements, the object basic algorithms according to the physical condition, geometric of each land-use classes were used. During images processing in addition to spectral data, the data in the form of homogeneous, shape and texture (GLCM) were used for land use extraction. The results show that the Urmia city had so many physical expand in the past 31 years so that its area has increased from 7.43% of the total study area in 1363 to 30.75 in 1394. This increase was rectify by the reduction of agricultural lands so that large amount of agricultural lands have been used for construction purposes which has caused land degradation, particularly fertile lands in this area, particularly within the Shahr chay river, Mahabad road, Sero road, Darya road and the road of Salmas.
Показать больше [+] Меньше [-]The Lattice Hexagon Approach Applied in Landscape Degradation Assessment (Case study: Shemiranat County)
2016
Irankhahi, Mehdi | Jozi, Ali
The present study has been conducted on Shemiranat county landscape, using lattice hexagon approach, for the first time, in order to achieve homogeneous units in degradation model. To this aim, with respect to the extent of the studied area, a lattice hexagon composed of 36 units (cells) was created and each grid cell was considered as a sub landscape. Next, ecological vulnerability, degradation agents and their severity was calculated for each cell, using landscape metrics and then classified and standardized based on fuzzy logic. Eventually, according to the obtained degradation coefficients, landscape zoning and analysis was done. Overall, 73 percent of the Shemiranat County was identified as with low degradation area which is developable with paying attention to ecological restrictions and buffers (distance of river valleys, main faults and protected areas). Also, 23 percent and 4 percent of the studied area was determined as need rehabilitation and needs protection, respectively. Using the lattice hexagon as the basis of landscape degradation assessment, in addition to more accurate calculation of metrics and estimation of the degradation coefficient, separately for each homogeneous cells, landscape degradation status and future development potential will be determined.
Показать больше [+] Меньше [-]Comparative Study of the First and Second Generations of the New Towns Development: The Case of the South Korea
2016
Arbab, Parsa | Basirat, Maysam
This article, with a focus on the change and transformation process of the approaches and trends affecting the new towns policy, scrutinizes the first and second generations of the new towns in reference to the South Korea as a case study. The first generation of new towns development in South Korea is associated with the rapid growth of urbanization, industrialization and subsequently economic increase of this country. Lack of housing and inadequate housing supply, formation and growth of the informal settlements especially in connection with Seoul, and the subsequent centralization in the Seoul metropolitan area are the main and significant urban challenges of South Korea in this period. The second generation of new towns has been planned first with the aim of housing supply as their main function in the capital region. These cities are the result of approach that follow the qualitative, gradual and planned development in the form of small scale but multiple projects compared to the past. Decentralization of Seoul and Seoul metropolitan area, integrated regional development, and ultimately the balance of South Korea’s national territory are the key purposes of this process, in terms of spatial planning.
Показать больше [+] Меньше [-]The Determination of Optimal Areas for the Development of New Towns and Cities Using Efficient Models (Case Study: Tehran Province)
2016
Pour Ahmad, Ahmad | Farhadi, Ebrahim | Ghorbani, Ramin
One of the critical issues related to sustainable urban in twenty-first century, is the growth and development of the city in space and on this basis, the civil management was forced to think about urban development. Tehran metropolis with its growing, developing immersive and without physical, environmental instability surrounding the statue has arrived. One of the ways for decentralization and redistribution of the population and facilities thought in spatial planning is the, urban development and building new settlements around the metropolis which must meet the criteria of environmental, social, economic, physical, geographical distance, etc. be considered in studies not lead to environmental catastrophes. The method of this research is descriptive-analytical and its target is applied using the K-means and FCM's clustering methods to check this important. To evaluate the quality of the environment and determine optimal sites for the development the new cities in Tehran province in 3 pm base (man-made environment, social environment, economic environment and the natural environment) with a total of 22 indexes are used. The analysis and processing of indices for the paper two environments Matlab2013 and Arc GIS software was done. The results of clustering using FCM and overlay in the form of maps showing which areas are suitable for urban development in the East and South of Tehran. Also the plan was prepared by K-means that we can be used to provide strategies and integrated management areas.
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