Atlas of Tehran Metropolis

 

Collaborators

Atlas of Tehran Metropolis

Objectives and Methods:

An Atlas for Tehran's Citizens

Scientific Application of Atlas

Applications of Atlas in Urban Planning

Applications of Atlas in Urban Management

Application of Atlas as a Source of Information for Citizens

Cartography and Data Analysis

Synthesized Maps

 

 

Collaborators

 

Atlas of Teheran Metropolis is realized in Tehran by Tehran Geographic Information Center (Urban Processing and Planning Co., affiliated with the Municipality of Tehran), within the framework of a join research program with the research group "Monde Iranien" (CNRS, University Paris III Sorbonne Nouvelle, INALCO, EPHE) in Paris.

 

Director of Tehran Geographic Information Center

Seyyed Mehdi Moieni

 

Planning and direction

Masserat AMIR-EBRAHIMI, Seyyed Mohsen HABIBI, Bernard HOURCADE, Mohammad-Hassan MOUSAVIZADEH, Shahriar ZARRIN

 

Data Bank

Arezu BARZEGAR, Kavrayaneh Co. (Ruzbeh SHAHRESTANI), Homayun RUDBAND

 

Geographic Data Analysis

Fofo AMETEPE, Hubert MAZUREK (©Cabral, IRD Montpellier)

 

Design and Cartography

Reza ALIZADEH, Susan AMIRI, Majid BALOUCH, Masumeh GANBARI-NEJAD, Parastoo Mohammadi, Vahid YUSEF-NIA, Kurosh ZAMANI

 

Photos

Shahriar ZARRIN

 

Translation

Masserat AMIR-EBRAHIMI, Nasser baligh, Mohammad-Hadi KHALIL-NEJADI, Shahriar  zarrin

 

Text Editing

Parvaneh mahmoudi, Mohammad-Hassan MOUSAVIZADEH, Farshad Nourian, Shahriar ZARRIN

 

Web Site

Hatratech Co. (Behruz JAMALI, Ali TORKIAN)

 

Administration

Shahnaz BAKHSHI, Marjan JONEIDI, Neda KABIRI, Lyda MOGHADAM, Christine RIVIERE

 

and the whole scientific, technical and administrative personnel of Tehran Geographic Information Center and Monde Iranien

 

Atlas of Tehran Metropolis

The Atlas of Tehran Metropolis is a research project on geographic analysis of Tehran, and its region’s residents, activities and facilities. Although the metropolitan area of Tehran, with a population of more than 12 million, is one of the largest metropolises of the world, no comprehensive research has been carried out on its geographic and historic aspects. Therefore, not enough knowledge about Tehran and its region had been made available. The Atlas of Tehran Metropolis seeks to provide reliable information on demographic, cultural, economic and housing aspects of Tehran’s inhabitants through detailed geographic studies of neighborhood and village levels. This project includes both the City of Tehran and its region, since it is impossible to understand this City without considering those who live in its suburbs and commute back and forth. this Atlas is both an academic research and a practical project, making it possible for academicians and urban planners to compare Tehran with other large cities of the world in order to better understand its features and course of development. On the other hand, this Atlas lays out the issues and concerns of Tehran’s citizens, to be easily considered by the region’s urban managers and political officials.

The term “Tehran Metropolis”, which is used through the book denotes no operational or administrative value, and is only used here in its geographic sense. This term refer to the City of Tehran, according to the official municipal divisions and the Province of Tehran. this Atlas contains information based on the 1996 census of population and housing. This is displayed at two levels: City district and the region. Although other studies have been carried out at the township and regional scale, they are too general to provide a realistic view of Tehran. Also, processing the data at the scale of city blocks (i.e. 35000 blocks in Tehran) or villages (at the Province) could provide useful raw information, but they require collection and processing of data too large to be comprehensible. Therefore, it was decided to analyze the City of Tehran at the neighborhood level (112 neighborhoods). The Province is also analyzed at town (25 towns) and district (63 rural districts) levels. For this reason, in this Atlas, variables are displayed through the use of two different scales and two different maps for the City and the Province. Also, some of the Maps on “Territory” and “History” of Tehran are viewed at different scales, depending on the subject matter.   

 

The Atlas of Tehran Metropolis is the brain-child of two university professors. Dr. Sayyed Mohsen Habibi, Dean of the Faculty of Fine Arts and professor of urban planning at University of Tehran, and Dr. Bernard Hourcade, geographer and senior research fellow at Centre National de la Recherche Scientifique (National Center for Scientific Research, CNRS) in France and former chairman of the Research group Monde Iranien (Iranian World) affiliated to CNRS, University Sorbonne Nouvelle, Ecole Nationale des Langues et Civilisations Orientales (National Institute of Eastern Languages and Civilizations - INALCO) and Ecole Pratique des Hautes Etudes (School for Applied Advance Studies EPHE). This project has been carried out in Iran at the Tehran Geographic Information Center, within a framework of a convention of collaboration between the two Iranian and French institutions. In addition to the authors, the scientific and executive committee directing the project consists of Shahriar Zarrin, architect and director of the project, Dr. Masserrat Amir-Ebrahimi, geographer and Dr. Mohammad Hassan Mousavizadeh who has coordinated all scientific, technical, administrative and executive stages of the project.

Objectives and Methods:

Advanced geographic research for most cities of the world has been carried out before in order to attain knowledge on demographic, cultural, social and economic characteristics as well as developments in housing and urban planning. It is difficult to comprehend the functions of these vast areas and their analysis requires detailed geographic studies at various scales to understand features, developments and problems associated with different neighborhoods and settlement areas.

In this Atlas, statistical data is analyzed at medium scale : at sub-district[1] level for the City of Tehran, and at village (dehestan) and town level for the Province of Tehran to reveal the main features and dynamics of the metropolitan area. This is the first time that Tehran and its metropolitan area are studied in such a scale. Statistical and cartographic methods used for spatial analysis in this Atlas are similar to those of Atlas of Iran (Hourcade B. et al. 1998).

An Atlas for Tehran's Citizens

The main goal of this Atlas is to understand and introduce the Iranian Capital and its Citizens. Hence, for researches, Urban planners and political officials who run this metropolis, and also for those men and women who live in Tehran and its suburbs, this is a useful source of information. While this Atlas is the atlas of Tehran's conurbation, it is also the atlas of its inhabitants. Therefore, the Atlas of Tehran is also an atlas of Tehran's citizens.

Scientific Application of Atlas

Modern world is becoming increasingly urban. Tehran's growth is talking place within an international context which should be understood and the place and role of Iran's capital must be determined in it. Understanding Tehran's social, cultural and urban geography is a necessity for urban planners, geographers, sociologists and historians. Through this knowledge they can perform a comparative study on Tehran Metropolis and compare its transformations with other metropolises of the world. This geographic research on Tehran's conurbation makes it possible for the experts to relate experiences and face the issues in other cities in order to match the methods and mechanisms used in other cities of the world with Tehran's specific conditions and utilize them when needed.

Applications of Atlas in Urban Planning

Tehran's comprehensive plan of 1967 and its reorganization plan of 1991 had provisions for development of this metropolis's resources and facilities such as highways, airport, new suburbs, industrial zones, green spaces, etc. today's urban planning processes require more rigorous research in order to adapt the general plans to the needs of various neighborhoods and their residents. Therefore, geographic and cartographic analyses of Tehran and its urban area are utilized to gain understanding of the City and to make appropriate recommendations and alternatives adaptable to different sections of the City regarding its social, cultural, economic, and structural facilities, and utilities (i.e. water supply, telephone, roads, sewage,…). Atlas is, indeed, a necessary means of urban policy making in different parts of the world.

Aplications of Atlas in Urban Management

For those involved in management of the city and its districts, such cartographic analysis of statistical data allows deeper studies for a general as well as precise issues, hence facilitating the decision making process. The making of this Atlas gives a useful experience for building a comprehensive Geographic Information Systems (GIS), necessary for more detailed management of the City.

Application of Atlas as a Source of Information for Citizens

Inhabitants of Tehran's metropolitan area were mostly born elsewhere or are children of those who were not born in the capital. Thus, their identity is unique, new and constantly changing. The real identity of Tehran's citizens and their social-cultural characteristics, especially in new neighborhoods, are neither well understood nor considered.

For a harmonious development of Tehran, it is necessary to know about the past and present situation as well as the evolution of its neighborhoods such as Lavizān, Gīshā, Farahzād, Abbās abād and nearby cities and suburbs such as Karaj, Eslāmshahr, Varāmin, Hashtgerd and the surrounding rural areas. In the past, individuals had enough knowledge about their village or place of birth; and this Atlas may create a new relationship between the citizens of Tehran and their environment so that they can say "This is my neighborhood."

Cartography and Data Analysis

For easy comparison of data in the Atlas of Tehran Metropolis, each variable is displayed in a single page on two maps at different scales, one for the City of Tehran and one for the Province of Tehran. However, due to significant differences and variations between the City of Tehran and its metropolitan area, most statistical classifications are not similar. In these cases, different colors are used to display the classifications of data relating to the City of Tehran and the province.

The data, in most cases, is classified into less than 5 classes and the class limits are rounded. Statistical classification of data was automatically performed by Cabral® software (developed by Hubert Mazurek, engineer of cartography in the Institute of Research for Development – IRD - Paris) and then rechecked by the authors to make the most important features of each map highlighted. Technically, basic statistical data were first processed in Excel (Microsoft) software and then initial maps and statistical classification of data are produced by Cabral. These maps are later redesigned, using Adobe Illustrator, for sake of publication. In some cases, a variable is displayed in two different forms: relative (percent) and absolute (amount), in which color ranges are used to show percentage and circles display amounts.

Synthesized Maps

Analysis of various data provides a picture of the city's complexity, but this, per se, does not reveal those fundamental characteristics that are necessary for understanding the situation and reality of the Metropolis. Factor analysis makes simultaneous processing of a multitude of variables possible and shows how these variables may combine to identify a neighborhood or how different neighborhoods poses relatively similar characteristics.

For each chapter and as a conclusion, a new typology is shown through factor analysis and classification of different variables together, revealing the dynamic aspect of the reality. Such typology makes it possible to pose new questions and reveals dynamic trends and general tendencies. This, in turn, highlights the need for more profound and vigorous research, including further field studies in order to better understand Tehran's citizens and inhabitants.

Atlas of Tehran Metropolis presents a new image of Tehran which differs considerably with the conventional one. The old North-South contrast is, of course, not obviated, but has become more complex than ever because of simultaneous existence of two other realities: "The center and the periphery". Today a great urban center and new peripheral areas in city scale, as well as several suburbs (with more than a quarter varied of the Capital's population) are formed. Tehran's new suburbs are greatly and are not necessarily inhabited by society's lower classes. These primary analyses indicate that long strides are needed to really understand the dynamics of this metropolis and its residents. this project is the first step in developing a geographic databank on Tehran and its surrounding area, leading to a geographic information system (GIS) for the City of Tehran.

 

Tehran, 2 December 2004

Masserat Amir-Ebrahimi

Sayyed-Mohsen Habibi

Bernard Hourcade

Mohammad-Hassan Mosavizadeh

Shahriar Zarrin

 

 

 

 



1-An administrative division in the city of Tehran which is smaller than a district but consists of several neighbourhoods. It is referred to as "nahiyeh" in Persian.