Pathological Sprawl and Horizontal Expansion of Ahvaz Metropolis Based on COCOSO Model
Subject Areas : Geography and Urban Planning
ZAHRA Nazari
1
,
Dr. saeid kamyabi
2
*
,
Dr. Abbas Arghan
3
1 - Ph.D., Student, Department of Geography, Semnan Branch, Islamic Azad University, Semnan, Iran
2 - Professor of Geography Department, Semnan Branch, Islamic Azad University, Semnan, Iran
3 - Associate Professor, Department of Geography, Semnan Branch, Islamic Azad University, Semnan, Iran
Keywords: sprawl, livability of urban areas, Ahvaz metropolis,
Abstract :
Abestract
The rapid growth of urban populations worldwide, especially in developing countries, poses a significant challenge for governments and planning organizations. In recent decades, among various urban growth patterns, the pattern of sprawling growth has become the dominant spatial development trend in many countries. This study aims to diagnose the pathological sprawl and horizontal expansion of the Ahvaz metropolis. This research is applied and uses an analytical-descriptive method. The data collection method in this research is library-documentary and survey-based. The COCOSO multi-criteria decision-making technique was used to analyze the data. The results obtained from the COCOSO method showed that districts 1 and 8 of Ahvaz city, with the abbreviation B and a final weight of 0.942 in the COCOSO test, have the most favorable conditions. Districts 2 and 6 of Ahvaz city, with the abbreviation D and a final weight of 0.491, have the least favorable conditions and the least impact among other areas compared to the study components. In conclusion, considering the negative consequences of sprawl and to achieve sustainable development and a sustainable urban form, a compact growth pattern is proposed as the future development pattern of the city.
Extended Abstract
Introduction
The rapid growth of urban populations worldwide, particularly in developing countries, poses significant challenges for governments and planning organizations. Currently, 54% of the global population resides in urban areas, and this figure is projected to rise to nearly 68% by 2050. Undoubtedly, the inevitable outcome of this trend is the spatial expansion of cities beyond their borders into surrounding areas to accommodate the growing urban population. In Iran, following the increase in oil revenues in the 1960s and 1970s, rapid urbanization began, leading to an increase in rural-to-urban migration rates. In modern urban management systems, various models have been proposed to address these challenges. It is essential to note that the rapid population increase, coupled with swift urbanization, has created numerous problems for policymakers and urban managers, particularly in cities like Ahvaz. As a newly emerging metropolis due to the establishment of oil industries, Ahvaz currently spans approximately 22,000 hectares, experiencing uncontrolled growth that far exceeds its infrastructural capacity. Factors such as population growth, the development of oil industries, the provincial center's status, urban service establishment, and the attraction of populations from cities and villages in the province have led to unbalanced expansion and the creation of 5,773 hectares of barren land within the city limits due to urban planning regulations and comprehensive urban plans.
Data and Methodology
This research is applied in nature and employs an analytical-descriptive method. The statistical population consists of individuals aged 20 and older in Ahvaz, totaling 804,461, with a sample size of 383 determined using Cochran's formula. Reliability testing was conducted using SPSS software, yielding a Cronbach's alpha of over 0.7 for all variables, indicating good reliability of the instruments. For data analysis, after collecting the necessary data and information, the results and findings were analyzed using the COCOSO multi-criteria decision-making technique.
Results and Discussion
Ahvaz, as a newly emerging metropolis due to the establishment of oil industries, currently covers approximately 22,000 hectares. Its uncontrolled growth has led to a significant population influx, far exceeding its infrastructural capacity. One of the issues contributing to the environmental crisis in Ahvaz is the general public's lack of awareness regarding environmental value and the failure to adopt appropriate policies for utilizing community capabilities and participation. Additionally, the absence of suitable programs and policies for leveraging and directing social capital towards environmental management and planning is identified as a primary cause of environmental degradation and pollution in Ahvaz. This study evaluates the pathology of urban sprawl and horizontal expansion of Ahvaz metropolis concerning the quality of services and livability of urban neighborhoods.
Conclusion
According to the results obtained from the COCOSO method, regions 1 and 8 of Ahvaz have been designated with the letter B, achieving a final weight of 2.94, indicating the most favorable conditions. In contrast, regions 2 and 6 received the letter D, with a final weight of 1.49, representing the least favorable conditions and minimal impact among other areas concerning the studied components. Migration and informal settlement, the integration of villages within urban boundaries, and the connectivity of road networks are among the factors exacerbating urban sprawl. Therefore, managing the physical growth of the city to reduce urban sprawl and prevent land cover changes in the peri-urban area should be prioritized in urban planning and management. By enhancing participation and utilizing individual capabilities, the technical, social, political, and environmental knowledge of the citizens of Ahvaz can be improved. This sense of involvement in their living environment fosters emotional connections with their surroundings, reducing behavioral indifference and increasing environmental oversight, which in turn strengthens individual and social security, preserves and revitalizes cultural and ideological identity, promotes altruism and cooperation, protects the environment, and establishes spatial order and balance, encouraging individuals to strive for desirable personal and collective goals, ultimately motivating marginalized groups to work towards creating a suitable living environment for themselves and future generations.
References English and Persian
- Abdi Ghoruchai., N. (2013). Examination of the sustainability and unsustainability of physical development in mother cities: Case study of Sanandaj, Master's thesis in Geography and Urban Planning, University of Tabriz. ( in Persian)
- Abudu, D.; Echima, R. & Andogah, G (2018). Spatial assessment of urban sprawl in Arua Municipality, Uganda. The Egyptian Journal of Remote Sensing and Space Science, 7 December.
- , S. Alizadeh., M. & Damanbagh., S. (2020). Identification and Analysis of the Urban Expansion Pattern of Ahvaz from 1981 to 2021, Journal of Urban and Regional Sustainable Development Studies, 1(1), 72-89. ( in Persian)
- , M. Pourahmad., A. & Zangeneh Shahrokhi., S. (2016). Assessment of Urban Sprawl Patterns and Identification of Internal Development Areas (Case Study: City of Ahvaz), Environmental Studies of Haft Hesaar, 17(5), 45-62. ( in Persian)
- , M. Pourahmad., A. & Zangeneh Shahrokhi., S. (2017). Evaluation of Barren Lands for Incremental Development (Case Study: City of Ahvaz), Journal of Geographic Space Planning, 7(26), 163-181. ( in Persian)
- , S. (2017). Examination of Physical Development and Presentation of a Strategic Model for Optimal Expansion of the Metropolis of Ahvaz Using RS-GIS. Master's Thesis in Geography and Urban Planning, Shahid Chamran University of Ahvaz, p. 187. ( in Persian)
- , M.M. (2003). Density in Urban Planning: Principles and Criteria for Determining Urban Density; Tehran, Tehran University Press. ( in Persian)
- Banai, R., Depriest, T. (2014). Urban sprawl definitions, data, methods of measurement, and environmental conseqences, journal of sustainability education, Vol 7.
- Bhatta, B. (2010). Analysis of urban growth and sprawl from remote sensing data. Springer Science & Business Media.
- Caves, Roger w (2005). Encyclopedia of the City; New York: Routledge.
- , S.(2023). Urban Livability from the Perspective of the Right to the City: Concepts, Dimensions, and Indicators, Journal of New Ideas in The Geographic Sciences, 1(1), 68-45. ( in Persian)
- Ewing, R. (1994). Characteristics, causes and effects of sprawl: a literature review‖. In: J.Matzluff, et al., (Eds) urban ecology: an international perspective on the interaction between humans and nature. New York: Springer, pp. 519-535.
- Ewing, R. Pendall, R. and Chen, D. (2002). Measuring sprawl and its impact, vol 1 (Technical Report), SmartGrowth America, Washington DC.
- Han, J.(2020). Can urban sprawl be the cause of environmental deterioration? Based On the provincial panel data in China. Environmental Research, 109954.
- Hess, G, R (2001). Just what is sprawl, anyway? "Carolina Planning," a journal of the University of North Carolina Department of City and Regional Planning, Volume 26, Issue2: 2-26.
- Jahanbin, R, and Zarei, R (2012). The Consequences of the Effects of Physical Development Cities on Agricultural Lands and Land Around and Their Sphere of Influence: Case Study: Dare Shahr Township, Sabzineh Analytical Research News Newspaper, the Seventh Year, Number 71, pp 63 – 57.
- Johnson, M.P. (2001). Environmental Impacts of Urban Sprawl: A Survey of the Literature and Proposed Research Agenda, Environ Plann, A 33: 717-735.
- , S.M.A. (2004). An Introduction to Contemporary Urban Planning in Iran; Tehran, Tehran University Press. ( in Persian)
- Khajavi Nia., L. (2023). The Role and Position of Urban Service Management in Metropolitan Neighborhoods: A Case Study of District 2 of Ahvaz, Journal of New Ideas in The Geographical Sciences, 1(1), 69-82. ( in Persian)
- Kwan, R (2010). Urbanization Culture, Translation by Yald Blarak, Tehran: ParhamNaghsh Publications.
- Longman Dictionary of contemporary English (2009). London: Pearson Education Limited Medium-sized cities by spatial metrics based on fused data sets‖. International Journal of Image and Data Fusion.6 (1), pp. 42-64.
- , S. (2003). Sustainable City and Sustainable Urban Development, Journal of Housing Revolution, No. 102. ( in Persian)
- Meshkini, a, Mahdnezhad, H, Parhiz, F (2013). farther up Modernism Patterns in Urban Planning, Tehran, Omid Engelab Publishing Frst Puplication.
- Mohammadian, H, Tavakoli Nia, J et al (2016). Monitoring land use change and Measuring urban sprawl based on its spatial forms the case of Qom city. The Egyptian Journal of Remote Sensing and Space Sciences.
- Mohammadzadeh, R (2007). Study of Environmental Impact of Physical Development on Hastily Cities with the Emphasis on Tehran and Tabriz, Geography and the Area Development Magazine, Number9, pp 93-112.
- , K. Amanpour., S, & Mansouri., F. (2012). Evaluation of the physical development of the city of Ahvaz with an emphasis on sustainability in environmental issues, First National Conference on Geography, Environmental Hazards, and Sustainable Development, Islamic Azad University, pages 11-1. ( in Persian)
- Nengroo, Z. A., Bhat, M. S., & Kuchay, N. A.( 2017). Measuring urban sprawl of Srinagar city, Jammu and Kashmir, India. Journal of Urban Management.
- , M. Saberi Far., R. & Ali Akbari., I. (2020). Comparative analysis of the trend of urban sprawl in the cities of North Khorasan Province (Case study of the cities of Esfarayen and Bojnurd), Journal of Applied Research in Geographical Sciences, 20(58), 300-283. ( in Persian)
- Peiser, R (2006). Decomposing urban sprawl, Town Planning Review,72 (3).
- , M.R. & Ghorbani., R. (2003). Dimensions and Strategies of the Paradigm of Urban Space Consolidation, Modarres University, 7(2), 107-85. ( in Persian)
- , M.R. & Jamkasra., M. (2011). An Analysis of the Uneven Development Pattern in Tabriz, Quarterly Journal of Geographic Research, 25(100), 31-54. ( in Persian)
- Pramanik, M. M. A., & Stathakis, D. (2016). Forecasting urban sprawl in Dhaka city of Bangladesh. Environment and Planning B: Planning and Design, 43(4), 756-771.
- , M.R. & Abbaszadeh., Gh. (2006). Comparative Study of Dispersion and Density in the Metropolises of Sydney and Mashhad, Geography and Regional Development. 6(3), 101-126. ( in Persian)
- Razin, E. and Rosentraub, M. (2000). Are fragmentation and sprawl interlinked? North American evidence‖. Urban Affairs Review, 35 (6), pp. 821-836.
- , M.H. Anvari., F. & Emam Dadi Taremi., M.M. (2021). Spatial Analysis of Urban Sprawl Using GIS and the Helder Model (Case Study: City of Bastak, Hormozgan Province), Journal of Urban Sustainable Development, 2(1), 121-100. ( in Persian)
- , A. (2004). Urban Design in Iran, Green Book Guide for Municipalities (Volume 5), Tehran, Publications of the Organization of Municipalities and Rural Districts of Iran. ( in Persian)
- , F. Nashtaran., M & Dadashpour., H. (2023). Causes and Consequences of Urban Sprawl in the Central Region of Mazandaran Province, Quarterly Journal of Urban Studies, 12(47), 65-78. ( in Persian)
- Shah Hosseini., G. Rafieian., M. & Dadashpour., H. (2024). Analysis of Structures and Mechanisms Influencing Informal Processes Leading to Urban Sprawl in the Greater Tehran Area, Quarterly Journal of Urban Structure and Function Studies, 11(39), 196-157. ( in Persian)
- , M. (2011). Investigation of the causes and factors influencing urban sprawl in the city of Karaj and the presentation of an appropriate model for its control, Master's thesis in Regional Development Planning, Allameh Tabatabai University. ( in Persian)
- , H. (2008). New Perspectives in Urban Geography. Volume 1, Samt Publications, Tehran. ( in Persian)
- Stathakis, D. and Tsilimigkas, G. (2014) Measuring the compactness of European -United Nations (2018). World urbanization prospects the 2018 revision.
- Statistical Center of Iran (2016). Results of the Population and Housing Census, Khuzestan Province, Ahvaz County, Khuzestan Management and Planning Organization. ( in Persian)
- , M. & Asadi., I. (2008). Examination and analysis of the factors of urban sprawl in the spatial development of metropolitan areas, Journal of Art University, No. 2, pages 23-5. ( in Persian)
- , M. & Sarayi., M.H. (2004). Horizontal Expansion of Cities and Existing Land Capacities: A Case Study of Yazd, Quarterly Journal of Geographic Research, No. 73, 187-210. ( in Persian)
- Urban Development and Improvement Organization (2002). Comparative Study of the Development of Five Metropolises in Iran: Realities and Perceptions, Quarterly Journal of Urban Management, No. 10. ( in Persian)
- Vahediyan Beygi, L, Pourahmad, A, Seyfadini, F (2012). Examine the Effect of Physical Growth Tehran on lands of region5, Quarterly Journal of Human Geography the Fourth Year, the First Number, pp 46 – 29
- Wassmer, R. W. (2000). Urban sprawl in a U.S. metropolitan area: ways to measure and acomparison of the Sacramento area to similar metropolitan areas in California and the U.S. CSUS Public Policy and Administration Working Paper No. 2000–03.
- Xiong, C., & Tan, R. (2018). Will the land supply structure affect the urban expansion form? Habitat International.
- Zhang, T (2000). Land Market and Governments Role in Sprawl, Cities, VoL.17, No.2
- Ziyari., K. Mohammadzadeh., H. & Parhiz., F. (2009). Foundations and Techniques of Urban Planning, First Edition, International Chah Bahar University Press, Tehran, pp. 79-76. ( in Persian)
1) آذرشب،صغری (1396). بررسی توسعه فیزیکی و ارائه الگوی راهبردی جهت گسترش بهینه کلانشهر اهواز با استفاده از RS-GIS. پایان نامه کارشناسی ارشد جغرافیا و برنامه ریزی شهری، دانشگاه شهید چمران اهواز، صفحه187.
2) آروین، محمود، پوراحمد، احمد، و زنگنه شهرکی، سعید (1396). ارزیابی زمین هاي بایر به منظور توسعه میان افزا (نمونه موردي: شهر اهواز)، مجله آمایش جغرافیایی فضا، 7(26)، 163-181.
3) آروین، محمود، پوراحمد، احمد، و زنگنه شهرکی، سعید (1395). سنجش الگوى پراكنده رويى و شناسايى حوزه هاى عمل توسعه درونى شهر (نمونه موردى: شهر اهواز)، مطالعات محيطى هفت حصار،17(5)، 45-62.
4) امانپور، سعید، علیزاده، مهدی، و دامنباغ، صفیه (1399). شناسایی و تحلیل الگوی گسترش شهر اهواز در بازده زمانی1400-1360، مطالعات توسعه پایدار شهری و منطقه ای، 1(1)، 72-89.
5) پورمحمدی، محمدرضا و، جامکسری، محمد (1390). تحليلي بر الگوي توسعه ناموزون تبريز، فصلنامه تحقيقات جغرافيايي، 25(100)، 31-54.
6) پورمحمدي، محمدرضا، و قرباني، رسول (1382). ابعاد و راهبردهاي پارادايم متراكم¬سازی فضاهاي شهري مدرس، 7(2)، 107-85.
7) تقوايي، مسعود، و محمدحسين، سرايي (1383). گسترش افقي شهرها وظرفيت هاي موجود زمين، مورد شهر يزد، فصلنامه تحقيقات جغرافيايي، شماره 73، 187-210.
8) خواجوی نیا، لاله (1402). جایگاه و نقش مدیریت خدمات شهری در محلات کلانشهرها مطالعه موردی: منطقه2 شهری اهواز)، نشريه علمي انديشه های نو در علوم جغرافیايي، 1(1)، 69-82.
9) دولتشاه، صدیقه (1402). زیست پذیری شهری با رویکرد حق به شهر: مفاهیم، ابعاد و شاخص ها، نشريه علمي انديشه های نو در علوم جغرافیايي، 1(1)، 68-45.
10) رستمی، محمد حسین، انوری، فردوس، و امام دادی طارمی، محمدمهدی (1400). تحلیل فضایی پراکنده رویی شهری با استفاده ازGIS و مدل هلدرن (مطالعه¬ی موردی؛ شهر بستک، استان هرمزگان)، مطالعات توسعه پایدار شهری، 2(1)، 121-100.
11) رهنما، محمدرحيم، وعباس زاده، غلامرضا (1385). مطالعه تطبيقي سنجش پراكنش و فشردگي در كلانشهرهاي سيدني و مشهد، جغرافيا و توسعه ناحيه اي. 6(3)، 101-126.
12) زیاري، کرامت الله، محمدنژاد، حافظ، وپرهیز، فریاد (1388). مبانی و تکنیک هاي برنامه ریزی شهری، چاپ اول، انتشارات دانشگاه بین المللی چاه بهار، تهران، صفحات 79-76.
13) سازمان عمران و بهسازي شهري (1381). بررسی تطبيقي توسعه پنج كلان شهر ايران، واقعيت ها و تصورات، فصلنامه مديريت شهري، شماره10.
14) سالاریان، فردیس، نسترن، مهین، و داداش پور، هاشم (1402). علل و پیامدهای پراکندهرویی در شهر- منطقه مرکزی استان مازندران، فصلنامه مطالعات شهری، 12(47)، 65-78.
15) سعيدنيا، احمد (1383). طراحی شهری در ایران، کتاب سبز راهنماي شهرداري¬ها (جلد پنجم)، تهران، انتشارات سازمان شهرداري ها و دهياري کشور.
16) شاه حسینی، گلاره، رفیعیان، مجتبی، و داداشپور، هاشم (1403). واکاوی ساختارها و سازوکارهای اثرگذار بر فرآیندهای غیررسمی موجد پراکندهرویی در منطقه کلان شهری تهران، فصلنامه مطالعات ساختار و کارکرد شهری، 11(39) ، 196-157.
17) شكويي، حسین (1387). ديدگاه هاي نو در جغرافياي شهري. جلد 1، انتشارات سمت، تهران.
18) شهسواریان، مهسا (1390). بررسي علل و عوامل موثر بر پراكنده رويي در حوزه ي شهري كرج و ارائه مدل مناسب جهت كنترل آن، پايان نامه كارشناسي ارشد در رشته برنامه ريزي توسعه منطقه اي، دانشگاه علامه طباطبایی.
19) طبیبیان، منوچهر، و اسدی، ایرج (1387). بررسی و تحلیل عوامل پراکنده رویی در توسعه فضایی مناطق کلان شهری، فصلنامه دانشگاه هنر، شماره 2، صفحات 23-5.
20) عبدی قروچای، ناهیده (1392). بررسی پایداری و ناپایداری توسعه فیزیکی در مادرشهر¬ها نمونه موردی: شهر سنندج، پایان نامه کارشناسی ارشد جغرافیا و برنامه ریزی شهری، دانشگاه تبریز.
21) عزیزی، محمد مهدی (1382). ¬تراكم در شهرسازي، اصول و معيارهاي تعيين تراكم شهري؛ تهران، انتشارات دانشگاه تهران.
22) کامروا، سید محمد علی(1383). مقدمه اي بر شهرسازي معاصر ايران؛ تهران، انتشارات دانشگاه تهران.
23) مرکزآمار ایران (1395). نتایج سرشماری نفوس و مسکن، استان خوزستان، شهرستان اهواز، سازمان مدیریت وبرنامه ریزی استان خوزستان.
24) ملکی، سعید(1382. شهر پایدار و توسعه پایدار شهري، مجله مسکن انقلاب، شماره102.
25) نادری، کاوه، امانپور، سعید، و منصوری، فریبرز(1391). ارزیابی توسعه فیزیکی شهر اهواز با تاکید بر پایداري در مسائل زیست محیطی، اولین همایش ملی جغرافیا، مخاطرات محیطی و توسعه پایدار، دانشگاه آزاد اسلامی، صفحات11-1.
26) نوری، مسلم، صابری فر، رستم، و علیاکبری، اسماعیل (1399). تحلیل تطبیقی روند پراکنده رویی شهری در شهرهای استان خراسان شمالی (مطالعه موردی ¬شهرهای اسفراین و بجنورد)، نشریه تحقیقات کاربردی علوم جغرافیایی، 20(58)، 300-283.
27) Abudu, D.; Echima, R. & Andogah, G (2018). Spatial assessment of urban sprawl in Arua Municipality, Uganda. The Egyptian Journal of Remote Sensing and Space Science, 7 December.
28) Banai, R., Depriest, T. (2014). Urban sprawl definitions, data, methods of measurement, and environmental conseqences, journal of sustainability education, Vol 7.
29) Bhatta, B. (2010). Analysis of urban growth and sprawl from remote sensing data. Springer Science & Business Media.
30) Caves, Roger w (2005). Encyclopedia of the City; New York: Routledge.
31) Ewing, R. (1994). Characteristics, causes and effects of sprawl: a literature review‖. In: J.Matzluff, et al., (Eds) urban ecology: an international perspective on the interaction between humans and nature. New York: Springer, pp. 519-535.
32) Ewing, R. Pendall, R. and Chen, D. (2002). Measuring sprawl and its impact, vol 1 (Technical Report), SmartGrowth America, Washington DC.
33) Jahanbin, R, and Zarei, R (2012). The Consequences of the Effects of Physical Development Cities on Agricultural Lands and Land Around and Their Sphere of Influence: Case Study: Dare Shahr Township, Sabzineh Analytical Research News Newspaper, the Seventh Year, Number 71, pp 63 – 57.
34) Han, J.(2020). Can urban sprawl be the cause of environmental deterioration? Based On the provincial panel data in China. Environmental Research, 109954.
35) Hess, G, R (2001). Just what is sprawl, anyway? "Carolina Planning," a journal of the University of North Carolina Department of City and Regional Planning, Volume 26, Issue2: 2-26.
36) Johnson, M.P. (2001). Environmental Impacts of Urban Sprawl: A Survey of the Literature and Proposed Research Agenda, Environ Plann, A 33: 717-735.
37) Kwan, R (2010). Urbanization Culture, Translation by Yald Blarak, Tehran: ParhamNaghsh Publications.
38) Longman Dictionary of contemporary English (2009). London: Pearson Education Limited Medium-sized cities by spatial metrics based on fused data sets‖. International Journal of Image and Data Fusion.6 (1), pp. 42-64.
39) Meshkini, a, Mahdnezhad, H, Parhiz, F (2013). farther up Modernism Patterns in Urban Planning, Tehran, Omid Engelab Publishing Frst Puplication.
40) Mohammadian, H, Tavakoli Nia, J et al (2016). Monitoring land use change and Measuring urban sprawl based on its spatial forms the case of Qom city. The Egyptian Journal of Remote Sensing and Space Sciences.
41) Mohammadzadeh, R (2007). Study of Environmental Impact of Physical Development on Hastily Cities with the Emphasis on Tehran and Tabriz, Geography and the Area Development Magazine, Number9, pp 93-112.
42) Nengroo, Z. A., Bhat, M. S., & Kuchay, N. A.( 2017). Measuring urban sprawl of Srinagar city, Jammu and Kashmir, India. Journal of Urban Management.
43) Peiser, R (2006). Decomposing urban sprawl, Town Planning Review,72 (3).
44) Pramanik, M. M. A., & Stathakis, D. (2016). Forecasting urban sprawl in Dhaka city of Bangladesh. Environment and Planning B: Planning and Design, 43(4), 756-771.
45) Razin, E. and Rosentraub, M. (2000). Are fragmentation and sprawl interlinked? North American evidence‖. Urban Affairs Review, 35 (6), pp. 821-836.
46) Stathakis, D. and Tsilimigkas, G. (2014) Measuring the compactness of European -United Nations (2018). World urbanization prospects the 2018 revision.
47) Vahediyan Beygi, L, Pourahmad, A, Seyfadini, F (2012). Examine the Effect of Physical Growth Tehran on lands of region5, Quarterly Journal of Human Geography the Fourth Year, the First Number, pp 46 – 29
48) Wassmer, R. W. (2000). Urban sprawl in a U.S. metropolitan area: ways to measure and acomparison of the Sacramento area to similar metropolitan areas in California and the U.S. CSUS Public Policy and Administration Working Paper No. 2000–03.
49) Xiong, C., & Tan, R. (2018). Will the land supply structure affect the urban expansion form? Habitat International.
50) Zhang, T (2000). Land Market and Governments Role in Sprawl, Cities, VoL.17, No.2