This study investigates why Tehran’s Urban Complex Plan has failed to materialize, focusing on political fragmentation and weaknesses in multi‑level spatial governance. Using a descriptive–analytical design and guided document analysis, we review supra‑regional planning documents, cabinet approvals since 1995/1374, and official reports through the lenses of the political economy of space, regional planning theories, and urban–regional network approaches. Findings indicate that the absence of a supra‑regional coordinating authority, overlapping mandates and conflicts among sectoral agencies, the centralization of powers and resources in Tehran, and the dominance of market‑oriented decision‑making have sustained functional disintegration between Tehran and its periphery and undermined the Plan’s objectives. We operationalize the dimensions of “political fragmentation” (governance, planning, territorial/spatial, actors, and institutional context) and propose a four‑pillar conceptual model (structural, procedural, actor‑coordination, and spatial policy). Policy suggestions include establishing a supra‑regional coordinating body, devolving powers to local tiers, inter‑municipal spatial compacts, and smart decentralization of higher‑order public services. The framework offers a basis for re‑engineering metropolitan governance in the Tehran region.
Farnam, A. (2020). Application of Polycentric Urban Region concept in Iran’s Metropolitan Areas. Housing and Rural Environment, 39(170), 41–52. DOI: 10.22034/39.170.41.
Kamanroodi, M., Parizadi, T., & Beigdelii, M. (2016). The spatial expansion process of settlements surrounding Tehran’s mother city (Case study: The urban area of Eslamshahr–Robat Karim). Urban Studies Quarterly, 21, 51–64. https://urbstudies.uok.ac.ir/article_46002.html.
Yazdanzadeh, A., & Faghih Larijani, F. (2007). A brief legal review of metropolitan complexes and the position of municipalities. Municipalities Monthly Journal, 6(80), 52–55.
Bontje, M., & Burdack, J. (2005). The city at its limits: Dichotomous and continuous views on the post-suburban city. Belgeo, (3-4), 385–402. 10.1057/9780230308626_8.
Brenner, N. (2019). New urban spaces: Urban theory and the scale question. Oxford University Press. https://doi.org/10.1080/00343404.2019.1672939.
Gordon, P., & Richardson, H. W. (1996). Beyond polycentricity: The dispersed metropolis, Los Angeles, 1970–1990. Journal of the American Planning Association, 62(3), 289–295. https://doi.org/10.1080/01944369608975728SciSpace.
Gutiérrez, J., & García-Palomares, J. C. (2007). New spatial patterns of mobility within the metropolitan area of Madrid: Towards more complex and dispersed flow networks. Journal of Transport Geography, 15(1), 18–30. https://doi.org/10.1016/j.jtrangeo.2006.02.001
Krugman, P. (1991). Increasing returns and economic geography. Journal of Political Economy, 99(3), 483–499. https://doi.org/10.1086/261763.
Kubes, J. (2015). Analysis of regulation of residential suburbanization in hinterland of post-socialist 'one hundred thousands' city of České Budějovice. Bulletin of Geography. Socio-economic Series, (27), 109–131. https://doi.org/10.1515/bog-2015-0010.
Massey, D. S., & Denton, N. A. (1993). American apartheid: Segregation and the making of the underclass. Harvard University Press. https://doi.org/10.4159/9780674020190.
Mlejnek, M., Lütke, P., & Wood, G. (2020). Framing the debate on suburbanization in North America and Germany conceptually—Edward Soja’s concept of “regional urbanization” revisited. Urban Science, 4(1), 3. https://doi.org/10.3390/urbansci4010003.
Rahayu, P., & Mardiansjah, F. H. (2018, March). Characteristics of peri-urbanization of a secondary city: A challenge in recent urban development. In IOP Conference Series: Earth and Environmental Science (Vol. 126, No. 1, p. 012164). IOP Publishing. https://doi.org/10.1088/1755-1315/126/1/012164.
Spyra, M., Kleemann, J., Calò, N. C., Schürmann, A., & Fürst, C. (2021). Protection of peri-urban open spaces at the level of regional policy-making: Examples from six European regions. Land Use Policy, 107, 105480. https://doi.org/10.1016/j.landusepol.2021.105480
Wilson, E. (2018). The messy reality of urban outskirts. In M. Jayne & K. Ward (Eds.), Urban theory: New critical perspectives (pp. 123–136). Routledge. https://doi.org/10.4324/9781315736974-11
Kouhestani Nezhad,M. , Kamanroudi,M. and Fasihi,H. (2025). Clarifying the Role of Political Fragmentation in the Non-Realization of the Goals of Tehran's Urban Complex Plan. Human Ecology, 4(12), 1476-1493. doi: 10.22034/he.2025.542293.1134
MLA
Kouhestani Nezhad,M. , , Kamanroudi,M. , and Fasihi,H. . "Clarifying the Role of Political Fragmentation in the Non-Realization of the Goals of Tehran's Urban Complex Plan", Human Ecology, 4, 12, 2025, 1476-1493. doi: 10.22034/he.2025.542293.1134
HARVARD
Kouhestani Nezhad M., Kamanroudi M., Fasihi H. (2025). 'Clarifying the Role of Political Fragmentation in the Non-Realization of the Goals of Tehran's Urban Complex Plan', Human Ecology, 4(12), pp. 1476-1493. doi: 10.22034/he.2025.542293.1134
CHICAGO
M. Kouhestani Nezhad, M. Kamanroudi and H. Fasihi, "Clarifying the Role of Political Fragmentation in the Non-Realization of the Goals of Tehran's Urban Complex Plan," Human Ecology, 4 12 (2025): 1476-1493, doi: 10.22034/he.2025.542293.1134
VANCOUVER
Kouhestani Nezhad M., Kamanroudi M., Fasihi H. Clarifying the Role of Political Fragmentation in the Non-Realization of the Goals of Tehran's Urban Complex Plan. EL, 2025; 4(12): 1476-1493. doi: 10.22034/he.2025.542293.1134