Street Patterns, Visual Permeability, and Spatial Accessibility of Downtown: The Case of Baghdad
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Abstract
Urban forms and configurations are very influential in building up urban life; they affect street configuration, visual permeability, and spatial accessibility. However, the importance of this in impacting the performance and vibrancy of urban spaces has not been comprehended so far. Thus, the following paper takes a closer look at the key areas within downtown Baghdad, namely Alshorja and Bab AlSharqi, to analyze their urban characteristics. A comprehensive methodology was developed for this research that combined qualitative and quantitative methods, including field survey, GIS digitization, and space syntax analysis, which enabled an in-depth investigation into the street pattern, visual permeability, and spatial accessibility of the chosen case studies. The findings show sharp differences between the organic, random street pattern of AlShorja—which tries to make pedestrians move and socialize more easily—compared to Bab AlSharqi’s grid system, which tries to promote an extensive flow of vehicles and businesses. AlShorja, therefore, has higher local connectivity and street vitality in its condensed layout than Bab AlSharqi, which comes with higher visual permeability and spatial accessibility and presents the image of a CBD.
The study concluded that the blending of historical context with contemporary needs should be considered to develop livable urban environments. Pedestrian-friendly features to integrate in AlShorja combined with the principles of accessibility and navigability in Bab AlSharqi will, in turn, enhance urban vitality and connectivity. More diversified methods in future research will enrich urban planning and design for cities like Baghdad, including wider metropolitan areas.
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Akar, T., 2024. Ottoman Bazaars in Anatolia and the Balkans; An overview of influences in defining spatial and architectural qualities. Prostor: znanstveni časopis za arhitekturu i urbanizam, 32(1 (67)), pp.142-155. https://hrcak.srce.hr/file/460025.
Al Hashimi, H., Alobaydi, D., 2023, March. Measuring spatial properties of historic urban networks. In AIP Conference Proceedings, 2651( 1). AIP Publishing. https://doi.org/10.1063/5.0117077.
Albabely, S., Alobaydi, D., 2024. Analyzing movement densities in alkarkh districts: A comparative study. Journal of Engineering, 30(04), pp.134-151. https://doi.org/10.31026/j.eng.2024.04.09 .
Al-Hasani, M.K., 2021. The transformation of the urban landscape in the old city of Baghdad between 1854-2009. Doctoral dissertation, BTU Cottbus-Senftenberg.
Alobaydi, D., Al-Mosawe, H., Lateef, I.M., Albayati, A.H., 2020. Impact of urban morphological changes on traffic performance of Jadriyah intersection. Cogent engineering, 7(1), p.1772946. https://www.tandfonline.com/doi/full/10.1080/23311916.2020.1772946 .
Alobaydi, D., Rashid, M., 2017, July. A study of the morphological evolution of the urban cores of Baghdad in the 19th and 20th century. In Eleventh international space syntax symposium at Instituto Superior Técnico, University of Lisbon, Portugal (pp. 38-1).
Alobaydi, D., Rashid, M., 2024a. Morphological evolution of Baghdad: Analyzing urban growth patterns and transformation processes. Journal of Engineering, 30(12), pp.16-32. https://doi.org/10.31026/j.eng.2024.12.02 .
Alobaydi, D., Rashid, M., 2024b. The evolution of street structures: A morphological study. Journal of Engineering, 30(10), pp.203-219. https://doi.org/10.31026/j.eng.2024.10.12.
Al-Saaidy, H.J., Alobaydi, D., 2021b. Studying street centrality and human density in different urban forms in Baghdad, Iraq. Ain Shams Engineering Journal, 12(1), pp.1111-1121. https://doi.org/10.1016/j.asej.2020.06.008 .
Al-Saaidy, H.J.E., 2020. Urban form elements and urban potentiality (literature review). Journal of Engineering, 26(9), pp.65-82. https://doi.org/10.31026/j.eng.2020.09.05 .
Al-Saaidy, H.J.E., Alobaydi, D., 2021a. Measuring geometric properties of urban blocks in Baghdad: A comparative approach. Ain Shams Engineering Journal, 12(3), pp.3285-3295. https://doi.org/10.1016/j.asej.2021.04.020.
Al-Saffar, N., 2022. Studying Urban Geometric Characteristics in the Downtowns of Baghdad, Iraq. University of Baghdad, Baghdad.
Alsaffar, N.H., Alobaydi, D., 2023, March. Studying street configurations and land uses in the downtown of Baghdad. In AIP Conference Proceedings, 2651 (1). AIP Publishing. https://doi.org/10.1063/5.0105420 .
ALslik, G.M.R., Majeed, F.A., 2014. Succession of urban structures of the city of Baghdad. Journal of Engineering, 20(12), pp.1-30. https://doi.org/10.31026/j.eng.2014.12.11 .
Awad, J. A. 1989. Islamic souqs (bazaars) in the urban context: the souq of Nablus. Manhattan, Kansas: Kansas State University.
Batty, M., 2022. Integrating space syntax with spatial interaction. Urban Informatics, 1(1), p.4. https://link.springer.com/content/pdf/10.1007/s44212-022-00004-2.pdf .
Beck, M.P., Turkienicz, B., 2009. Visibility and permeability. Image, 1(1B), p.1C.
Brown, J.R., Neog, D., 2012. Central business districts and transit ridership: A reexamination of the relationship in the United States. Journal of Public Transportation, 15(4), pp.1-22. https://doi.org/10.5038/2375-0901.15.4.1 .
Camp, J.M., 2003. The Athenian agora: A short guide (Vol. 16). ASCSA.
Conzen, M.R.G., 1960. Alnwick, Northumberland: A study in town-plan analysis. Transactions and Papers (Institute of British Geographers), (27), pp.1-122.
Conzen, M.R.G., 1975. Geography and townscape conservation. In Anglo-German symposium in applied geography (pp. 95-102). GiessenWürzburg-München, Lenz, Giessen.
Dubinina, A., Wawrzyńska, A., Krośnicka, K.A., 2022. Permeability of waterfronts—contemporary approach in designing urban blue spaces. Sustainability, 14(15), p.9357.
Erbas, A.E., 2013. Central business district planning and the sustainable urban development process in Istanbul. The Sustainable City VIII (2 Volume Set): Urban Regeneration and Sustainability, 179, pp.69-80.
Farhan, S.L., Alobaydi, D., Anton, D., Nasar, Z., 2022. Analyzing the master plan development and urban heritage of Najaf City in Iraq. Journal of Cultural Heritage Management and Sustainable Development.
Hakim, B.S., 1994. The “Urf” and its role in diversifying the architecture of traditional Islamic cities. Journal of Architectural and Planning Research, pp.108-127.
Hakim, B.S., 2007. Generative processes for revitalizing historic towns or heritage districts. Urban Design International, 12(2), pp.87-99.
Hakim, B.S., 2013. Arabic Islamic cities rev: Building and planning principles. Routledge.
Hillier, B., 1989. The architecture of the urban object. Ekistics, pp.5-21.
Hillier, B., 1997. Cities as movement economies. In Intelligent Environments (pp. 295-344). North-Holland.
Hillier, B., 1999a. Centrality as a process: Accounting for attraction inequalities in deformed grids. Urban Design International, 4, pp.107-127.
Hillier, B., 1999b. The hidden geometry of deformed grids: Or, why space syntax works when it looks as though it shouldn’t. Environment and Planning B: Planning and Design, 26(2), pp.169-191.
Hillier, B., 2005. The art of place and the science of space. World Architecture, 185, pp.96-102.
Hillier, B., 2007. Space is the machine: a configurational theory of architecture. Space Syntax.
Hillier, B., Hanson, J., 1989. The social logic of space. Cambridge University Press.
Hillier, B., Iida, S., 2005, June. Network effects and psychological effects: a theory of urban movement. In Proceedings of the 5th International Symposium on space syntax (Vol. 1, pp. 553-564).
Hillier, B., Penn, A., Hanson, J., Grajewski, T., Xu, J., 1993. Natural movement: Or, configuration and attraction in urban pedestrian movement. Environment and Planning B: planning and design, 20(1), pp.29-66.
Hillier, B., Vaughan, L., 2007. The city as one thing. Progress in planning, 67(3), pp.205-230.
Huang, B.X., Chiou, S.C., Li, W.Y., 2020. Accessibility and street network characteristics of urban public facility spaces: Equity research on parks in Fuzhou city based on GIS and space syntax model. Sustainability, 12(9), p.3618. https://www.mdpi.com/2071-1050/12/9/3618 .
Kayanan, C.M., 2022. A critique of innovation districts: Entrepreneurial living and the burden of shouldering urban development. Environment and Planning A: Economy and Space, 54(1), pp.50-66. https://journals.sagepub.com/doi/10.1177/0308518X211049445 .
Kiet, A., 2011. Arab culture and urban form. Focus, 8(1), p.10.
Kim, W.B., 2011. The viability of cultural districts in Seoul. City, Culture and Society, 2(3), pp.141-150. https://doi.org/10.1016/j.ccs.2011.04.003.
Koch, D., 2012. Architectural Disjunctions: Morphological identity and syntactic contrasts of visibility and permeability. In 8th International Space Syntax Symposium (pp. 8143.1-8143.18). https://www.diva-portal.org/smash/get/diva2:476981/FULLTEXT01.pdf .
Long, Y., Qin, J., Wu, Y., Wang, K., 2023. Analysis of Urban Park accessibility based on Space Syntax: take the urban area of Changsha City as an example. Land, 12(5), p.1061. https://www.mdpi.com/2073-445X/12/5/1061 .
Mbisso, D., 2011. Petty trading in marketplaces: space generation, use and management at Temeke Stereo marketplace in Dar es Salaam, Tanzania.
Mitchell, J., 2001. Business improvement districts and the “new” revitalization of downtown. Economic Development Quarterly, 15(2), pp.115-123.
Mohammed, L.R., Alobaydi, D., 2020a. Evolution of the urban form of historic hit citadel: deriving a schematic model for Iraqi fortified cities. In IOP Conference Series: Materials Science and Engineering (Vol. 745, No. 1, p. 012180). IOP Publishing. https://iopscience.iop.org/article/10.1088/1757-899X/745/1/012180 .
Mohammed, L.R., Alobaydi, D., 2020b, July. Studying sustainable actions of syntactic structures of Historic Hit Citadel: A morphological approach. In IOP Conference Series: Materials Science and Engineering (Vol. 881, No. 1, p. 012034). IOP Publishing. https://iopscience.iop.org/article/10.1088/1757-899X/881/1/012034/meta .
Nabi, R.N., Rezaei, N., Zadeh, R.M., Haghparast, F., 2024. A study on the form contemporary developments of Tabriz leather and shoe Bazaar (marketplace) from the late Qajar to the current period. Frontiers of Architectural Research. https://doi.org/10.1016/j.foar.2024.03.005 .
Ozuduru, B.H., Webster, C.J., Chiaradia, A.J., Yucesoy, E., 2021. Associating street-network centrality with spontaneous and planned subcentres. Urban Studies, 58(10), pp.2059-2078. https://journals.sagepub.com/doi/10.1177/0042098020931302 .
Penn, A., Hillier, B., Banister, D., Xu, J., 1998. Configurational modeling of urban movement networks. Environment and Planning B: planning and design, 25(1), pp.59-84.
Pourjafar, M., Amini, M., Varzaneh, E.H., Mahdavinejad, M., 2014. Role of bazaars as a unifying factor in traditional cities of Iran: The Isfahan bazaar. Frontiers of Architectural Research, 3(1), pp.10-19. https://doi.org/10.1016/j.foar.2013.11.001 .
Rannells, J., 1956. The core of the city: A pilot study of changing land uses in central business districts. Columbia University Press.
Rashid, M., 2017. The geometry of urban layouts. Cham: Springer.
Russell, A., 2014. Memory and movement in the Roman Fora from antiquity to Metro C. Journal of the Society of Architectural Historians, 73(4), pp.478-506.
Russell, Amy. 2016. On gender and spatial experience in public: The case of ancient Rome. Oxford: http://doi.org/10.16995/TRAC2015_164_176
Taghizadehvahed, N., 2015. A comparative study of covered shopping spaces: Covered bazaars, arcades, shopping malls. Middle East Technical University.
Turner, A., Penn, A., Hillier, B., 2005. An algorithmic definition of the axial map. Environment and Planning B: planning and design, 32(3), pp.425-444.
Van Nes, A., 2021. Spatial configurations and walkability potentials. Measuring urban compactness with space syntax. Sustainability, 13(11), p.5785. https://www.mdpi.com/2071-1050/13/11/5785.
Whitehand, J.W., 2007, June. Convenient urban morphology and urban landscapes. In 6th International Space Syntax Symposium (Vol. 6, pp. 12-15).
Whitehand, J.W.R., 1977. The basis for a historico-geographical theory of urban form. Transactions of the Institute of British Geographers, pp.400-416.