Kyushu University Academic Staff Educational and Research Activities Database
List of Papers
Prasanna Divigalpitiya Last modified date:2019.06.25

Associate Professor / Faculty of Human-Environment Studies / Department of Architecture and Urban Design / Faculty of Human-Environment Studies


Papers
1. Sarita Maharjan Naoki Tsurusaki Prasanna Divigalpitiya , Micro-scale Analysis of Urban Form, Travel and Travel Energy Consumption ― A Case Study of Fukuoka City ―, Proceedings 11th International Symposium on City Planning and Environment Management in Asian Countries, 2018.01.
2. Hatem Mahmoud, Prasanna Divigalpitiya, Spatiotemporal variation analysis of urban land expansion in the establishment of new communities in Upper Egypt: A case study of New Asyut city, The Egyptian Journal of Remote Sensing and Space Science, Science direct , https://doi.org/10.1016/j.ejrs.2018.03.006 , 22, 1, 59-66, 2019.04, The Egyptian government set out in the 1970s to establish new cities in the desert to absorb urban sprawl and to prevent further depletion of agricultural lands. Despite such efforts, this policy has not met with much success. In the present study, LANDSAT satellite imagery and binary logistic regression analysis were employed to investigate the nature of urban sprawl in one of the most important cities in Egypt, Asyut city, as well as the area connecting it to New Asyut city by quantifying the interaction between the driving forces of land use/cover change. Various socioeconomic factors associated with land control policy were examined. The results indicated that whereas directing urban development towards the new city created a semblance of balance initially, the rate of land development in the study area outstripped the rate of population growth, especially in the new city. While establishment of the new city boosted early urban development, further development in the regions outside the Nile valley was not sustained due to a lack of supportive governmental policies. Consequently, urban residents moved back inside the valley to re-settle on agricultural lands adjacent to the old urban cores. This study is the first to quantify the driving forces of land use in this region. It offers useful data to guide planned and purposeful expansion of urban land by government policy-makers in their effort to curb urban sprawl and prevent further encroachment on agricultural land in Egypt..
3. Sarita Maharjan, Naoki Tsurusaki, Prasanna Divigalpitiya, Influencing Mechanism Analysis of Urban Form on Travel Energy Consumption—Evidence from Fukuoka City, Japan, Urban Science, 2, 1, article number 15, 2018.02, [URL].
4. #Gonzalez Carlos, Prasanna Divigalpitiya, The Potential of Participatory Design to Improve Urban Spaces in the Slums of Caracas, Venezuela, WIT Transactions on Ecology and the Environment , 10.2495/SDP170411, 226, 469-478, 2017.07, [URL].
5. Chengkang Wang, Divigalpitiya Upendra Chithra Sri Prasanna, Takeru Sakai, A study on conservation of walled cities in Europe and China, AIJ Journal of Technology and Design, 10.3130/aijt.23.247, 23, 53, 247-252, 2017.02, This research aims to compare the conservation situation and the features of existing walled cities in Europe and China. Following are the results of 48 walled cities selected for this study. After considering the extended form of the city wall and the urban form of each walled city, cluster analysis was carried out for each walled city using city wall space, urban scale, and urban form as variables. The 48 walled cities were typified into 4 groups and finally, suggestions for the future conservation of each group were given based on the features of them..
6. Hatem Mahmoud, Divigalpitiya Upendra Chithra Sri Prasanna, Modeling future land use and land-cover change in the Asyut region using Markov chains and cellular automata, Smart and Sustainable Planning for Cities and Regions, 10.1007/978-3-319-44899-2_7, 99-112, 2017.01, The Asyut region in Upper Egypt is often considered as one of the most appealing regions in Upper Egypt for its importance as a medical, educational, and commercial center. As a result of these factors and regarding its location, which is surrounded by agriculture land, the available land area is quickly decreasing. However, the government has established New Asyut city to absorb the urban growth outside the Nile Valley. Yet the region's importance and the increasing population have led to significant urban growth, which has led to increasing loss of agricultural lands within the Nile Valley. Modelling spatially the dynamic change is important for innovative planning strategies. This study's main aims are to characterize the past urban growth process and to investigate a future scenario intended to help decision-makers in redrawing their policies for sustainable development to save the agriculture areas by absorbing the urban sprawl towards the new cities outside the Nile Valley. Satellite-derived Land Use and Land Cover (LULC) maps of the study area from 1990, 2003, and 2015 were processed. The explanatory driving forces were quantified and ordered using an analytical hierarchy process. The outputs were then processed within a framework of the Markov-cellular automata, and a multi-criteria evaluation (MCE) was used to produce the future suitability model. The model was verified using ROC and Kappa statistics. The study concluded that combinations of diversified driving forces exist during different periods. It found that the current urban development process is in a critical stage where urban and rural areas will face unprecedented stress on agriculture areas over the next 15 years. The present policies cannot deal with the future challenges regarding the direction of urban development. However, the study suggests that differentiated policies, based on the investigated scenario, should be considered to guide reasonable urban expansion; these have important implications for urban planning and management in Egypt..
7. Hatem Mahmoud, Divigalpitiya Upendra Chithra Sri Prasanna, Modeling future land use and land-cover change in the asyut region using markov chains and cellular automata, Green Energy and Technology, 10.1007/978-3-319-44899-2_7, 99-112, 2017.01, The Asyut region in Upper Egypt is often considered as one of the most appealing regions in Upper Egypt for its importance as a medical, educational, and commercial center. As a result of these factors and regarding its location, which is surrounded by agriculture land, the available land area is quickly decreasing. However, the government has established New Asyut city to absorb the urban growth outside the Nile Valley. Yet the region’s importance and the increasing population have led to significant urban growth, which has led to increasing loss of agricultural lands within the Nile Valley. Modelling spatially the dynamic change is important for innovative planning strategies. This study’s main aims are to characterize the past urban growth process and to investigate a future scenario intended to help decision-makers in redrawing their policies for sustainable development to save the agriculture areas by absorbing the urban sprawl towards the new cities outside the Nile Valley. Satellite-derived Land Use and Land Cover (LULC) maps of the study area from 1990, 2003, and 2015 were processed. The explanatory driving forces were quantified and ordered using an analytical hierarchy process. The outputs were then processed within a framework of the Markov-cellular automata, and a multi-criteria evaluation (MCE) was used to produce the future suitability model. The model was verified using ROC and Kappa statistics. The study concluded that combinations of diversified driving forces exist during different periods. It found that the current urban development process is in a critical stage where urban and rural areas will face unprecedented stress on agriculture areas over the next 15 years. The present policies cannot deal with the future challenges regarding the direction of urban development. However, the study suggests that differentiated policies, based on the investigated scenario, should be considered to guide reasonable urban expansion; these have important implications for urban planning and management in Egypt..
8. Taher Osman, Divigalpitiya Upendra Chithra Sri Prasanna, Takafumi Arima, Driving factors of urban sprawl in Giza Governorate of Greater Cairo Metropolitan Region using AHP method, Land Use Policy, 10.1016/j.landusepol.2016.07.013, 58, 21-31, 2016.12, Based on questionnaire surveys and the AHP method, this paper determines the driving forces of urban sprawl and analyzes their relative influence on sprawl in the middle, north, and south sectors of Giza Governorate, which is located in the western part of the Greater Cairo Metropolitan Region. Sprawl patterns in the study area were influenced by seven driving forces: geographical characteristics, availability of life facilities, economic incentives, land demand and supply, population increases, administrative functions, and development plans. These forces have varying degrees of influence in each sector. Amongst these forces, economic incentives in the middle sector, population increases in the north sector, and administrative functions in the south sector were the forces most influential in urban sprawl..
9. Taher Osman, Divigalpitiya Upendra Chithra Sri Prasanna, Mustafa M. Osman, Emad Kenawy, Muhammad Salem, Omar Hamdy, Quantifying the relationship between the built environment attributes and urban sustainability potentials for housing areas, Buildings, 10.3390/buildings6030039, 6, 3, 2016.09, The Greater Cairo Metropolitan Region (GCMR) in its seeking to sustainable development (SD) by the year of 2050 facing the serious challenge of around 65 percent of Cairenes live in unplanned settlements. In this respect, the authors examined the effect of urban characteristics of unplanned settlements on SD in the Egyptian context, focusing on the type of unplanned growth on agricultural land. The output of the analysis were fourfold. First of all, we provide a brief overview of previous research on the main types of unplanned settlements in GCMR and the sustainability definition according to the Egyptian context. Secondly, we had a discussion with the local government during our field survey in GCMR to determine the study samples, the main urban characteristics, and the sustainability evaluation criteria in the Egyptian context. Thirdly, through the comparative analysis and geographic information system (GIS), we examined how the character of urban development affected per capita four urban measures in a cross-section of two settlements, one represented the unplanned settlements and other as a comparative planned sample to determine the real gap. Finally, by using the evaluation matrix, the help and block items are estimated for each measure of urban characteristics, providing substantive evidence on how the four measures of urban characteristics have been affected by the urban sprawl..
10. Taher Osman, Divigalpitiya Upendra Chithra Sri Prasanna, Takafumi Arima, Using the SLEUTH urban growth model to simulate the impacts of future policy scenarios on land use in the Giza Governorate, Greater Cairo Metropolitan region, International Journal of Urban Sciences, 10.1080/12265934.2016.1216327, 20, 3, 407-426, 2016.09, The goal of this paper was to find an appropriate urban policy to preserve arable land that is being consumed by highly accelerated urban growth in the Giza Governorate of the Greater Cairo Metropolitan region for the last 50 years. We simulated three different urban policies and relevant growth scenarios for Giza from 2015 to 2035 by using the SLEUTH model to investigate their effects on arable lands. The first scenario used historical growth trends to simulate the persistent growth trends under existing conditions. The second was a compact growth scenario with robust restrictions on development in areas outside of designated growth centres. The third scenario considered officially planned growth that integrated stricter growth plans and stronger protections on lands with natural resources at a level that could be realistically accomplished with strong political commitments. The input data required by the model, including slope, land use, exclusion, and urban growth, transportation, and hill shade were derived from three Landsat satellite images from 1984, 2000, and 2013, according to supervised classifications. The simulation results found that the compact growth policy scenario had the least negative impact on arable lands, while the historical growth scenario had the worst impact..
11. Taher Osman, Prasanna Divigalpitiya, Arima Takafumi, Driving Factors of Urban Sprawl in Giza Governorate of the Greater Cairo Metropolitan Region Using a Logistic Regression Model., International Journal of Urban Sciences, Taylor& Francis Publications,, 10.1080/12265934.2016.1162728., 2016.05.
12. Taher Osman, Divigalpitiya Upendra Chithra Sri Prasanna, Takafumi Arima, Driving factors of urban sprawl in Giza governorate of the Greater Cairo Metropolitan Region using a logistic regression model, International Journal of Urban Sciences, 10.1080/12265934.2016.1162728, 20, 2, 206-225, 2016.05, Since the 1950s, The Greater Cairo Metropolitan Region (GCMR) has witnessed an unprecedented rate of urban sprawl that has been mainly concentrated in arable lands against urban planning regulations, and has presented a critical challenge to the urban environment and serious corrosion for arable lands. Thus, the need to identify the driving factor of sprawl is crucial to understand the future of the GCMR urban environment and to overcome the serious challenges of rapid urbanization. We focused on the Giza governorate as a critical area in the GCMR and divided it into three sub-sectors to collect data and analyse. A primary list of driving factors was identified by literature review. Later this list was narrowed down to seven factors after interviews with local urban experts and consideration of the availability of data. Next, a logistic regression analysis was used to evaluate those factors with data derived from existing maps and remotely sensed data for the period of 2004–2013. An operating characteristic (ROC) evaluation of the logistic regression analysis gave high accuracy rates for the entire study area. The findings of the research revealed decreasing significance of the CBD and Nile River as drivers of sprawl. The most significant factors according to the analysis were neighbourhood factors, local urban centres, and accessibility factors of distances to urban uses and major roads. The research suggests more future urban expansion by the existing urban cores and along major roads, leading to more informal urban settlements. It also points to the possibility of persistent deterioration in the urban built environment and agricultural lands. Thus, these findings should be applied to actual urban planning policies, and development regulations should be strengthened to protect the urban environment from further deterioration..
13. Taher Osman, Prasanna Divigalpitiya, Arima Takafumi, Measuring urban Sprawl patterns in Greater Metropolitan Cairo Region., Journal of the Indian Society of Remote Sensing, Springer Publications, , 10.1007/s12524-015-0489-6. , 2016.04.
14. Taher Osman, Takafumi Arima, Divigalpitiya Upendra Chithra Sri Prasanna, Measuring Urban Sprawl Patterns in Greater Cairo Metropolitan Region, Journal of the Indian Society of Remote Sensing, 10.1007/s12524-015-0489-6, 44, 2, 287-295, 2016.04, On the subject of informal sprawl in recent Egypt, this research takes Greater Cairo Region (GCR) as a case and puts forward that informal urban sprawl can be estimated from spatial disposition, informal sprawl efficacy and outer influences; and then evolves a geo-spatial indicators system for quantifying sprawl. So as to estimating these indicators, various data sources are selected, including land use maps, digitized map of the highways and town centers, and population statistical data, etc. GIS spatial analysis methods are used to spatialize these indicators into 120 m × 120 m cells. In addition, an incorporated sprawl index (ISI) is estimated by weight sum of these indicators. The results demonstrated that geo-spatial indicators system can captivate most of the exemplary attributes and interior differentia of urban sprawl. Building land in Cairo has kept quick growing with considerable amount of low efficacy and dysfunctional spatial disposition. The subsequent sprawl attributes are determined by each indicator’s exemplary spatial disposition of urban sprawling, conspicuous fragmentation and unevenness of landscape due to ineffective implementation of land use planning, improper pattern of exemplary discontinuous development, strip development and leapfrog development, low efficacy of sprawl, low development density, low population density output in newly developed areas; and unfavorable influences on agriculture and environment and population life..
15. Taher Osman, Divigalpitiya Upendra Chithra Sri Prasanna, Mustafa M. Osman, The impact of built environment characteristics on metropolitans energy consumption
An example of greater cairo metropolitan region, Buildings, 10.3390/buildings6020012, 6, 2, 2016.03, This paper examined the influences of the built environment and socio-economic driving factors on domestic gasoline consumption in developing metropolitan regions through a case study of the greater Cairo metropolitan region (GCMR), Egypt. Structural equation modeling (SEM) was used in analyzing the causality of the domestic gasoline consumption. The influences of major factors hypothetically affecting the domestic energy consumption such as resident characteristics and built environment characteristics were examined. The results proved a high positive influence of the resident's income and the number of adults as driving factors, directly and indirectly, affecting energy consumption levels. Population density and attitude towards eco-friendly driving factors proved to be a very low influence on energy consumption. The built environment driving factors such as access time to public transportation and related building characteristics factors proved to have a low impact on energy consumption. The study findings suggest that the design of a built environment should be well related to the socioeconomic factors to manage the domestic energy consumption in developing regions..
16. Taher Osman, Prasanna Divigalpitiya, Arima Takafumi, Spatial Metrics to Quantify Urban Sprawl in Greater Cairo Metropolitan Region. , 都市・建築学研究 : 九州大学大学院人間環境学研究院紀要 , 29, 39-48 , 2016.01.
17. Taher Osman, Prasanna Divigalpitiya, Arima Takafumi, Effect of Urban Development Patterns on Traffic-Related CO₂ Emissions in Greater Cairo Metropolitan Region. , 都市・建築学研究 : 九州大学大学院人間環境学研究院紀要, 29, 29-38 , 2016.01.
18. Divigalpitiya Upendra Chithra Sri Prasanna, Scenario analysys
Robust future growth policy analysis in Western Region of Sri Lanka: An exploratory framework for planning policies, 13th International Conference on Design and Decision Support Systems in Architecture and Urban Planning, DDSS 2016 Design and Decision Support Systems in Architecture and Urban Planning - 13th International Conference on Design and Decision Support Systems in Architecture and Urban Planning, DDSS 2016, 2016.01, Colombo, the largest city in Sri Lanka, has expanded rapidly and continuously since the local economy was opened in the early 1980s. As a contrast to the other cities in the region, one of the main issues that planners have observed with current urbanization pattern was the slow growth of population density in the region to sustain reasonable economic growth that can support modern transportation and other infrastructure. The new Western Region Megapolis Project (WRMP) is attempting to develop a cluster of urban centers connected with modern transportation network. According to the proposed development plan, a cluster of urban centers expected to create an urban development pattern with better territorial balance. The objective of the proposed strategy is increasing the current population base by stimulating migration to the region. The plan has an ambitious goal with an estimated population of 8.5 million by 2030 with 3 million increases. The strategies proposed in the WRMP to attract population to peripheral urban centers are improving connectivity and creating job opportunities by way of increased investments. This research demonstrates a methodology to evaluate urban planning scenarios arising from policies of in the WRMA proposal using CA model and a Latin Hypercube Sample design. This method is useful in situations where the availability of reliable socioeconomic data is not available for data-intensive simulations..
19. Prasanna Divigalpitiya, K. Nurul HANDAYANI, Measuring the Urban Expansion Process of Yogyakarta City in Indonesia;Urban expansion process and spatial and temporal characteristics of growing cities, International Review for Spatial Planning and Sustainable Development , 3, 4, 18-32 , 2015.10.
20. Taher Osman, Divigalpitiya Upendra Chithra Sri Prasanna, Takafumi Arima, Effect of Governmental Housing Regulations on the Egyptian Housing Market
Focusing on Greater Cairo Metropolitan Region, 都市・建築学研究 : 九州大学大学院人間環境学研究院紀要, 28, 1-9, 2015.07, The housing issue in Greater Cairo metropolitan region (GCMR)'s has continued despite of the numerous policies that the government has introduced during the last 70 years. This research discusses housing policies changes and their effects on the housing issue in GCMR. Primary data were derived through questionnaire survey and secondary data from national censuses. The results find that the change in the general state policies did success in attracting more investments for public housing of low-income residents but failed to end the phenomenon of vacant housing or attract slums residents to new urban centers (NUC)..
21. Taher Osman, Divigalpitiya Upendra Chithra Sri Prasanna, Takafumi Arima, Modeling urban growth scenarios in Cairo Metropolitan Region 2035, 14th International Conference on Computers in Urban Planning and Urban Management, CUPUM 2015 CUPUM 2015 - 14th International Conference on Computers in Urban Planning and Urban Management, 2015.01, The goal of this research was simulating future urban growth of the Cairo region from 2015 to 2035, by making use of cellular automata methodology in the SLEUTH modelling. The input data required by the model, including Slope, Land use, Exclusion, Urban growth, Transportation and Hillshade which were derived from three Landsat satellite images from 1984, 2000, and 2013 according to supervised classification. Three scenarios were designed to simulate the spatial pattern of urban growth. The first scenario is Historical growth trends to simulate the persisted growth trends by preserving the existing conditions. The second is a compact growth scenario with robust restrictions on development in areas that are outside of designated growth centers. The third scenario is growth as planned officially that integrates stricter growth plans and stronger protections on natural resource lands at a level that could be realistically accomplished with strong political obligation. Calibration of the SLEUTH model for Cairo metropolitan area manifested a high road coefficient beside similar high spread coefficient, which implies that the predicted mode of growth in Cairo are road influenced growth, and edge growth..
22. Taher Osman, Takafumi Arima, Prasanna Divigalpitiya, Pseudo urbanization in Cairo Region: Quantifying informal urban sprawl with geo-spatial indices , Fist international conference of IASUR 2014, 2014.11.
23. Taher Osman, Takafumi Arima, Prasanna Divigalpitiya, The tale of slums in Cairo Region: Describing the actual gap between the unplanned and planned urban growth in the greater Cairo Metropolitan Region , Journal Habitat Engineering and Design , 6, 1, 2014.11.
24. Dongki Hong, Takeru Sakai, Prasanna Divigalpitiya, Feature of Single-person Household and Urban-Life-Housing in Korea, the first international conference of IASUR 2014, 2014.11.
25. Prasanna Divigalpitiya, K. Nurul HANDAYANI, Measuring Urban Expansion Process of Yogyakarta City in Indonesia., Proceedings of 9th International Symposium on City Planning and Environmental Management in Asian Countries, 2014.02.
26. K. Nurul HANDAYANI, Takeru Sakai, Atsusi DEGUCHI, Prasanna Divigalpitiya, Features and Issues of Urban Industrial Batik Cluster Development in Surakarta and Yogyakarta, Indonesia, Architectural Institute of Japan , 78, 686, 837-846, 2013.04.
27. Prasanna Divigalpitiya, Measuring spatial and temporal dynamics of urban growth in Colombo Metropolitan Region (CMR), The First International Conference for International Society of Habitat Engineering and Design (ISHED), 2012.10.
28. Koichiro Aitani, Prasanna Divigalpitiya, Design Education for Sustainable Architecture and Urban Systems - Case of the Joint Workshop of Kyushu University and the University of Moratuwa -, The First International Conference for International Society of Habitat Engineering and Design (ISHED), 2012.10.
29. Nurul Handayani Kusumaningdyah, Takeru. Sakai, Atsushi Deguchi, Prasanna Divigalpitiya , Conservation Management of Borobudur World Heritage Site, The First International Conference for International Society of Habitat Engineering and Design (ISHED), 2012.10.
30. Prasanna Divigalpitiya, Akira Ohgai, Takeru Tani, Kojiro Watanabe, Yoshimizu Gohnai, , Modeling Land Conversion in the Colombo Metropolitan Area Using Cellular Automata, Journal of Asian Architecture and Building Engineering, November ,  , 291-298, 2007.11.
31. Kojiro Watanabe, Prasanna Divigalpitiya, Akira Ohgai, Akio Kondo, Evaluation For Sustainable Urban Form in Asian Developing Countries by Cellular Automata Simulation, Proceedings of the 9th International Conference on Computers in Urban Planning and Urban Management, 123, 2005.12.
32. Prasanna Divigalpitiya, Kojiro Watanabe and Akira Ohgai, Analyzing the urban expansion process in Colombo Urban Area and its Cellular Automata Modeling, Proceedings 5th Symposium on Architectural Interchanges in Asia, 327-332, 2004.06.
33. Kojiro Watanabe, Prasanna Divigalpitiya and Akira Ohgai, Cellular Automata Modeling for Urban Expansion in Colombo Urban Area, Sri Lanka Part2. Calibration and Discussion, Architectural Institute of Japan Annual Meeting, F-1, pp.1013-1014, 2003.08.
34. Prasanna Divigalpitiya, Kojiro Watanabe and Akira Ohgai, Cellular Automata Modeling for Urban Expansion in Colombo Urban Area, Sri Lanka Part1. Modeling concept and structure, Architectural Institute of Japan Annual Meeting, F-1, pp.1011-1012,, 2003.08.
35. Prasanna Divigalpitiya, Kojiro Watanabe and Akira Ohgai, Cellular Automata model to predict the urbanization of Colombo Urban Area Sri Lanka -Modeling concept and structure, Architectural Institute of Japan Toukai Annual Meeting, 769-772, 2003.02.
36. Prasanna Divigalpitiya, Kojiro Watanabe and Akira Ohgai, Fundamental study for urban growth modeling in developing countries Part2 Analysis of urbanization factors, Architectural Institute of Japan Annual Meeting, 2002.08.
37. Kojiro Watanabe, Prasanna Divigalpitiya and Akira Ohgai, Fundamental study for urban growth modeling in developing countries Part1 Analysis of urbanization pattern,, Architectural Institute of Japan Annual Meeting, 669-672, F-1, 2002.08.