Urban architecture, design, development and planning
P. Shehu; L.S. Rikko; M.B. Azi; D.B. Bawa; A.Y. Taimako
Abstract
BACKGROUND AND OBJECTIVES: One of the fascinating and complex realities of global development in the 21st century is urbanization. The present study focused on appraising the spatial pattern, nature, and growth drivers in selected peri-urban areas of Jos Metropolis. Accuracy assessment and classification ...
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BACKGROUND AND OBJECTIVES: One of the fascinating and complex realities of global development in the 21st century is urbanization. The present study focused on appraising the spatial pattern, nature, and growth drivers in selected peri-urban areas of Jos Metropolis. Accuracy assessment and classification of Landsat Satellite Images, evaluation of the spatial pattern of growth, the nature of growth, and the driving forces of growth were conducted.METHODS: Data were collected through field observation and questionnaire administration, use of Remote Sensing and Geographic Information System, Global Positioning System, and camera. Satellite imageries used to identify the classes of LULC from 1999 to 2022 were Thematic Mapper (L5_TM) 1999, Landsat 7 ETM+ 2014, and Landsat 8 ETM+ 2022. GPS was used for Ground Truthing, and IDRISI Taiga software was used for image classification and area calculation. ArcGIS 10.1 used to visualize the satellite images and produce maps. FINDINGS: Results revealed a definite growth rate pattern and land modification trends in the peri-urban areas over the study period. Between 1999 and 2014, fast growth was observed in Farin Gada and Rantya at 42.5% and 35.8% change, respectively; there was slow growth in Sabon-Gari at 7.0% proportion. From 2014 to 2022, growth in Farin-Gada (41.9%), Rantya (35.9%), and Rahowl Kanang (21.9%) proceeded rapidly with Sabon-Gari maintaining the least growth (0.3%). The study observed a linear growth pattern along arterial roads and a dispersed pattern proceeded by land fragmentation as built-ups spread farther from the road corridors. The nature of growth in the peri-urban areas was significantly unplanned, irregular, and disorderly and observed to be massively taking over agricultural land and swallowing up adjoining settlements. The study identified eight drivers that contributed to shaping and propelling growth in the areas.CONCLUSION: The study recommended that the government should integrate the peri-urban areas into its physical development planning schemes and should enforce an effective Development Control mechanism to manage the spatial growth of these areas. The findings will help planners and policy-makers make informed and unified decisions beyond administrative boundaries. The study also adds to the body of knowledge globally and provides the bases for further research.
Urban architecture, design, development and planning
P. Shehu; L.S. Rikko; M.B. Azi
Abstract
BACKGROUND AND OBJECTIVES: Recently, Jos Metropolis, Nigeria is witnessing a strong trend toward urban growth and expansion. This phenomenon has impacted Land Use/Land Cover and efficient management of land. This paper evaluated urban growth and changes in Land Use /Land Cover and examined the land use ...
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BACKGROUND AND OBJECTIVES: Recently, Jos Metropolis, Nigeria is witnessing a strong trend toward urban growth and expansion. This phenomenon has impacted Land Use/Land Cover and efficient management of land. This paper evaluated urban growth and changes in Land Use /Land Cover and examined the land use efficiency of the metropolis. Land Use and Land Cover changes were established from 1999 to 2022; Land consumption rate and population growth rate were determined, and computation of the SDG 11.3.1 framework was done to examine the efficiency of land use.METHODS: Data were collected through official documents, the use of remote sensing, and, geographic information systems. Satellite imageries used to determine the classes and changes in Land Use/Land Cover changes were Landsat 5 TM (1999), Landsat 7 ETM+ (2004, 2009, and 2014), and Landsat 8 ETM+ (2018 and 2022). Global positioning system was used for ground-truthing, IDRISI Taiga software was used for image classification, and ArcGIS was used for map visualization. Four classes of Land Use and Land Cover were identified: Built-up, Meadows, Mountain/Vegetation, and Water bodies.FINDINGS: Results revealed that built-up area increased consistently from 3494.007 hectares in 1999 to 16995.360 ha in 2022 leading to a substantial reduction in other land use and land cover. The study confirmed a burgeoning population growth from 780,000 in 1999 to 1,563,193 in 2022. This growth had a significant impact on urban land use management, consuming a large proportion of land from 3494.007 hectares to 16995.36 hectares in 1999 and 2022 respectively. Results revealed a high land consumption rate of 0.0962 and 0.0884 during 2018-2022 and 1999-2004. A high population growth rate (0.0414) was recorded during 2018-2022. These dynamics intensified the rate of land acquisition for urban development. The average value of the SDG 11.3.1 framework was 2.3 which is higher than 1, indicating that urban expansion is moving away from land use efficiency.CONCLUSION: The paper recommended the establishment of a Growth Management Monitoring system by the state government for effective and efficient management of land resources through a spatial plan for the metropolis. This study has provided insight into the dynamics of Jos metropolitan LULC and land use efficiency management which could be useful to policymakers, urban planners, and researchers in initiating sustainable urban development strategies and inclusive structure for its planning and management.