Time-Series Satellite Imagery Demonstrates the Progressive Failure of a City Master Plan to Control Urbanization in Abuja, Nigeria
Urbanization is a global phenomenon, but its negative effects are most pronounced in developing countries. While much urbanization in the global South is unplanned, there have been occasional attempts at strategic, large-scale urban planning. One example is Abuja, Nigeria, a new city with origins in...
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doaj-8e425c293b934bd68eea5066af359f582020-11-25T02:04:01ZengMDPI AGRemote Sensing2072-42922020-03-01121112111210.3390/rs12071112Time-Series Satellite Imagery Demonstrates the Progressive Failure of a City Master Plan to Control Urbanization in Abuja, NigeriaIbrahim A. Gumel0Paul Aplin1Christopher G. Marston2Jeremy Morley3Department of Geography and Geology, Edge Hill University, St Helens Road, Ormskirk L39 4QP, UKDepartment of Geography and Geology, Edge Hill University, St Helens Road, Ormskirk L39 4QP, UKDepartment of Geography and Geology, Edge Hill University, St Helens Road, Ormskirk L39 4QP, UKOrdnance Survey, Explorer House, Adanac Drive, Southampton SO16 0AS, UKUrbanization is a global phenomenon, but its negative effects are most pronounced in developing countries. While much urbanization in the global South is unplanned, there have been occasional attempts at strategic, large-scale urban planning. One example is Abuja, Nigeria, a new city with origins in a 1970s Master Plan. Here, we use multi-temporal remote sensing to investigate four decades of urbanization in Abuja, showing the extent to which urban development has matched original intentions. Seven Landsat images from 1975 to 2014 were selected to correspond with Master Plan milestones and turning points in Nigeria’s socio-political development. Land cover classification and change detection results show built-up land increasing rapidly, from 1,167 ha in 1975 to 18,623 ha in 2014, mostly converted from grassland, often via a pioneer bare soil class. Comparing image analysis against the Master Plan shows that, in the early years, Abuja’s development matched broad planning intentions fairly closely. Later, though, unplanned development proliferated, and the city’s resemblance to the Master Plan diminished progressively. Level of adherence to the Master Plan varied widely according to the system of government. Notably, after long-term military rule was replaced by a democratic government around the turn of the millennium, unplanned development increased sharply.https://www.mdpi.com/2072-4292/12/7/1112urbanizationglobal Southland cover classificationchange detectionMaster Planunplanned development |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ibrahim A. Gumel Paul Aplin Christopher G. Marston Jeremy Morley |
spellingShingle |
Ibrahim A. Gumel Paul Aplin Christopher G. Marston Jeremy Morley Time-Series Satellite Imagery Demonstrates the Progressive Failure of a City Master Plan to Control Urbanization in Abuja, Nigeria Remote Sensing urbanization global South land cover classification change detection Master Plan unplanned development |
author_facet |
Ibrahim A. Gumel Paul Aplin Christopher G. Marston Jeremy Morley |
author_sort |
Ibrahim A. Gumel |
title |
Time-Series Satellite Imagery Demonstrates the Progressive Failure of a City Master Plan to Control Urbanization in Abuja, Nigeria |
title_short |
Time-Series Satellite Imagery Demonstrates the Progressive Failure of a City Master Plan to Control Urbanization in Abuja, Nigeria |
title_full |
Time-Series Satellite Imagery Demonstrates the Progressive Failure of a City Master Plan to Control Urbanization in Abuja, Nigeria |
title_fullStr |
Time-Series Satellite Imagery Demonstrates the Progressive Failure of a City Master Plan to Control Urbanization in Abuja, Nigeria |
title_full_unstemmed |
Time-Series Satellite Imagery Demonstrates the Progressive Failure of a City Master Plan to Control Urbanization in Abuja, Nigeria |
title_sort |
time-series satellite imagery demonstrates the progressive failure of a city master plan to control urbanization in abuja, nigeria |
publisher |
MDPI AG |
series |
Remote Sensing |
issn |
2072-4292 |
publishDate |
2020-03-01 |
description |
Urbanization is a global phenomenon, but its negative effects are most pronounced in developing countries. While much urbanization in the global South is unplanned, there have been occasional attempts at strategic, large-scale urban planning. One example is Abuja, Nigeria, a new city with origins in a 1970s Master Plan. Here, we use multi-temporal remote sensing to investigate four decades of urbanization in Abuja, showing the extent to which urban development has matched original intentions. Seven Landsat images from 1975 to 2014 were selected to correspond with Master Plan milestones and turning points in Nigeria’s socio-political development. Land cover classification and change detection results show built-up land increasing rapidly, from 1,167 ha in 1975 to 18,623 ha in 2014, mostly converted from grassland, often via a pioneer bare soil class. Comparing image analysis against the Master Plan shows that, in the early years, Abuja’s development matched broad planning intentions fairly closely. Later, though, unplanned development proliferated, and the city’s resemblance to the Master Plan diminished progressively. Level of adherence to the Master Plan varied widely according to the system of government. Notably, after long-term military rule was replaced by a democratic government around the turn of the millennium, unplanned development increased sharply. |
topic |
urbanization global South land cover classification change detection Master Plan unplanned development |
url |
https://www.mdpi.com/2072-4292/12/7/1112 |
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