scholarly journals Monitoring spatio-temporal compliance of urban development plans using GIS and remote sensing in Nairobi City County, Kenya

2021 ◽  
Vol 13 (3) ◽  
Author(s):  
Owen Karanja Mwaura ◽  
Patroba Achola Odera
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Urban Development ◽  
Assessment Process ◽  
Gis And Remote Sensing ◽  
Industrial Activities ◽  
Compliance Assessment ◽  
Development Control ◽  
Development Plans ◽  
Spatio Temporal

Development control aims to provide an urban environment with quality service delivery, optimal use of available resources, conservation, and reduction of haphazard urban growth. At the core of development control is the compliance assessment process, which ensures adherence to regulatory policies. The City of Nairobi compliance assessment process lacks considerable enforcement capacity and this has led to uncontrolled development. This study uses GIS and remote sensing to assess the spatio-temporal compliance of development plan(s) in Nairobi City County. Land use/cover of Nairobi City County from 1976 to 2019 were obtained from classified Landsat images at a nearly 10-year interval of six epochs (1976, 1984, 1993, 2002, 2010 and 2019). The zoning plan maps were digitised and superimposed on the classified images to determine compliance, taking subsequent reviews of spatial development plans into account. The non-compliance rates for residential, commercial, and industrial activities varied at 57~84%, 63~81% and 65~92%, respectively, during the study period (1976–2019). A comparison between the planned and non-compliant areas showed that residential, commercial, and industrial activities occurred mostly outside planned areas from 1976 to 2019. The analysis showed a considerably less increase in non-compliance on commercial land use. This is so because of the review done on the zoning plan for Nairobi City in 2005. The industrial land use non-compliance was constantly increasing over the study period, an indicator of the ever-rising rate of urbanisation in the Nairobi metropolitan area. This study illustrates the power of rapid spatial mapping in monitoring compliance of urban development plans for informed decision making. 

scholarly journals Assessment of Land Use and Vegetative Cover in Kano Metropolis (from 1975-2015) Employing GIS and Remote Sensing Technology

2020 ◽  
Vol 27 (2) ◽  
pp. 1-7
Author(s):  
M. Haruna ◽  
M.K. Ibrahim ◽  
U.M. Shaibu
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Agricultural Land ◽  
Landsat 8 ◽  
Vegetative Cover ◽  
Gis And Remote Sensing ◽  
Remote Sensing Technology ◽  
Sensing Technology ◽  
Agricultural Planning ◽  
Bare Land

This study applied GIS and remote sensing technology to assess agricultural land use and vegetative cover in Kano Metropolis. It specifically examined the intensity of land use for agricultural and non agricultural purpose from 1975 – 2015. Images (1975, 1995 and 2015), landsat MSS/TM, landsat 8, scene of path 188 and 052 were downloaded for the study. Bonds for these imported scenes were processed using ENVI 5.0 version. The result indicated five classified features-settlement, farmland, water body, vegetation and bare land. The finding revealed an increase in settlement, vegetation and bare land between 1995 and 2015, however, farmland decreased in 2015. Indicatively, higher percentage of land use for non agricultural purposes was observed in recent time. Conclusively, there is need to accord surveying the rightful place and priority in agricultural planning and development if Nigeria is to be self food sufficient. Keywords: Geographic Information System, Agriculture, Remote sensing, Land use, Land cover

scholarly journals Study on Coastline Changes of Xiamen City Based on Remote Sensing Images

2019 ◽  
Vol 136 ◽  
pp. 05003
Author(s):  
Yanfang Qin ◽  
Lin Ye ◽  
Siming Chen
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Land Use Changes ◽  
Remote Sensing Data ◽  
Length Change ◽  
Vector Data ◽  
Remote Sensing Images ◽  
Change Rate ◽  
Xiamen City ◽  
Spatio Temporal

Based on the Landsat remote sensing data, this paper had monitored the coastline changes of Xiamen city in recent 20 years. By extracting the coastline vector data of 1999, 2005, 2011 and 2017 respectively, the spatio-temporal characteristics of coastline changes on coastline length, change rate and land change area were analyzed, and the main driving factors were analyzed combined with the land use changes in the coastal swing area. The results show that: the total length of Xiamen's coastline increased from 235.16 km to 264.98 km during 1999-2017, and the land area increased from 1558.84 km2 to 1594.29 km2. The most significant changes occurred in Xiang'an district and Huli district with the coastline length increased by 16.38% during 2011-2017 and 22.14% during 1999-2005 respectively, while the changes were not very conspicuous in other areas. According to the land use changes in the coastal areas, the coastline changes in Xiamen City were mainly related to the expansion of construction land and port constructions in Haicang district, Xiang'an district and Huli district, as well as the expansion of aquaculture in the Xiang'an district.

scholarly journals Detection of Urban Development in Uyo (Nigeria) Using Remote Sensing

Land ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 102 ◽  
Author(s):  
Etido Essien ◽  
Samimi Cyrus
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Time Series ◽  
Urban Development ◽  
Economic Structure ◽  
Natural Vegetation ◽  
Thematic Mapper ◽  
Series Data ◽  
Infrastructure Development ◽  
Vegetation Loss

Uyo is one of the fastest-growing cities in Nigeria. In recent years, there has been a widespread change in land use, yet to date, there is no thorough mapping of vegetation change across the area. This study focuses on land use change, urban development, and the driving forces behind natural vegetation loss in Uyo. Based on time series Landsat Thematic Mapper (TM)/Enhanced Thematic Mapper Plus (ETM+)/Operational Land Imager (OLI) image data, the relationships between urban land development and its influencing factors from 1985 to 2018 were analyzed using remote sensing (RS) and time series data. The results show eight land use cover classes. Three of these (forest, swamp vegetation, and mixed vegetation) are related to natural vegetation, and three (sparse built-up, dense built-up, and borrow pit) are direct consequences of urban infrastructure development changes to the landscape. Swamp vegetation, mixed vegetation, and forest are the most affected land use classes. Thus, the rapid growth of infrastructure and industrial centers and the rural and urban mobility of labor have resulted in an increased growth of built-up land. Additionally, the growth pattern of built-up land in Uyo corresponds with socioeconomic interviews conducted in the area. Land use changes in Uyo could be attributed to changes in economic structure, urbanization through infrastructure development, and population growth. Normalized difference vegetation index (NDVI) analysis shows a trend of decreasing vegetation in Uyo, which suggests that changes in economic structure represent a key driver of vegetation loss. Furthermore, the implementation of scientific and national policies by government agencies directed at reducing the effects of urbanization growth should be strengthened, in order to calm the disagreement between urban developers and environmental managers and promote sustainable land use.

Urban land use intensity assessment: The potential of spatio-temporal spectral traits with remote sensing

2018 ◽  
Vol 85 ◽  
pp. 190-203 ◽  
Author(s):  
Thilo Wellmann ◽  
Dagmar Haase ◽  
Sonja Knapp ◽  
Christoph Salbach ◽  
Peter Selsam ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Urban Land ◽  
Urban Land Use ◽  
Land Use Intensity ◽  
Intensity Assessment ◽  
Spatio Temporal

‘Environment’ and Planning: A Tale of the Mundane and the Sublime

1994 ◽  
Vol 12 (4) ◽  
pp. 437-452 ◽  
Author(s):  
George Myerson ◽  
Yvonne Rydin
Keyword(s):  
Land Use ◽  
Environmental Policy ◽  
Land Use Planning ◽  
Planning System ◽  
Development Control ◽  
The Sublime ◽  
Growing Body ◽  
Development Plans ◽  
Control Decision ◽  
Planning Discourse

This paper contributes to the growing body of work on planning discourse. In the context of the current ‘greening’ of British land-use planning, it poses the question: “How is the term ‘environment’ articulated within planning discourse?” With the use of material from development plans and development-control decision letters, an analysis is made of the term ‘environment’ which distinguishes ‘mundane’ and ‘sublime’ interpretations. The function of the texts analysed is then related to the dominant meaning given to the term, This raises further questions concerning the current preoccupation with using the land-use planning system to implement environmental policy and identifies the problems of moving between strategic planning and detailed development-control levels, a problem reflected in and compounded by the distinct operation of planning discourse at the two levels.

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