PAUWESInstitute for Water and Energy Sciences including Climate Changehttp://repository.pauwes-cop.net/handle/1/52024-03-28T17:20:47Z2024-03-28T17:20:47ZMAINSTREAMING SUSTAINABILITY IN PUBLIC SPACE: FORMULATING ENERGY STRATEGIES THROUGH URBAN DESIGN IN GABORONE, BOTSWANAPUSO, Thabang Tumohttp://repository.pauwes-cop.net/handle/1/4972022-06-02T02:00:45Z2021-11-16T00:00:00ZMAINSTREAMING SUSTAINABILITY IN PUBLIC SPACE: FORMULATING ENERGY STRATEGIES THROUGH URBAN DESIGN IN GABORONE, BOTSWANA
PUSO, Thabang Tumo
As cities embrace climate change adaptation and mitigation, it has become critical to address energy issues in public spaces in the quest to achieve sustainable urban development. However, sustainability projects in the built environment primarily utilise “techno-fixes” and often neglect the placemaking and socio-economic benefits of responsible energy consumption. Energy strategies are treated as an afterthought that comes as a retrofit in the design of the public realm (Ozgun, 2020). Urban design is defined as the art of making better places for people and public life. It involves a thought process of arranging spaces and infrastructure in the built environment to create functional places for human activity (Abd Elrahman & Asaad, 2020). This study asserts that sustainable communities do not come about accidentally but are thoughtfully created. The current trend in the design of public spaces by built environment experts in Botswana undervalues the usefulness and ability of energy to improve the sustainability of these places. However, if seen as a self-organising state where people congregate to interact and gain knowledge from their environment, the public realm provides a powerful ground to shape and direct society towards a sustainable energy lifestyle (Ozgun, 2020). Through urban design interventions, this study proposes a design framework to rethink energy strategies in the public realm, that address environmental issues relating to renewable energy transition; economic issues relating to cost saving; social issues relating to a vibrant lifestyle; and placemaking issues relating to functionality and aesthetics.
2021-11-16T00:00:00ZDEVELOPMENT OF A GIS-BASED SUPPORT TOOL FOR INTEGRATED WATER RESOURCES MANAGEMENT: A CASE STUDY OF THE RIVER AGNEBY BASIN, SOUTH OF CÔTE D’IVOIREKOFFI, Christ Herberthttp://repository.pauwes-cop.net/handle/1/4962022-06-02T02:00:44Z2021-11-20T00:00:00ZDEVELOPMENT OF A GIS-BASED SUPPORT TOOL FOR INTEGRATED WATER RESOURCES MANAGEMENT: A CASE STUDY OF THE RIVER AGNEBY BASIN, SOUTH OF CÔTE D’IVOIRE
KOFFI, Christ Herbert
Climate change, rapid population growth, anthropogenic land use changes, can be classified
among global phenomena that put enormous pressure on water resources. Côte d’Ivoire, like
most West African countries, has adopted the Integrated Water Resources Management
(IWRM) framework in order to manage its water resources sustainably. This notwithstanding,
water resource managers of Agneby River Basin do not have technical tools to enhance
effective and sustainable management of water resources within the basin. To address this
problem, we proposed to develop a GIS tool to support IWRM and decision making in the
Agneby River Basin. This coastal basin, with a surface area 8525.84 km², is located in the
southern part of Cote d’Ivoire. By utilizing Geographic Information Systems (GIS), a relevant
tool for water resources management, we first set up a spatial database which is administered
through PostgreSQL relational database management software. Subsequently, we added the
PostGIS extension to PostgreSQL to enable the spatial dimension of the database. The
objective of this database is to fill the data gaps in the catchment area. We then carried out
thematic mapping of spatial entities covering relevant thematic areas (i.e., administrative,
water, infrastructure, etc.) which are necessary for managing the water resources of the basin.
In order to provide improved access of the information to relevant stakeholders, partners, and
the community, we also developed a Web GIS platform that provides web-based maps and GIS
functionality. It is anticipated that this will improve organisational productivity, communicate
vital information and engage decision-makers. Although the current version of the Web GIS
platform we developed is a prototype based on free and open-source tools and software, it can
be further developed to achieve the long-term objective of being a water information system
for the Agneby River Basin.
2021-11-20T00:00:00ZINVESTIGATING THE IMPACT OF PREPAID METERS ON COMMUNAL WATER POINTS IN MALAWI: A CASE STUDY OF LILONGWE PER-URBAN AREAS.CHIUMYA, Donhttp://repository.pauwes-cop.net/handle/1/4952022-06-02T02:00:43Z2021-11-17T00:00:00ZINVESTIGATING THE IMPACT OF PREPAID METERS ON COMMUNAL WATER POINTS IN MALAWI: A CASE STUDY OF LILONGWE PER-URBAN AREAS.
CHIUMYA, Don
Water is usually obtained from communal water points such as kiosks in Lilongwe's peri-urban
areas. Increased indebtedness, which resulted in more waterpoints being disconnected,
prompted the Lilongwe Water Board to implement a new prepaid metering system, known in
Malawi as the E-Madzi system, in order to provide access to water 24 hours a day, seven days
a week and increase revenue collection. The purpose of this study was to look at the impact of
prepaid meters on communal water points in three communities: Kawale 1, Kawale 2, and
Mchezi. The study's goals were to examine the impact of prepaid meters on water affordability,
people's perceptions of the new system, the influence of prepaid meters on revenue collection,
and the reliability of the prepaid metering system. A total of 111 households who uses prepaid
metering systems were sampled, a questionnaire and focus group discussion were used to
collect data. The findings revealed that 98.2 percent of the sampled households were pleased
with the new system because it has made water more affordable and people can access water
on a daily basis, while the remaining 1.8 percent were dissatisfied because it does not allow
residents to draw water on credit because they must pay before use, and there is low pressure
at the water point when the weather is cloudy. Finally, this study recommended that the
Lilongwe Water Board should consider re-sizing the system in order to calculate the energy
daily requirement which will ensure water access even during the cloudy days
2021-11-17T00:00:00ZHydraulic modeling of flood risk on the scale of an African agglomeration in Cote d’IvoireSALEH, Oumarhttp://repository.pauwes-cop.net/handle/1/4942022-06-02T02:00:42Z2021-11-30T00:00:00ZHydraulic modeling of flood risk on the scale of an African agglomeration in Cote d’Ivoire
SALEH, Oumar
In the context of urban flood control, it is essential to develop tools and methods to model
surface runoff at the scale of the agglomeration.
The process of flooding is relatively common in some regions of the world, Africa remains a
continent with particular concerns focused on urban flooding for the unprecedented
urbanization, which increases the vulnerability of human societies to flooding. The city of
Abidjan, like all African metropolises, is known for its high level of urbanization, which causes
enormous damage every year during the two rainy seasons, and flooding remains a major
problem today. This risk affects several districts of the capital including the Riviera-Palmeraie
district although it is a residential district par excellence and inhabited by the wealthiest Ivorian
class. In this study, a hydrodynamic modeling of the district was carried out in order to simulate
extreme events and a better knowledge of the attributes of the flow in the urban fabric would
have important impacts in a more precise mapping of the risks and thus in their prevention. The
flow simulation was performed using the SW2D (Shallow Water 2D) "classical" and "porosity"
computational codes developed within the HydroSciences Montpellier (HSM) laboratory. In
the absence of accurate and reliable field data, the fine model is considered as a reference model
to validate the porosity model. The work of this research is to set up two models, the first was
the realization of a fine mesh of the district to make a first simulation and to have more precise
results; the second part was the realization of a coarser mesh for the porosity model. The
developed model allows to reduce the time of calculation considerably, not only in terms of
calculation but also for the creation of the mesh. It is therefore fast enough to consider the
production of real-time alerts. Then the model allows a comparison between the two models.
The fine model allowed a hydrodynamic reference modeling to validate the porosity model.
The results obtained in this thesis, present a point of divergence of a few centimeters between
the two models because of the absence of high precision topographic data and the adjustment
of the parameters of the porosity model
2021-11-30T00:00:00Z