scholarly journals Classifying and Mapping Periurban Areas of Rapidly Growing Medium-Sized Sub-Saharan African Cities: A Multi-Method Approach Applied to Tamale, Ghana

Land ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 40 ◽  
Author(s):  
Hanna Karg ◽  
Rafael Hologa ◽  
Johannes Schlesinger ◽  
Axel Drescher ◽  
Gordana Kranjac-Berisavljevic ◽  
...  
Keyword(s):  
Land Use ◽  
Rural Areas ◽  
Urban Areas ◽  
Spatial Scales ◽  
Urban Expansion ◽  
Urban Land Use ◽  
The Body ◽  
Sub Saharan Africa ◽  
Urban Rural ◽  
Sub Saharan

Periurban areas of growing cities in developing countries have been conceptualised as highly dynamic landscapes characterised by a mixture of socioeconomic structures, land uses and functions. While the body of conceptual literature on periurban areas has significantly increased over the past two decades, methods for operationalising these multi-dimensional concepts are rather limited. Yet, information about the location and areal extent of periurban areas is needed for integrated planning in the urban–rural interface. This article presents the results of a study aiming at classifying and mapping periurban areas along the urban–rural gradient of Tamale, a medium-sized city in Ghana. The study used a quantitative, multi-dimensional methodology involving the following as core elements: (1) a relative measure of how urban a place and its people are in terms of services, infrastructure and livelihoods (urbanicity index); (2) the diversity of households regarding their livelihoods and access to urban services; and (3) land use dynamics. Therefore, data from a household survey, as well as land use and other secondary geospatial data were collected and analysed at different spatial scales. The findings suggested that the periurban space consists of two main zones. Inner periurban areas are driven by urban expansion and the conversion of non-urban into urban land use is most visible here. These areas exhibit higher levels of socioeconomic diversity, compared to both rural and urban areas. Outer periurban areas are less dynamic in terms of land use change and exhibit lower building densities, and compared with rural areas, hold stronger links to the city related to the movement of people and goods. The spatial analysis revealed that periurban areas develop mainly along major transport corridors across administrative divisions, as well as in the form of periurban islands in the rural zone. This study set out to extend existing methodologies to map urban and periurban development in medium-sized cities in sub-Saharan Africa, useful for urban and regional planning beyond administrative boundaries.

Do urban areas still have advantages over rural areas in antenatal care discontinuity in Sub-Saharan Africa?

2021 ◽  
Vol 9 (2) ◽  
pp. 27-35
Author(s):  
Franklin Bouba Djourdebbé ◽  
Keyword(s):  
Maternal Health ◽  
Antenatal Care ◽  
Rural Areas ◽  
Urban Areas ◽  
Sub Saharan Africa ◽  
Health Policies ◽  
Antenatal Visit ◽  
Urban Rural ◽  
Health Survey Data ◽  
Sub Saharan

In sub-Saharan Africa, among the small proportion of women who had at least one antenatal visit, many of them no longer return to ensure continuity of antenatal care. This antenatal care discontinuity is a matter of serious concern for maternal health. Using Demographic and Health Survey data collected between 2000 and 2016 in 26 sub-Saharan countries, this study aims to analyse urban/rural differences in antenatal care discontinuity. Although in the majority of countries, urban areas have considerable advantages in terms of antenatal care continuity, there are countries where urban/rural differences are not significant, as well as atypical countries (Rwanda, Gambia and Zambia) where antenatal care discontinuity is higher in urban areas compared to rural areas. This study is a contribution to tackle the complex disparities in the discontinuity of care during pregnancy in maternal health policies in sub-Saharan Africa. Keywords: Maternal health, antenatal care, urban, rural, sub-Saharan Africa.

scholarly journals Mapping 20 Years of Urban Expansion in 45 Urban Areas of Sub-Saharan Africa

2021 ◽  
Vol 13 (3) ◽  
pp. 525
Author(s):  
Yann Forget ◽  
Michal Shimoni ◽  
Marius Gilbert ◽  
Catherine Linard
Keyword(s):  
Case Studies ◽  
Urban Areas ◽  
Urban Expansion ◽  
Local Population ◽  
Sub Saharan Africa ◽  
Annual Growth Rate ◽  
Urban Dynamics ◽  
Mapping Approach ◽  
Sub Saharan ◽  
The Impact

By 2050, half of the net increase in the world’s population is expected to reside in sub-Saharan Africa (SSA), driving high urbanization rates and drastic land cover changes. However, the data-scarce environment of SSA limits our understanding of the urban dynamics in the region. In this context, Earth Observation (EO) is an opportunity to gather accurate and up-to-date spatial information on urban extents. During the last decade, the adoption of open-access policies by major EO programs (CBERS, Landsat, Sentinel) has allowed the production of several global high resolution (10–30 m) maps of human settlements. However, mapping accuracies in SSA are usually lower, limited by the lack of reference datasets to support the training and the validation of the classification models. Here we propose a mapping approach based on multi-sensor satellite imagery (Landsat, Sentinel-1, Envisat, ERS) and volunteered geographic information (OpenStreetMap) to solve the challenges of urban remote sensing in SSA. The proposed mapping approach is assessed in 17 case studies for an average F1-score of 0.93, and applied in 45 urban areas of SSA to produce a dataset of urban expansion from 1995 to 2015. Across the case studies, built-up areas averaged a compound annual growth rate of 5.5% between 1995 and 2015. The comparison with local population dynamics reveals the heterogeneity of urban dynamics in SSA. Overall, population densities in built-up areas are decreasing. However, the impact of population growth on urban expansion differs depending on the size of the urban area and its income class.

scholarly journals Analyses of Nocturnal Temperature Cooling-Rate Response to Historical Local-Scale Urban Land-Use/Land Cover Change

2011 ◽  
Vol 50 (9) ◽  
pp. 1872-1883 ◽  
Author(s):  
Winston T. L. Chow ◽  
Bohumil M. Svoma
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Cooling Rate ◽  
Rural Areas ◽  
Urban Areas ◽  
Local Scale ◽  
Urban Land Use ◽  
Cooling Rates ◽  
Near Surface ◽  
Over Time

AbstractUrbanization affects near-surface climates by increasing city temperatures relative to rural temperatures [i.e., the urban heat island (UHI) effect]. This effect is usually measured as the relative temperature difference between urban areas and a rural location. Use of this measure is potentially problematic, however, mainly because of unclear “rural” definitions across different cities. An alternative metric is proposed—surface temperature cooling/warming rates—that directly measures how variations in land-use and land cover (LULC) affect temperatures for a specific urban area. In this study, the impact of local-scale (<1 km2), historical LULC change was examined on near-surface nocturnal meteorological station temperatures sited within metropolitan Phoenix, Arizona, for 1) urban versus rural areas, 2) areas that underwent rural-to-urban transition over a 20-yr period, and 3) different seasons. Temperature data were analyzed during ideal synoptic conditions of clear and calm weather that do not inhibit surface cooling and that also qualified with respect to measured near-surface wind impacts. Results indicated that 1) urban areas generally observed lower cooling-rate magnitudes than did rural areas, 2) urbanization significantly reduced cooling rates over time, and 3) mean cooling-rate magnitudes were typically larger in summer than in winter. Significant variations in mean nocturnal urban wind speeds were also observed over time, suggesting a possible UHI-induced circulation system that may have influenced local-scale station cooling rates.

MIGRATION, TRANSLOCAL NETWORKS AND SOCIO-ECONOMIC STRATIFICATION IN NAMIBIA

Africa ◽  
2011 ◽  
Vol 81 (4) ◽  
pp. 606-627 ◽  
Author(s):  
Clemens Greiner
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
Sub Saharan Africa ◽  
Urban Migration ◽  
Urban Networks ◽  
Rural And Urban Areas ◽  
Economic Stratification ◽  
Rural And Urban ◽  
Sub Saharan ◽  
Price Differences

ABSTRACTRural–urban migration and networks are fundamental for many livelihoods in sub-Saharan Africa. Remittances in cash and kind provide additional income, enhance food security and offer access to viable resources in both rural and urban areas. Migration allows the involved households to benefit from price differences between rural and urban areas. In this contribution, I demonstrate that rural–urban networks not only contribute to poverty alleviation and security, but also further socio-economic stratification. This aspect has been ignored or neglected by most scholars and development planners. Using ethnographic data from Namibia, I have adopted a translocal perspective on migration and stratification, focusing on the resulting impact in rural areas where modern urban forms of stratification, induced by education and income from wage labour, are on the increase.

scholarly journals Sexual Autonomy and Self-reported Sexually Transmitted Infections Among Sub-saharan African Women in Sexual Unions

2021 ◽  
Author(s):  
Collins Adu ◽  
Aliu Mohammed ◽  
Eugene Budu ◽  
James Boadu Frimpong ◽  
Justice Kannor Tetteh ◽  
...  
Keyword(s):  
Sexually Transmitted Infections ◽  
Rural Areas ◽  
Urban Areas ◽  
Study Data ◽  
Sub Saharan Africa ◽  
African Women ◽  
Odds Ratios ◽  
Sexual Autonomy ◽  
Sexually Transmitted ◽  
Sub Saharan

Abstract Background Sexually transmitted infections (STIs) remain a major public health challenge worldwide. Despite the importance of sexual autonomy in the prevention and control of sexual and reproductive health disorders such as STIs, there are limited studies on the possible relationship between women’s sexual autonomy and self-reported STIs, especially in sub-Saharan Africa (SSA). This study, therefore, examined the association between sexual autonomy and self-reported STIs among women in sexual unions in SSA.Methods Data from the Demographic and Health Survey (DHS) of 31 countries in SSA conducted between 2010 and 2019 were analysed. A total of 234,310 women in sexual unions were included in the study. Data were analysed using binary logistic regression models and the results were presented as crude odds ratios (cORs) and adjusted odds ratios (aORs) at 95% confidence interval (CI). Results The prevalence of self-reported STIs among women in sexual unions in SSA was 5.8%. Approximately 83.0% of the women surveyed had sexual autonomy. Women who had no sexual autonomy were less likely to have self-reported STIs (cOR=0.52, CI: 0.46-0.54), compared to those who had sexual autonomy. Additionally, higher odds of self-reported STIs were found among women aged 25-29, compared to those aged 15-19 (aOR= 1.21, CI: 1.09-1.35); those who reside in urban areas, compared to those who reside in rural areas (aOR= 1.51, CI: 1.37-1.66) and those who were cohabiting, compared to those who were married (aOR= 1.65, CI: 1.52-1.79). On the other hand, lower odds of self-reported STIs were found among women who were exposed to newspapers (aOR= 0.89, CI: 0.82-0.95), those whose partners had primary education (aOR= 0.84, CI: 0.78-0.91), those who were not exposed to radio (aOR= 0.84, CI: 0.79-0.89), and working women (aOR= 0.86, CI: 0.80-0.93). Conclusion Findings from this study suggest that sexual autonomy is a significant predictor of self-reported STIs among women in sexual unions in SSA. Thus, instituting policies and programs that empower women and improve their levels of sexual autonomy may result in increased self-reporting of symptoms associated with STIs which subsequently help in minimising STI-related complications. Also, policies aimed at enhancing women’s sexual autonomy may reduce the burden of STIs in SSA, especially among women in sexual unions.

scholarly journals Clinical Features of Rheumatoid Arthritis in a Sub-Saharan African Population: A 308 Study Cases in Senegal

2014 ◽  
Vol 4 (1) ◽  
pp. 23-28
Author(s):  
Souhaibou Ndongo ◽  
Abdoulaye Pouye ◽  
Emeric Azankpan ◽  
Mourtalla M. Ka ◽  
Thérèse Moreira Diop
Keyword(s):  
Rheumatoid Arthritis ◽  
Rural Areas ◽  
Urban Areas ◽  
Cross Sectional Study ◽  
Sicca Syndrome ◽  
Sub Saharan Africa ◽  
Cross Sectional ◽  
Early Management ◽  
Delay In Diagnosis ◽  
Sub Saharan

Background: Rheumatoid arthritis, formerly rare in sub-Saharan Africa, is becoming increasingly reported. The objective study determines the epidemiological, clinical and biological features of rheumatoid arthritis at diagnosis. Methods: A cross-sectional study conducted at the rheumatology outpatient department of Aristide Le Dantec Teaching Hospital of Dakar in Senegal. Results: Three hundred eight patients with rheumatoid arthritis according, to American College of Rheumatology 1987 criteria, were included: 273 women and 35 men (ratio of 7:8). Median age was 41 years (Q1: 31; Q3: 53 years); predominant age group was 30-40 years. Ninety-three percent resided in urban areas and 7% in rural areas. Family history of chronic inflammatory arthritis was reported by 35.1% of patients. Thirty-nine percent of patients initially consulted a traditional healer. On admission, the median Disease Activity Score 28 was 6.5 (Q1: 5.5; Q3: 7.3). Rheumatoid arthritis was very active in 81.1% and a positive factor in 84% of patients. Cyclic citrullinated peptide antibodies assessed in 116 patients; 95 reported positive (81.9%). Of 169 patients, at least one extra-articular manifestation was presented; the most common, anemia and sicca syndrome. Conclusion: Rheumatoid arthritis was characterized by an important delay in diagnosis, a polyarticular presentation, and a high positivity of immunological markers. Extra-articular manifestations included mainly anemia and sicca syndrome. Early management and a better understanding of rheumatoid arthritis in sub-Saharan Africa are required.

scholarly journals An analysis of the learning performance gap between urban and rural areas in sub-Saharan Africa

2021 ◽  
Vol 41 (2) ◽  
pp. 1-17
Author(s):  
Sugata Sumida ◽  
Keisuke Kawata
Keyword(s):  
Rural Areas ◽  
Family Characteristics ◽  
Sub Saharan Africa ◽  
School Characteristics ◽  
Persistent Problem ◽  
Learning Gap ◽  
Urban Rural ◽  
Sub Saharan ◽  
Urban And Rural Areas ◽  
Over Time

The learning gap between urban and rural areas is a persistent problem in many sub-Saharan African countries. Previous studies have found that the urban-rural learning gap is attributed to the fact that student characteristics and school resources are different in urban and rural areas. Our study updates this finding by using the latest dataset and further examines the changes in the attributed sources over time. Using 15 educational systems in sub-Saharan Africa, we examined 4 potential sources of the gap: student, family, teacher, and school characteristics. Our results reveal that the urban-rural learning gap in recent years is attributed mostly to differences in school and family characteristics. We also found that the attribution remains the same over time from 2004 to 2011 and that the attribution to family characteristics’ differences became slightly greater than the one to school characteristics’ differences.

scholarly journals Understanding the Factors That Are Associated with Motorcycle Crash Severity in Rural and Urban Areas of Ghana

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
William Agyemang ◽  
Emmanuel Kofi Adanu ◽  
Steven Jones
Keyword(s):  
Rural Areas ◽  
Traffic Congestion ◽  
Urban Areas ◽  
Urban Traffic ◽  
Sub Saharan Africa ◽  
Crash Data ◽  
Rural And Urban Areas ◽  
Rural And Urban ◽  
Run Off ◽  
Sub Saharan

Like many countries in sub-Saharan Africa, Ghana has witnessed an increase in the use of motorcycles for both commercial transport and private transport of people and goods. The rapid rise in commercial motorcycle activities has been attributed to the problem of urban traffic congestion and the general lack of reliable and affordable public transport in rural areas. This study investigates and compares factors that are associated with motorcycle crash injury outcomes in rural and urban areas of Ghana. This comparison is particularly important because the commercial use of motorcycles and their rapid growth in urban areas are a new phenomenon, in contrast to rural areas where people have long relied on motorcycles for their transportation needs. Preliminary analysis of the crash data revealed that more of the rural area crashes occurred under dark and unlit roadway conditions, while urban areas recorded more intersection-related crashes. Additionally, it was found that more pedestrian collisions happened in urban areas, while head-on collisions happened more in rural areas. The model estimation results show that collisions with a pedestrian, run-off-road, and collisions that occur under dark and unlit roadway conditions were more likely to result in fatal injury. Findings from this study are expected to help in crafting and targeting appropriate countermeasures to effectively reduce the occurrence and severity of motorcycle crashes throughout the country and, indeed, sub-Saharan Africa.

scholarly journals Dynamic simulation of urban expansion based on cellular automata and logistic regression model: Case study of Hyrcanian region of Iran

2016 ◽  
Author(s):  
Meisam Jafari ◽  
Seyed Masoud Monavari ◽  
Hamid Majedi ◽  
Ali Asghar Alesheikh ◽  
Mirmasoud Kheirkhah Zarkesh
Keyword(s):  
Land Use ◽  
Logistic Regression ◽  
Cellular Automata ◽  
Urban Development ◽  
Rural Areas ◽  
Urban Expansion ◽  
Urban Land ◽  
Urban Land Use ◽  
High Rate ◽  
Hyrcanian Forests

Although, promotion of urbanization culture in recent decades has made inevitable development of cities in the world, however, the development can be guided in a direction that leave, to the extent possible, minimum socioeconomic and environmental impacts. For this, it is required to first forecast auto-spreading orientation of cities and suburbs in rural areas over time and then avoid shapeless growth of cities. This paper is an attempt to develop a dynamic hybrid model based on logistic regression (LR), Markov chain (MC), and cellular automata (CA) for prediction of future urban sprawl in fast-growing cities. The model was developed using 12 widely-used urban development criteria, whose significant coefficient was determined by logistic regression, and validated by relative operating characteristic (ROC) analysis. The validated model was run in Guilan, a tourist province in northern Iran with a very high rate of urban development. For this, changes in the area of urban land use were detected over the period of 1989 to 2013 and then, future sprawl of the province was forecasted by the years 2025 and 2037. The analysis results revealed that the area of urban land use was increased by more than 1.7 % from 36012.5 ha in 1989 to 59754.8 ha in 2013, and the area of Caspian Hyrcanian forestland was reduced by 31628 ha. The results also predicted an alarming increase in the rate of urban development in the province by the years 2025 and 2037, during which urban land use is predicted to develop 0.9 % and 1.38 %, respectively. The development pattern is expected to be uneven and scattered, without following any particular direction. The development will occur close to the existing or newly-formed urban basements as well as around major roads and commercial areas. This development, if not controlled, will lead to the loss of 13863 ha of Hyrcanian forests and if the trend continues, 21013 ha of Hyrcanian forests and 20208 ha of Barren/open lands are expected to be destroyed by the year 2037. In general, the proposed model is an efficient tool for the support of urban planning decisions and facilitates the process of sustainable development of cities by providing decision-makers with an overview on future development of cities where the growth rate is very fast.

How Mobile Technologies Are Leading to Economic Development in Sub-Saharan Africa

2021 ◽  
pp. 1719-1726
Author(s):  
Nigel McKelvey ◽  
Adam Crossan ◽  
Kevin Curran
Keyword(s):  
Mobile Devices ◽  
Mobile Technology ◽  
Rural Areas ◽  
Urban Areas ◽  
Sub Saharan Africa ◽  
Mobile Technologies ◽  
African Countries ◽  
The Difference ◽  
Sub Saharan ◽  
Technology Focus

Mobile technology today is increasingly being used to help improve underdeveloped and developing areas such as sub-Saharan Africa. With the statistics showing the number of adults in Africa owning mobile devices steadily increasing, mobile technology has been a popular area of interest to use to help improve areas such as healthcare and education throughout African cities and rural areas. Common that ways mobile technology is being used to help the residents of sub-Saharan Africa are in the sectors of health care and education. Mobile technologies being used in these areas whilst simple are incredibly effective and successful in helping to better the quality of health in education in sub-Saharan Africa. Many of the projects and systems developed using mobile technology focus mainly on urban areas. While reports state the huge increase in the number of those using mobile devices in Africa, along with the large estimated increase in the coming years, the difference between rural African countries and countries which contain urban cities is substantial.

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