The Impact of Peri-Urbanisation on Housing Development: Environmental Quality and Residents\u27 Productivity in Ibeju-Lekki, Lagos

This paper assesses the impact of peri-urbanisation on housing, environmental quality and residents\u27 socio-demography in Ibeju-Lekki peri-urban in Lagos, Nigeria. Primary data was collected through administration of 370 questionnaires to household heads in purposively selected sixteen settlements in the study area while secondary data was sourced from spatial images, land use maps and satellite images of the study area. Quantitative data was analysed using descriptive statistics while qualitative data was analysed using time series and satellite image analysis. The result shows a spatial expansion due mainly to increased housing development, a multi-dimensional environmental and socio-cultural challenges that impacts negatively on the quality of living and a literate, high income group dominance in the selected peri-urban settlements in Ibeju-Lekki. The study recommends a creation of a database to capture the pattern of housing development, residents\u27 socio-economic demography and infrastructure needs for intervention in policy design for a sustainable development

Shrimp by-catch species from industrial shrimp trawl fisheries in Lagos, Nigeria coastal waters

A fisheries-dependent surveys was conducted to identify and quantify the species composition of shrimp by-catch and its effect on fishery sustainability. Samples were bought monthly, from October 2009 to June 2010 from landings site, at Apapa-Liverpool market Lagos. 25 fish species belonging to 18 families targeted in other inshore fisheries constituted the by-catch species. The percent of weight compositions of some economically important by-catch species were: Pseudotolithus senegalensis (5.76%),Ilisha africana (14.65%), Pentanemus quinquarius (2.94%), Pteriscion peli (6.60%), Galeoides decadactylus (3.17%), Cynoglossus senegalens is (6.76%) and Chloroscombrus chysurus (10.81%). About 80% of the shrimp by-catch species were juvenile fin fish. However, continuous harvest without appropriate mitigating measures poses a threat to sustainability of coastal capture fisheries. Recommendations are proffered in order to conserve the resources for sustainable development

Assessment and Adaptation of an Appropriate Green Building Rating System for Nigeria.

The practices used in rating green buildings are constantly evolving and differ from place to place; there are fundamental principles that persist from which the rating is derived e.g. siting and structure, design, energy, water and material efficiency, indoor environmental quality, enhancement, operations and maintenance optimization, and  waste and toxic reduction. The essence of green building is an optimization of one or more of these principles. This paper presents a comparative analysis of seven well-known sustainable rating systems – BREEAM, CASBEE, GREEN GLOBES, GREEN STAR, HK-BEAM, IGBC Green Homes and LEED by the perceptions and opinions of stakeholders in Nigeria certified in green building rating systems in an attempt to select and adapt a green building rating system for Nigeria. Various aspects of these systems were scrutinized and analyzed in order to find out the best option for the Nigerian built environment. Based on the findings of this study the green building rating systems LEED which is the dominant system in the United States and Canada is appropriate for Nigeria because it helps costumers determine environmental performance, with strong base, large investments and proven advantages scored the highest with 80 points out of 100 points. Keywords: architecture, built environment, green building rating system, Nigeria green building council, sustainability

Assessment of housing quality in Ibeju-Lekki peri-urban settlement, Lagos State, Nigeria

This article assesses housing quality in Ibeju-Lekki, a peripheral settlement outside Lagos metropolitan region. Using purposive sampling, 370 housing units from clusters of 16 peri-urban settlements constituted the sample size. Primary data was sourced through structured questionnaires, interview (with local planning personnel) and observation schedules adminis-tered through a field survey. Using Statistical Package for Social Sciences, data analysis was done using descriptive analysis to generate frequen cies and percentages on socio-economic profile, neighbourhood quality, locational quality, dwelling quality, and building materials used. Tests of correlation were conducted on the mean of variables of neighbourhood quality, locational quality and building materials, derived through recoding of variables by means of Transform statistical tool, to establish the factors influencing housing quality in the study area. The findings show a significant positive correlation between household income and housing quality. The latter is found to be influenced by respondents’ socio-economic attributes, building materials, neighbourhood quality, and locational quality in the study area. It can be concluded that socio-economic characteristics, predominantly income of households, play a major role in the level of housing quality that can be accessed in the study area. It is, therefore, recommended that the state government and private developers should promote alternative building materials, in order to enhance housing affordability by the low-income group. This will reduce the spread of informal housing development. In addition, the state govern ment should align urban policy to eliminate disparity in infrastructural development which has impacted on poor neighbourhood and locational quality in Lagos peri-urban settlements.&nbsp

Managerial engagement with scenario planning: A conceptual consumption approach

Scenario development is widely used to reduce uncertainty while making decisions in high velocity environments. Despite this fact, managerial fixation on short term performance objectives, their penchant fear of the unpredictable future and their sheer inability to face the alternative futures generated in the scenario planning exercises has led to little value capture from this activity. The paper analyzes the factors that determine the willingness of decision-makers, to be actively involved in scenario planning. The authors suggest that effective incentives to promote the interest in this activity and its impact can be found, if we consider the decision-makers, as 'consumers' of certain ideas, concepts, expectations, and competencies. In particular, the paper hypothesizes and validates the assumptions that the selection of appropriate targets for scenario planning, commitment to achieving them, expectations of positive outcomes, increasing the frequency of scenario planning exercises are more likely to be expressed in the growing interest of managers and stakeholders to develop scenarios. The presented results are tested on the most common - intuitive logic approach to scenario planning. The authors expect future research to go further to empirically test the proposed hypotheses, and if possible, ascertain whether similar hypotheses could be generated in the context of other tried and tested scenario planning methodologies such as the probabilistic modified trends, competitive intelligence and cross impact analysis

The Impact of Peri-Urbanisation on Housing Development: Environmental Quality and Residents' Productivity in Ibeju-Lekki, Lagos

This paper assesses the impact of peri-urbanisation on housing, environmental quality and residents’ socio-demography in Ibeju-Lekki peri-urban in Lagos, Nigeria. Primary data was collected through administration of 370 questionnaires to household heads in purposively selected sixteen settlements in the study area while secondary data was sourced from spatial images, land use maps and satellite images of the study area. Quantitative data were analysed using descriptive statistics while qualitative data was analysed using time series and satellite image analysis. The result shows a spatial expansion due mainly to increased housing development, a multi-dimensional environmental and socio-cultural challenges that impact negatively on the quality of living and a literate, high-income group dominance in the selected peri-urban settlements in Ibeju-Lekki. The study recommends the creation of a database to capture the pattern of housing development, residents’ socio-economic demography and infrastructure needs for intervention in policy design for sustainable development

Environmental Sustainability In Lagos Periphery Housing

Peri-urban residential settlements in Nigerian cities grew phenomenally as a result of rapid urbanisation. But the spontaneous housing settlements are enmeshed in development-driven urban challenges. This study examines the environmental sustainability of a typical peri-urban settlement in Lagos, Ikorodu. A combination of case study based examination and application of International Urban Sustainability Indicators List framework (IUSIL) was used to achieve an integrated research method. Data were collected through primary and secondary sources including observation, structured questionnaires, interview and satellite images. Two stage clusters sampling was used to select 384 household heads as the study population. Quantitative data was done using descriptive analysis while satellite image analysis was used for qualitative data. Investigations were carried out on the state of infrastructure, locational quality and the commuting pattern. Findings show fair environmental sustainability as evidenced by access to public water services, effective transportation system. There was residents’ satisfaction in areas of fresh water, less reliance on automobile and effective transportation system which culminates in less commuting hours in the study area. Dissatisfaction was recorded over inadequate drainage system, poor waste management, resulting in poor environmental quality. Also noted was deviation from the master plan, zoning was not adhered to thereby causing noise pollution due to encroachment of manufacturing industries on residential areas. These findings can be a useful template for all stakeholders in enabling sustainability of emerging settlements in Lagos cities’ periphery

NaijaCoder: Participatory Design for Early Algorithms Education in the Global South

The majority of Nigerian high schoolers have little to no exposure to the basics of algorithms and programming. We believe this trajectory should change as programming offers these students, especially those from indigent backgrounds, an opportunity to learn profitable skills and ignite their passions for problem-solving and critical thinking. NaijaCoder is an organization that is dedicated to organizing a free, intensive summer program in Nigeria to teach the basics of algorithms and computer programming to high schoolers. However, the adoption of computer science curriculum has been especially challenging in countries in the global south that face unique challenges -- such as unstable power supply, internet service, and price volatility. We design a curriculum that is more conducive to the local environment while incorporating rigorous thinking and preparation. Using basic survey designs, we elicit feedback, from the students, designed to further improve and iterate on our curriculum.Comment: Accepted for presentation at the Technical Symposium on Computer Science Education (SIGCSE TS) 202

Length- weight relationships, condition factor (K) and relative condition factor (Kn) of Sparids, Dentex congoensis (Maul, 1954) and Dentex angolensis (Maul and Poll, 1953), in Nigerian coastal water

Length-weight relationship and condition factors were estimated for Dentex congoensis and Dentex angolensis of the family sparidae trawled from Nigeria Coastal water in 2009. A total number of 534 specimens ranging from 7.2 – 3.0 cm in total length and 5.4 – 489.8 g in weight were analyzed. The lengthweight relationship is shown by the following equations: LogW –1.610 + 2.791logL (Dentex congoensis) and LogW = -1.558 + 2.776logL (D angolensis). The two species studied exhibited negative allometric growth (b < 3) with the mean b = 2.78 at p < 0.001. The correlation coefficient (R) values were 0.91 (Dentex congoensis) and 0.98 (D angolensis). The condition factor (K) and relative condition factor (Kn) were determined for each species separately. The condition factor (K) obtained for Dentex congoensis and Dentex angolensis were between 0.86 – 8.04 with mean value of 2.48 ± 0.58 and between 2.06 – 6.13 with mean value of 2.79 ± 0.42 respectively. The relative condition factor (Kn) values were 1.28 ±1.09 (Dentex congoensis) and 1.66 ± 2.44 (Dentex anoglensis). The maximum ‘Kn’ values were recorded during the length at first maturity and there was a general decreased in relative condition factor (Kn) with increase length for the two species