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4. Characterization of urban built and natural environments with high-resolution satellite images and unsupervised deep learning

Author

Metzler, Antje Barbara, primary, Nathvani, Ricky, additional, Sharmanska, Viktoriia, additional, Bai, Wenjia, additional, Muller, Emily, additional, Moulds, Simon, additional, Agyei-Asabere, Charles, additional, Adjei-Boadi, Dina, additional, Kyere-Gyeabour, Elvis, additional, Tetteh, Jacob Doku, additional, Owusu, George, additional, Agyei-Mensah, Samuel, additional, Baumgartner, Jill, additional, Robinson, Brian E, additional, Arku, Raphael E, additional, and Ezzati, Majid, additional

Published
2022
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5. Socio-demographic and neighbourhood factors influencing urban green space use and development at home: A population-based survey in Accra, Ghana.

Author

Amegah, A. Kofi, Yeboah, Kelvin, Owusu, Victor, Afriyie, Lucy, Kyere-Gyeabour, Elvis, Appiah, Desmond C., Osei-Kufuor, Patrick, Annim, Samuel K., Agyei-Mensah, Samuel, and Mudu, Pierpaolo

Subjects
PUBLIC spaces, SOCIODEMOGRAPHIC factors, ECOLOGICAL houses, SUSTAINABLE development, CITIES & towns, PERCEIVED benefit
Abstract

In Sub-Saharan Africa and other developing regions, there has been very little systematic attempt to document the uses and perceived health benefits of urban green spaces in cities and the factors influencing usage. We therefore sought to establish the availability, accessibility and use of urban green spaces, and the perceived health benefits in an African population. We also ascertained the factors influencing use and development of green spaces at home. A population-based survey was conducted in Accra, the capital city of Ghana, spanning 11 Municipal and 3 Sub-Metropolitan areas. Multivariable binary logistic regression adjusting for potential confounders was used to establish the association between green space use and development at home, and socio-demographic, neighbourhood and health factors. Odds ratios and their corresponding 95% confidence intervals were estimated from the models. Several socio-demographic (gender, age, marital status, occupation, ethnicity, religion) and district-level (population density, income level, neighbourhood greenness) factors were associated with use of green spaces and development of green spaces at home in Accra. Residents who were worried about depletion of green spaces in their community were more likely to develop green spaces at home. In neighbourhoods with moderate and high level of greenness, residents were less likely to develop green spaces at home. Five-percent and 47% of green space users in Accra reported witnessing an improvement in their physical and mental health, respectively, from use of green spaces. The study findings can inform policy action for promoting use and development of green spaces in African cities and for mitigating depletion and degradation of the limited urban greenery. [ABSTRACT FROM AUTHOR]

Published
2023
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6. Between Policy and Risk Communication

Author

Kyere-Gyeabour, Elvis and Agyei-Mensah, Samuel

Subjects
air pollution, media, public health
Abstract

The supplementary data is for the paper; Between Policy and Risk Communication: Coverage of Air Pollution in Ghanaian Newspapers. This data contains two tables showing readership of Ghanaian newspapers and a table of air pollution related headlines in Ghana.

Published
2022
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10. Health impacts of changes in travel patterns in Greater Accra Metropolitan Area, Ghana

Author

Garcia, Leandro, Johnson, Rob, Johnson, Alex, Abbas, Ali, Goel, Rahul, Tatah, Lambed, Damsere-Derry, James, Kyere-Gyeabour, Elvis, Tainio, Marko, De Sá, Thiago H, and Woodcock, James

Subjects
Traffic incident, Travel, Health impact assessment, Mode shift, 1. No poverty, Transportation, Walking, Ghana, 3. Good health, Bicycling, 13. Climate action, Air Pollution, 11. Sustainability, Active transportation, Humans, human activities
Abstract

BACKGROUND: Health impact assessments of alternative travel patterns are urgently needed to inform transport and urban planning in African cities, but none exists so far. OBJECTIVE: To quantify the health impacts of changes in travel patterns in the Greater Accra Metropolitan Area, Ghana. METHODS: We estimated changes to population exposures to physical activity, air pollution, and road traffic fatality risk and consequent health burden (deaths and years of life lost prematurely - YLL) in response to changes in transportation patterns. Five scenarios were defined in collaboration with international and local partners and stakeholders to reflect potential local policy actions. RESULTS: Swapping bus and walking trips for car trips can lead to more than 400 extra deaths and 20,500 YLL per year than travel patterns observed in 2009. If part of the rise in motorisation is from motorcycles, we estimated an additional nearly 370 deaths and over 18,500 YLL per year. Mitigating the rise in motorisation by swapping long trips by car or taxi to bus trips is the most beneficial for health, averting more than 600 premature deaths and over 31,500 YLL per year. Without significant improvements in road safety, reduction of short motorised trips in favour of cycling and walking had no significant net health benefits as non-communicable diseases deaths and YLL benefits were offset by increases in road traffic deaths. In all scenarios, road traffic fatalities were the largest contributor to changes in deaths and YLL. CONCLUSIONS: Rising motorisation, particularly from motorcycles, can cause significant increase in health burden in the Greater Accra Metropolitan Area. Mitigating rising motorisation by improving public transport would benefit population health. Tackling road injury risk to ensure safe walking and cycling is a top priority. In the short term, this will save lives from injury. Longer term it will help halt the likely fall in physical activity.

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