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Haiti

Mapping and measuring urban places: Are we there yet? (Part 1/2)

David Mason's picture
Source: Deuskar, C., and Stewart B.. 2016. “Measuring global urbanization using a standard definition of urban areas: Analysis of preliminary results” World Bank
This satellite image shows Sao Paolo's estimated “urban areas” based on a WorldPop gridded population layer. Areas in yellow are areas with at least 300 people per km2 and a known settlement size of 5,000 people. Red areas represent a population density threshold of at least 1,500 people per km2 and a known settlement size of 50,000 people.
There remains a surprising amount of disagreement over precisely what “urban” means despite the ubiquity of the term in our work. Are urban areas defined by a certain amount of artificial land cover such as permanent buildings and roads? Or are they more accurately described as spatially concentrated populations? The answer often depends on what country you are in, as their administrative definitions of urban areas can vary widely across and between these two dimensions.
 
Without a globally consistent measure of urban areas, it can be difficult to track changes in built-up areas (land surface coverage comprised of buildings and roads) and population growth across time and space. This impacts how policymakers may understand and prioritize the challenges cities face and what investments or reforms may be needed. In a new paper, “Bright Lights, Big Cities: a Review of Research and Findings on Global Urban Expansion,” I provide a brief introduction to some of the current approaches for measuring urban expansion and review the comparative findings of some recent studies.
The UN’s World Urbanization Prospects (WUP), perhaps the most comprehensive and widely cited measure of urbanization across the world, draws from a compilation of country-level population totals based on administrative definitions. A key weakness with this set is that since each country defines “urban” differently, it is difficult to accurately compare one country’s urbanization to another, as well as to estimate the urban population of a group of countries or the world itself. Recent work has provided more sophisticated ways to measure urban growth and expansion using both satellite map data and careful application of population data.

Eradicating household air pollution will pay for itself

Ernesto Sanchez-Triana's picture

© Isabelle Schäfer/World Bank

Globally 2.9 million people died from household air pollution in 2015, caused by cooking over foul, smoky fires from solid fuels such as wood, charcoal, coal, animal dung, and agricultural crop residues. Well over 99% of these deaths were in developing countries, making household air pollution one of their leading health risk factors.

Many women across the world spend their days and evenings cooking with these fuels. They know the fumes are sickening, which is why some cook in a separate outhouse or send the children to play while they cook. Sadly, these small actions cannot fully protect the young. As for the women themselves, they suffer incredible morbidity and mortality from household air pollution.

Three misconceptions in the way of better housing policies

Luis Triveno's picture
Also available in: 中文

Photo by Dominic Chavez / World Bank

​While the need for housing is widespread, individually people have different needs—depending on whether they are single, married, senior citizens, families with children, or members with disabilities. Despite the best of intentions of policymakers, "a roof overhead" remains an elusive goal for a large majority of the world’s people. Most households cannot afford even the cheapest house that fits their needs and qualifies as “decent,” and no government alone can close this gap with subsidies. Nor are we on track to build the 300 million new houses needed to close the housing gap by 2030.

What’s missing? At least three misconceptions stand in the way of better housing policies: 
 

A Lifetime Approach To Preventing Violence In Latin America

Jorge Familiar's picture
A prevention program against crime and violence in Zacatecoluca, El Salvador, supports sporting activities for the children from this municipality. Photo: Victoria Ojea/World Bank

100 Days After Matthew, Seven Years After the ‘Quake’: Is Haiti More Resilient?

Mary Stokes's picture

The world’s third most affected country in terms of climatic events, Haiti seeks to better manage natural hazards to improve resilience


Haiti is highly vulnerable to natural hazards. Situated within the north Atlantic hurricane belt, andsat on top of the boundary between the Caribbean and North American plates, the risks are constant. However, this does not mean that disasters are inevitable.

The farmers, engineers, and health workers helping rebuild Haiti after Matthew

Mary Stokes's picture
We visited the most affected region to see how communities are recovering after the storm on October 4th, 2016.

Two months after Hurricane Matthew devastated the southern provinces of Haiti, rebuilding efforts are underway. In some areas, shiny new corrugated steel panels glimmer under the sun where the hurricane stripped away roofs.

Let’s build the infrastructure that no hurricane can erase

Luis Triveno's picture
Hati after Hurrican Matthew
Hurricane Matthew destroyed an estimated 90% of homes in Haiti's Grande Anse department. Stronger public knowledge infrastructure can help better facilitate post-disaster recovery.
(Photo: EU Delegation to the Republic of Haiti)
The news from Haiti about the aftermath of Hurricane Matthew is a familiar story: more chaos, rubble, and loss of life from another natural disaster. Though recent improvements to Haiti’s infrastructure at the local level kept the death toll at 534—3,000 died in the 2004 hurricane; more than 200,000 in the 2010 earthquake—the number is still way too high.
 
Worldwide, natural disasters claimed 1.3 million lives between 1992 and 2012, with earthquakes accounting for 60%of disaster deaths in low- and middle-income countries, where the preponderance of sub-standard housing increases the risks. Today, 1.2 billion people live in substandard housing. By 2030, this figure will almost triple.
 
The good news is that most of those deaths and property losses can be prevented. In 2003, for example, within three days of each other, earthquakes of similar magnitude struck Paso Robles, California and Bam, Iran. The death toll in Bam was 40,000—nearly half the city’s population. Two people died in Paso Robles.
 
Even when destruction does take place, proper planning and measures can ensure a speedy recovery.

Retrofitting: A housing policy that saves lives

Luis Triveno's picture
Building earthquake-resistant housing in Peru. Photo: USAID/OFDA, Auriana Koutnik/Flickr
When a hurricane, earthquake or other natural disaster strikes a poor country, families too often suffer a double tragedy: the loss of loved ones and their most valuable (and sometimes only) asset, their home. In the aftermath of the 7.0 magnitude earthquake in Haiti in 2010, which killed more than 260,000 people, 70% of asset losses were related to housing. Ecuador faces billions of dollars in reconstruction costs from last April’s 7.8 earthquake, which killed 900 and injured almost 28,000. If Peru were hit by an 8.0-degree earthquake, an estimated 80% of potential economic losses would involve housing.
 
And while nature’s fury does not distinguish between urban and rural areas, a large majority of disaster losses are concentrated in cities, where they disproportionately affect the poor. This creates a great challenge for low and middle-income countries.  In Latin America and the Caribbean, 200 million people—1/3 of the population—live in informal settlements, where most dwellings don’t comply with construction codes and home insurance is non-existent. Perhaps unsurprisingly, LAC’s informal districts also account for the majority of disaster-related deaths in the region.
 

One Part of Something Bigger

Israel Mallett's picture

It has been almost four years since I first became involved with the regional public-private dialogue initiative, the Caribbean Growth Forum (CGF). In June 2012, I walked into the conference room at University of the West Indies,  Mona Campus for the Launch of the first phase of the initiative and there was something electric in the air. It was new and fresh, but old fears lingered; was this to become 'just another regional talk-shop?'

Wide-eyed and optimistic I was determined that for my small part it wouldn't turn out that way.

Why school enrollment is not enough: A look inside Haiti’s classrooms

Juan Baron's picture
This page in: Haitian Kreyol
Students reading in class. Photo: ©World Bank

In Haiti, about 90% of primary school-aged children are enrolled in school.  While still falling short of universal enrollment, this is a big improvement over just two decades ago.  But enrollment is just the first step in building human capital – many children will repeat a grade, and about half will drop out before completing primary school, leaving the school system without having mastered even basic language and math skills.  Why does participation in school produce so little?


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