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Articles on Infrastructure

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A bridge and road submerged by floodwaters from the North Fork of the Kentucky River in Jackson, Kentucky, July 28, 2022. Leandro Lozada/AFP via Getty Images

What is a flash flood? A civil engineer explains

As recent deluges in St. Louis and Kentucky show, flash flooding can happen in urban and rural areas, with deadly results in either setting.
Lorries blocked at the border between DRC and Zambia. Poor roads are a major stumbling block to trade. Lucien Kahozi/AFP via Getty Images)

Zambia can meet growing food demand: how to fix what’s standing in its way

Producers in Zambia should be getting more for their crops, and buyers in East Africa should be paying less, alleviating food price spikes.
Saralake Estates Mobile Home Park in Sarasota, Florida. Jeffrey Greenberg/Universal Images Group via Getty Images

Debunking stereotypes about mobile homes could make them a new face of affordable housing

Manufactured housing – the preferred name for what were once called mobile homes – has changed dramatically in recent decades. Three planning experts call for giving it a new look.
Low-quality asphalt binder — the glue that holds roads together — can leave roads prone to cracking in cold temperatures. (Shutterstock)

How Canada’s oilsands can help build better roads

The quality of asphalt binder — the glue that holds roads together — influences their condition. Binder made from Alberta bitumen is low in waxes and could extend pavement lifespan.
Gas prices are at record highs. AP Photo/Gene J. Puskar

Federal gas tax holiday: Biden says it will provide ‘a little bit of relief’ – but experts say even that may be a stretch

We asked four experts to explain what gas taxes are used for and whether waiving them will make much of a difference to American households.
A future marked by the Metaverse may fundamentally change how we operate on a daily basis. (Marc Lee/Wikimedia Commons)

How the metaverse could change the purpose and feel of cities

New virtual realities are changing the way we interact with our urban spaces. How will the metaverse make some urban amenities redundant and others indispensable?
Tourists cross a hanging bridge in the treetops of Costa Rica’s Monteverde cloud forest. Matthew Williams-Ellis/Universal Images Group via Getty Images

Protecting biodiversity – and making it accessible – has paid off for Costa Rica

Tourism revenues account for almost 10% of Costa Rica’s gross domestic product. New research shows that charismatic wildlife is necessary but not sufficient to attract ecotourists.

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