Developers love the cul-de-sac, but for the rest of us it’s one of the least practical and efficient ways to design streets.
Northern Ghana was treated as a periphery outpost by colonial administrators.
Ghana’s northern region would be more developed now had it received a fairer share of colonial investments.
Volunteers distributed bottled water after Jackson, Mississippi’s water treatment plant failed during flooding in August 2022.
Brad Vest/Getty Images
A heat wave that pushed California’s power grid to the limit, and the water system failure in Jackson, Mississippi, are just two examples.
Flash flooding made a mess in Dallas in August 2022.
AP Photo/LM Otero
Flood risks are rising as the climate warms. The risks are complex, as a levee or new roadway in one place can worsen flooding somewhere else.
Private car accidents dominate crash numbers in Ghana.
Lewis Clark/Wikimedia Commons
Fatal road injuries are among the top 10 causes of death in Ghana.
Low-quality asphalt binder — the glue that holds roads together — can leave roads prone to cracking in cold temperatures.
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.
Tackling climate change is a budget priority, but will we see the major investment in cycling infrastructure and public transport that is one obvious solution?
Fresh grizzly bear tracks in Yellowstone National Park.
Jacob W. Frank, NPS/Flickr
Parks and refuges are important for conservation, but without connections, they’re like islands. Linking them by protecting land in between makes it possible for wildlife to move over bigger areas.
Tourists cross a hanging bridge in the treetops of Costa Rica’s Monteverde cloud forest.
Matthew Williams-Ellis/Universal Images Group via Getty Images
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.
London was rated 2021’s most congested city.
The road leading to the Etosha National Park East Gate at Fort Namutoni, Etosha National Park, Namibia.
Getty Images/ Alexander Hafemann
The presence of roads, even inside protected areas, may pose a significant threat to species.
Prime Minister Scott Morrison driving a hydrogen-fuelled car in Melbourne.
AAP Image/Pool, William West
We need to rapidly reduce global emissions before 2030. Developing hydrogen for low-emissions road transport won’t happen fast enough.
The Denali Highway as it crosses the Susitna River.
Joe Sohm/Visions of America/Universal Images Group via Getty Images
Alaska is warming faster than any other U.S. state, and that’s causing problems, a team of bridge engineers and social scientists explains. The infrastructure bill in Congress would offer some help.
Short fixes won’t last.
Interstate 980 cuts off West Oakland, Calif., at top, from other Oakland neighborhoods.
Jane Tyska/Digital First Media/East Bay Times via Getty Images
Two urban policy experts explain why taking down highways that have isolated low-income and minority neighborhoods for decades is an important part of the pending infrastructure bill.
Constructing barge canals took a massive investment that didn’t pay off.
New York State Archives
The lasting problems of infrastructure aren’t of need or construction, but of overbuilding, delayed costs and the challenges of thinking ahead.
A bald eagle on Baranof Island in Alaska’s Tongass National Forest.
Wolfgang Kaehler/LightRocket via Getty Images
The Tongass National Forest in Alaska, a focus of political battles over old-growth logging and road-building in forests for decades, has received new protection from the Biden administration.
A white-tailed deer crossing a road in Nova Scotia, Canada.
Sat-navs could one day warn motorists when they drive through high-risk areas.
In 1872, John Gast painted ‘American Progress,’ showing trains and roads spreading across the American West.
John Gast, Library of Congress via Wikimedia Commons
Government investment in roads, railroads and other public services has always involved social programming, both for good and for ill.
Railway bridge over the river on the border with Tanzania.
Governments must ensure that transport infrastructure is developed with the ability to cope with current and future climatic shifts.