Lynn Vande Stouwe

After decades of rapid urbanization, the emirate is now contending with a wide range of challenges to its environment and infrastructure.

Yonah Freemark looks at how to increase rail ridership without adding trains.

The District Department of Transportation recently released detailed plans for the new system, which has been in the making for more than 14 years.

Bob Herbert warns that the country is allowing its water systems to deteriorate despite a widely evidenced need for upgrades.

Hillary Brown argues that the infrastructure priorities of the American Reinvestment and Recovery Act further the carbon-intensive status quo and miss an unprecedented opportunity to build innovative, green systems.