Wednesday, September 4, 2024

The cost of expanding US roads

Also today: Hong Kong's arts hub sells land to stay afloat, and the brutal economics of reaching net zero.

The US has spent billions of dollars each year repairing and expanding the highway network. A new study finds, however, that the costs of expanding roads in urban areas are three times greater than its potential benefits.

The researchers considered direct government spending as well as external costs like traffic deaths and the opportunity cost of using urban land for roadways. The amount of land taken up by roads would fill the total area of West Virginia, and is worth about $5.4 trillion, according to the study. I break down the findings today on CityLabThe Outsized Cost of Expanding US Roads

— Maria Clara Cobo

More on CityLab

Hong Kong's Arts Hub Turns to Selling Land to Stay Afloat
In a city where real estate has long ruled the economy and the cultural scene remains fledgling, the West Kowloon Cultural District is deepening its reliance on property in order to generate revenues. 

When Climate Funds Pay for Highway Expansion
Several US states are tapping a federal carbon reduction program to fund highway projects, arguing that adding vehicle lanes can bring emissions down.

The Brutal Economics of Reaching Net Zero
Ramping down global emissions is achievable in terms of cost. But until the US and other rich countries assume a war footing, we don't stand a chance of meeting critical climate goals.

The history of automotive horns

"In the 1920s, car horns were singled out as the most obnoxious thing about urban sound, and they became a political issue in campaign after campaign."
Matthew F. Jordan
Communications professor at Pennsylvania State University
Jordan's new book Danger Sound Klaxon! details the rise and fall of the world's most annoying car horn, and how it changed the rules of the road.

What we're reading

  • Grenfell Tower fire report: who was at fault and what was landlord's role? (Guardian)
  • Can the US census keep up with climate-driven displacement? (Grist)
  • Hydrogen-powered skyscraper set for Egypt's new capital (CNN)
  • Wildfires are contaminating water supplies (Wired)
  • How Black Americans in the South boldly defied Jim Crow to build business empires of their own (Smithsonian)

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More from Bloomberg

  • Economics Daily for what the changing landscape means for policy makers, investors and you
  • Green Daily for the latest in climate news, zero-emission tech and green finance
  • Hyperdrive for expert insight into the future of cars
  • Design Edition for CityLab's newsletter on design and architecture — and the people who make buildings happen
  • Work Shift for exclusive insight and data on the future of work

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