Q&A: Urban doom loop—what it is and how cities can stop it

Recent images of downtown San Francisco—emptied of office workers now dialing in remote and filled with wandering homeless people—has struck fear for the future of urban areas. A Columbia University professor coined the ...

Developing a 3D liquefaction hazard map

Korea Institute of Civil Engineering and Building Technology has successfully developed a "three-dimensional liquefaction hazard map" that visually presents ground liquefaction forecasts in the event of an earthquake.

Conspiracy theories on '15-minute cities' flourish

Urban planners are fending off abuse fuelled by conspiracy theories about their "15-minute city" regeneration projects which suspicious social media users claim are the road to "climate lockdowns".

Pandemic bike-share boom crossed socioeconomic lines

Reliable transportation is crucial for reaching basic necessities like employment, education, and health care, but racial and economic factors often create barriers to transportation access. Many city bike-share programs ...

What has America learned since Hurricane Katrina? Not enough

Before Hurricane Katrina hit New Orleans in 2005, evacuation planners rarely considered the needs of carless and vulnerable populations—low-income, elderly, or young individuals with specific needs or tourists without a ...

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