This study investigates the relationship between urban spatial structures, environmental hazard exposures, and human mobility networks in 20 US metropolitan areas. Using location-based data, the researchers constructed human mobility networks and analyzed them in conjunction with urban heat characteristics. The results reveal the existence of "urban heat traps" in most cities, where residents of high-heat areas primarily visit other high-heat areas. Cities like Los Angeles, Boston, and Chicago exhibited pronounced heat trap patterns. The study also identified a smaller percentage of mobility patterns leading to heat escalation and heat escapes. The findings offer insights into urban heat exposure and human network dynamics, informing urban design and planning for improved health and sustainability.

Xinke Huang, Yuqin Jiang, Ali Mostafavi