Marchetti’s Constant, the principle that average commutes remain around 30 minutes, influences urban design. As transportation improves, cities expand rather than reduce commute times. This historical pattern has led to sprawling metropolises. Future solutions to congestion and urban sprawl include high-speed rail, self-driving cars, telecommuting, and re-densifying city centers to reduce environmental impacts.

Source: https://bigthink.com/strange-maps/marchettis-constant/

Source: https://www.bloomberg.com/news/features/2019-08-29/the-commuting-principle-that-shaped-urban-history