The 15-minute city is a popular topic these days. So here is a recent study that used GPS data from 40 million US mobile phones to estimate the percentage of consumption-related trips that actually adhere to this concept. The unsurprising result:

The overwhelming majority of Americans have never experienced anything resembling a 15-minute city. The median resident, we found, makes only 14% of their consumption trips within a 15-minute walking radius.

There is, of course, regional variation. For New York City, the data suggests that 42% of consumption-related trips occur within a 15-minute walking radius. Whereas in more sprawling cities like Atlanta, it's only 10% of trips. Again, this is not surprising. But it begs the question: What should we do?

The challenge is that 15-minute cities generally require built environments that are dense, conducive to walking, and filled with a concentration of different amenities. And this is more or less the opposite of the prototypical suburban model, where the car and single-use zoning tends to spread everything out.

The 15-minute city is a popular topic these days. So here is a recent study that used GPS data from 40 million US mobile phones to estimate the percentage of consumption-related trips that actually adhere to this concept. The unsurprising result:

The overwhelming majority of Americans have never experienced anything resembling a 15-minute city. The median resident, we found, makes only 14% of their consumption trips within a 15-minute walking radius.

There is, of course, regional variation. For New York City, the data suggests that 42% of consumption-related trips occur within a 15-minute walking radius. Whereas in more sprawling cities like Atlanta, it's only 10% of trips. Again, this is not surprising. But it begs the question: What should we do?

The challenge is that 15-minute cities generally require built environments that are dense, conducive to walking, and filled with a concentration of different amenities. And this is more or less the opposite of the prototypical suburban model, where the car and single-use zoning tends to spread everything out.