READ: “Policies to help people walk & cycle such as low-traffic neighbourhoods can create public health benefits as much as 100 times greater than the cost of the schemes, a long-term study has concluded.” AND the benefits continue to grow even higher over time.
https://www.theguardian.com/uk-news/2024/mar/08/health-gains-of-low-traffic-schemes-up-to-100-times-greater-than-costs-study-finds