bloomberg.com

Fewer than 3,000 people died in Japanese crashes in 2021, compared to almost 43,000 in the United States. On a per capita basis, Japan had just 2.24 deaths per 100,000 residents, less than a fifth the US rate of 12.7 per 100,000.

Interesting read (to me). Not all the difference is due to better commuter infrastructure. No street parking and lighter cars in the city play a role too.