It's difficult to make an apples-to-apples comparison with this statistic because the US has more sprawl. Like sure, per-kilometre fatalities may be down, but

It's difficult to make an apples-to-apples comparison with this statistic because the US has more sprawl. Like sure, per-kilometre fatalities may be down, but that says nothing of: 1. The number of non-fatal crashes 2. How much of this incorporates driving on large highways 3. When not on a highway, the degree of traffic in which fatal crashes can't occur (can't get in a high-speed accident in high traffic in New York, for example) Needless to say, the roads of Japan and New Zealand are so different from the US that it isn't exactly clear that this statistic is really informing us of much, really.