What's required are actually very significant structural changes. Veterans suicides are the result of war, which is mass killing normalized by false mythology. And it not enough to just say that's a bad idea, the problem is deeply rooted in the core global paradigm which is fundamentally uncivilized. You can't just say that hegemony is bad, you need an alternative, which is a very difficult task.
The problem with traffic deaths is again, structural. You are mixing 3000 pound vehicles, most of which contain only one passenger, with pedestrians in the same space. You have humans driving them.
The solution is small autonomous vehicles completely separated from pedestrians. This is very hard, but possible, and the materials wasted on oversized vehicles that are underutilized, office buildings that are mostly empty, incredibly poor density, etc. can also be used for that purpose.
The problem with traffic deaths is again, structural. You are mixing 3000 pound vehicles, most of which contain only one passenger, with pedestrians in the same space. You have humans driving them.
The solution is small autonomous vehicles completely separated from pedestrians. This is very hard, but possible, and the materials wasted on oversized vehicles that are underutilized, office buildings that are mostly empty, incredibly poor density, etc. can also be used for that purpose.
Cities should actually be entirely redesigned.