Yes, 100%. The bigger ones are far easier to deal with, you can spot them and maybe they even move a little slower so you can swat them. DC mosquitoes are very sneaky

I disagree about "vision zero" which is just the catchy slogan for the projects aimed at making streets safer, in general. Will there ever be zero deaths? No probably not, but they have to slap a slogan on it and I don't think that's a terrible one. But your point about DC being stressful I think is a good one. Now I'm not an expert on this, but DC (and surrounding area) has some of the worst traffic design I've ever had the displeasure of trying to navigate. I suspect that it leads to a lot of frustration which leads to bad and unsafe behaviors. I further suspect that fixing some of those things would in fact help everyone get where they're going faster and make things safer for drivers and pedestrians alike. Like if you know the light is on a 5 minute cycle and missing it is going to add that much time to your commute, that's a pretty big incentive to run it.