And degrade the quality of life of every resident who regularly has a car trip living in one of those neighborhoods by making them circle 1-3 blocks of 1-ways and right only intersections (or whatever other solution you implement for making it worse to drive through).
You're basically saying that thousands of people ought to have their lives made marginally worse so you can claim success because the city loses 1.24 lives per year to cars instead of the 1.39 before the change or something like that. This entire attitude is predicated on the idea that experts working at the statistical level know better than the people who have to live it. That's preposterous. Get bent.