Yes, the number is zero.
This New Jersey City Has Now Gone 9 Years Without A Traffic Death
Other cities have been trying to replicate Hoboken's Vision Zero traffic safety plan. Will they?
patch.com
But is the number of acceptable deaths zero? Because now trucks are out. So no deliveries. Buses gone. Subways too. E-bikes also. So are we getting rid of all of them as part of your war on cars?