Oslo, Norway had a single road-related death in 2019
According to Aftenposten, lower speed limits and inner-city vehicle restrictions have sharply curbed the number of pedestrian and vehicle-related deaths since 1975. In fact, in 2019 there was no children killed in traffic accidents (translated to English from Norwegian):
[...] no children aged 0-15 are killed in traffic in Norway in 2019, according to recent figures from the Norwegian Public Roads Administration.
And, there was was only a single road-related death:
Pretty remarkable decline in road deaths. The USA statistics for 2019 road-related deaths don't exist yet, but in 2018, there is a pretty big shocking comparison. There was a total of 36,560 driving-related deaths according to The Department of Transportation (PDF).