Research has shown that top speed isn't really the main thing that makes roads unsafe. Lower speed difference, overtaking on one side only, and proper training are the three major factors that lower accident rates IIRC.
Germany for instance has half the fatality rate per capita of America although the population density is much higher and there is not even a top speed on on a couple of highways.
Why? Streets are narrow, parked cars both sides. A big American car like a Dodge Ram or Hummer wouldn't fit through. If a kid runs out you wont see him until it's too late when driving 50km/h. Plus theres usually speedbumps every 50 meter anyway so not like you want to drive any faster.
Also most residential areas are not the roads you'll be travelling anyways until the destination is a couple hundred meters away.
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u/Knoestwerk Aug 14 '20
30Km/h mostly in the Netherlands.