Ironically, the presence of lots of little keyholes results in a sprawlier urban form that results in things being spread further apart and funnels traffic into

Ironically, the presence of lots of little keyholes results in a sprawlier urban form that results in things being spread further apart and funnels traffic into massive, wide arteries, which encourages in-city speeding habits. Not blaming you for picking what works for your family, it's just a "tragedy of the commons" scenario. Old fashioned streetcar-suburb cities that are just dense, gridded traffic are safer. For example, in Toronto: https://www.thestar.com/news/gta/our-most-dangerous-streets-huge-new-collision-database-points-to-toronto-s-postwar-suburbs/article_4a2bf97a-7bc0-5f77-836a-63917c80176e.html https://www.thestar.com/news/gta/our-most-dangerous-streets-... Since the article is paywalled, here's the Tweet showing the dangerous-intersections map: https://twitter.com/TorontoStar/status/1509864492703916037 https://twitter.com/TorontoStar/status/1509864492703916037 And here's a blogpost showing the age of neighborhoods built: https://idragovic.wordpress.com/2016/05/24/toronto-building-construction-dates/ https://idragovic.wordpress.com/2016/05/24/toronto-building-... So basically, at least in the case of Toronto, postwar suburbs with winding and dead-end residential roads with wide, high-speed corridors produce dangerous intersections.