The article reports on Oslo's achievement of zero pedestrian, cyclist, and child traffic deaths in 2019, with only one driver death. The discussion reveals that this is likely due to a combination of factors, including safer cars, better road infrastructure, and urban planning decisions. Oslo has implemented measures such as traffic calming, bike lanes, and restrictions on private cars in the city center. The city's approach to road safety is multifaceted and has contributed to the significant reduction in traffic fatalities.