https://blogs.worldbank.org/en/transport/what-are-benefits-and-costs-different-road-speeds
Wskazuje, że:
studies shows that economically optimal travel speed for motorways are between 73 km/h and 85 km/h, well below the 100 km/h to 130 km/h speed limits often applied globally to motorways
Podobnie https://blogs.worldbank.org/en/transport/building-streets-life-many-benefits-lower-speed-limits mówi:
Even small reductions in speed can significantly enhance fuel efficiency. The European Environment Agency found that reducing motorway speed limits from 120 to 110 km/h amounted to 12-18% in
@Login_login: da się i w kontrolowanych warunkach trwa to kilkadziesiąt lat, a nie tysiące.
https://www.national-geographic.pl/artykul/czego-o-ludziach-i-psach-moze-nauczyc-nas-dna-lisow