Roads tend to have a speed where people feel comfortable. In theory, road engineers design roadways to match the desired speed. In practice, that doesn’t alwa

Roads tend to have a speed where people feel comfortable. In theory, road engineers design roadways to match the desired speed. In practice, that doesn’t always happen. Even worse, cities/towns have been known to lower the speed limit to drive revenue. Edit, some links: https://beyondtheautomobile.com/2021/02/08/what-is-design-speed-and-how-does-it-affect-our-streets/ https://beyondtheautomobile.com/2021/02/08/what-is-design-sp... https://www.strongtowns.org/journal/2021/8/6/the-key-to-slowing-traffic-is-street-design-not-speed-limits https://www.strongtowns.org/journal/2021/8/6/the-key-to-slow... Usually, when people talk about the topic, they’re trying to calm local traffic. But the concept applies to highways where speed limits can be pretty arbitrary. Plenty of interstate where 80+mph feels safe, but is posted at 55 or 65.