Because when the road is built for a safe speed target of 65, then the limit is set at 55 instead, yeah you get people who are breaking the legal limit but not the actual safe speed.
tl;dr: design speeds and speed limits are not necessarily related. “Selection of a posted speed is an operational decision for which the owner and operator of the facility is responsible.”
But then why don’t we all shoplift packs of gum every week?
Speeding is the one law everyone agrees is fun and acceptable to break a bit, despite being more dangerous than many actual crimes.
Because when the road is built for a safe speed target of 65, then the limit is set at 55 instead, yeah you get people who are breaking the legal limit but not the actual safe speed.
Edit: forgot a link: https://www.fhwa.dot.gov/design/standards/151007.cfm
tl;dr: design speeds and speed limits are not necessarily related. “Selection of a posted speed is an operational decision for which the owner and operator of the facility is responsible.”
Do you think that every or most roads have the wrong speed limit? I sure don’t.