Assuming the roads are safe and clear, how fast can you legally go? Well, it depends on where you are. Specific sections of highway have a speed limit of 65, 70, or even 75mph, but all other highways, including those not otherwise posted, have a speed limit of 55mph. School zones and residential districts usually have their own lower speed limits as set for by local statutes.

Other than that, you are likely to see speed limit signs indicating a wide range of limits based on a variety of conditions, such as constructions zones, school zones, or half-finished-then-abandoned bridge zones. Just remember to always drive no faster than the speed limit (and slower still if conditions are poor) so that you don’t go ramming into the rear end of a hatchback or flying off into a swamp.