Assuming the roads are safe and clear, how fast can you legally go? Well, it depends on where you are. In a posted beach zone, the speed limit is 15mph. In business or urban districts, the speed limit is 30mph. Specific sections of highway have a speed limit of 70mph, but many other areas, including interstate highways not otherwise posted, have a speed limit of 60mph, and some roads have a lower speed limit at night than during the day.

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 crashing into the Alamo.