Examine the data behind dynamic speed zones. Learn what safety studies show regarding their effectiveness, limitations, and ...

Wondering if you can legally drive 60 mph on your usual route? We break down Iowa’s new speed limit, affected roads and what ...

Every driver needs to respect road signs no matter where they're driving. If you encounter a speed limit sign with an arrow, ...

If you drive, you frequently see and adhere to traffic signs, especially those related to the speed limit. Why are some of ...

Electronic speed limit signs can be a helpful reminder to slow down on the road, but without knowing how they work, the ...

While it may not be the case in every state, some states use an orange diamond on top of speed limit signs. Have you noticed it? Here's what they are for.

For the first time decades, Iowa is taking the brakes off its 55 mph speed limit. Gov. Kim Reynolds signed Senate File 378 ...

New digital speed limit signs are already active on some roads, changing the limit depending on numerous factors. Texas introduces variable speed limits using digital signs after a deadly 2021 pileup.