How were speed limits determined?

Statutory speed limits are established by State legislatures for specific types of roads (e.g., Interstates, rural highways, urban streets) and can vary from State to State. Posted speed limits (sometimes called regulatory speed limits) are those that are sign-posted along the road and are enforceable by law.

Why are there speed limits?

The primary purpose of speed limits is to enhance safety by reducing risks imposed by drivers speed choices. A related function of speed limits is to provide the basis for enforcement and sanctions for those who drive at speeds excessive for conditions and endanger others.

Why are speed limits set?

Speed limits establish a reasonable and safe operating speed for a specific section of roadway.

Why are speed limits what they are?

What are speed limits and why are they important?

Speed limits help limit your speed, which in turn reduces the amount of time it takes for you to react to changes in the roadway or flow of traffic and makes it easier for you to stop your vehicle if needed.

What are the speed limits in the United States today?

Speed Limits Today. The fastest road in America is a 40-mile stretch of a toll road between Austin and San Antonio that legally allows drivers to travel at 85 mph. Speed limits have shifted across America as cars have become faster and roads have become safer.

What happens if you go over the speed limit while driving?

Driving at a higher speed increases your risk of losing control of your car while trying to adapt to changing road conditions. If you drive above the speed limit, keep in mind that you’ll need additional time to stop your car or react to changing road conditions safely.

Which country has the highest speed limit on motorways?

The world’s highest speed limit is in the United Arab Emirates, which is 160 km/h (99 mph) on two motorways. There is also no speed limit in some parts of the autobahn roads in Germany and on the Isle of Man.