What is the main purpose of speed limit signs?

The main purpose of speed limit signs is to notify drivers of the maximum legal speed limit on a particular road segment. These signs help to regulate traffic flow and ensure safety by indicating the fastest speed at which vehicles can travel under ideal conditions. By adhering to this limit, drivers contribute to reducing the risk of accidents caused by excessive speed.

Understanding the maximum speed helps drivers navigate safely, as going over this limit can lead to legal penalties and increase the likelihood of severe crashes. While other types of signs do exist that may indicate preferred routes, minimum speed limits, or provide road condition information, speed limit signs specifically serve to establish the upper boundary for vehicle speed on the road. This clarity is essential for maintaining orderly traffic and protecting all road users.