What is the primary purpose of regulatory signs?

The primary purpose of regulatory signs is to control lane use, which is crucial for maintaining order and safety on the roads. These signs dictate the rules that drivers must follow, such as the allowed number of lanes for traffic, specific turning directions, and speed limits. By enforcing these regulations, they help ensure that all road users can navigate safely and efficiently.

Regulatory signs are a vital component of traffic management, reducing the likelihood of accidents and improving traffic flow. Without these signs, there would be confusion about which lanes are available for use, leading to potential traffic jams and dangerous driving conditions due to unpredictable driver behavior. Their role in lane usage is to provide clear instructions that promote organized and safe driving practices.