What is the purpose of HAR in traffic control?

The purpose of HAR, or Highway Advisory Radio, is to provide timely information to drivers through audio alerts. HAR systems broadcast information regarding traffic conditions, accidents, road closures, or other relevant details that could affect the travel experience. This immediate dissemination of information helps drivers make informed decisions, ultimately improving safety and efficiency on the road.

In this context, while visual warnings, regulating traffic flow, and maintaining vehicle speeds are important aspects of traffic management, they do not encompass the role of HAR specifically. HAR's focus is solely on delivering auditory information to enhance driver awareness and response.