Right-Hand Traffic (RHT) refers to a system of road traffic where vehicles drive on the right side of the road. This system is used in many countries, including the United States, Canada, and most of Europe. RHT is designed to improve safety and efficiency by standardizing the flow of traffic, making it easier for drivers to navigate intersections and roundabouts. In contrast to Right-Hand Traffic, some countries, like United Kingdom and Australia, use Left-Hand Traffic (LHT), where vehicles drive on the left side. The choice of RHT or LHT is often influenced by historical factors and colonial influences. Understanding these systems is essential for safe driving and international travel.