A junction is a point where two or more roads, paths, or railways meet or cross. It serves as a critical location for directing traffic and ensuring safe passage for vehicles and pedestrians. Junctions can vary in complexity, from simple intersections to more elaborate roundabouts or interchanges. In urban planning, junctions are designed to optimize traffic flow and minimize congestion. They often include traffic signals, signs, and markings to guide drivers and pedestrians. Properly designed junctions enhance safety and efficiency, making them essential components of transportation systems in cities and towns.