The expressway interchange differs from a normal intersection because?

The expressway interchange differs from a normal intersection primarily in design and traffic flow. Interchanges are specifically engineered to facilitate the smooth movement of vehicles between highways without the need for stopping at traffic signals or stop signs, thereby reducing congestion and improving safety. They utilize ramps and overpasses to allow for continuous traffic flow, whereas normal intersections often involve direct crossings and may require vehicles to yield or stop. This design minimizes delays and enhances overall efficiency in high-speed travel environments.