Expressways mainly help intracity traffic in that the multiple lanes can hold more traffic, and vehicles can move at high speed. Expressways are designed to handle a large volume of traffic, and they often have multiple lanes that allow for more vehicles to use the road at the same time. This can help to reduce congestion within the city, as vehicles are able to move more quickly and efficiently along the expressway. By reducing traffic congestion, expressways can also help to reduce air pollution and improve the overall quality of life for people living in the city. Additionally, because expressways provide a faster and more direct route between different parts of the city, they can also help to improve access to important services and amenities.