Expressways are the highest class of roads in India. As of July 2022, India has a total length of 2,587.5 km (1,607.8 mi) of expressways. These are controlled-access highways where entrance and exits are controlled by the use of ramps or interchange or trumphet that are incorporated into the design of the expressway and designed for minimum speed of 120 km/hr, whereas National highways are flyover access or controlled-access highway, where entrance and exit is through the side of the flyover,at each intersection of highway with road, flyovers are provided to bypass the city/town/village traffic and these highways are designed for speed of 100 km/hr. Some roads are not access-controlled expressways, but are still officially called expressways, such as the Biju Expressway, these highways (of