Interstate 42 is a proposed highway in the United States that aims to connect the eastern and western regions of the country. It is intended to enhance transportation efficiency and improve access to various cities and towns along its route. The proposed route would primarily run through the southeastern states, facilitating trade and travel. The planning for Interstate 42 is part of a broader initiative to expand the national highway system. This project is expected to support economic growth by providing better connectivity for businesses and communities. As of now, the project is still in the planning stages, with discussions ongoing about its final route and funding.