Urban railway is a form of public transportation that is used in cities and metropolitan areas. It includes two main types of transportation: METRO and STREETCAR. METRO is a rapid transit system that operates on an exclusive right-of-way, usually underground or elevated, and is powered by electricity. STREETCAR is a form of public transport that runs on tracks along public roads, and is usually powered by electricity. Both of these forms of transportation are used to provide efficient and reliable transportation for urban commuters.