A streetcar is a type of public transportation vehicle that runs on tracks and is powered by electricity. It is also known as a TROLLEY or TRAM. The term 'streetcar' is often used to refer to the North American versions of the vehicle, while 'TRAM' or 'TROLLEY' are used to refer to the European versions. Streetcars are typically used in urban areas and are an important part of many cities' public transportation systems.