Street cars, also known as trams or trolleys, are vehicles that run on tracks laid along city streets. They are typically powered by electricity and are used for public transportation, helping people travel short distances within urban areas. Street cars can carry many passengers at once, making them an efficient way to reduce traffic congestion. These vehicles often have designated stops and operate on a fixed route, allowing riders to easily access various parts of a city. Many cities, such as San Francisco and Melbourne, have well-established street car systems that contribute to their public transit networks and promote sustainable travel options.