A railroad car is a vehicle designed for transporting goods or passengers on a railway track. These cars are connected to a locomotive, which provides the power to move them along the tracks. There are various types of railroad cars, including freight cars for cargo, passenger cars for travelers, and specialized cars for specific purposes, such as tank cars for liquids. Railroad cars are built with sturdy materials to withstand the rigors of travel and heavy loads. They come in different sizes and configurations, depending on their intended use. The design of a railroad car often includes features like doors for loading and unloading, and some may have climate control for sensitive cargo, such as refrigerated cars for perishable goods.