Railroad signs are important safety indicators used to alert drivers and pedestrians about train tracks and the presence of trains. These signs can include warnings about approaching trains, signals for stopping, and information about track crossings. They are designed to prevent accidents and ensure that people are aware of the potential dangers associated with railroads. Common types of railroad signs include the crossbuck sign, which indicates a railroad crossing, and flashing lights that signal when a train is approaching. Additionally, gates may lower to block traffic when a train is nearby. Understanding these signs is crucial for safety near train tracks.