Commuter trains are a type of passenger train designed to transport people between their homes and workplaces, typically over short to medium distances. They operate on regular schedules, making it convenient for daily travelers. These trains often run during peak hours to accommodate the high demand from commuters. Most commuter train systems are found in urban areas, connecting suburbs to city centers. They are an efficient alternative to driving, helping to reduce traffic congestion and pollution. Many cities have established networks of commuter trains, such as those operated by Amtrak in the United States or SNCF in France.