 Lists of urban rail transit systems

Lists of urban rail transit systems typically refer to comprehensive databases or documents that categorize and describe various rail transit systems used in urban areas around the world. These systems can include services such as subways, light rail, trams, and commuter trains. Here are some common elements you might find in these lists: 1. **System Name**: The official name of the rail transit system. 2. **Location**: The city or metropolitan area where the system operates.