Urban rail transit refers to various forms of rail systems that are designed to operate within urban areas, facilitating the movement of people across cities and densely populated regions. It is an essential component of public transportation, helping to reduce congestion, lower emissions, and provide an efficient means of commuting. Here are some common forms of urban rail transit: 1. **Subways (or Metros)**: These are underground or elevated train systems that serve densely populated urban areas.
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