Continued from Commentary

Generally, the city field rail transit in the narrow sense refers to adopting the wheel-rail mode, mainly connecting city center areas with suburban areas as means of transportation for commuting to work, commuting to learn, business and other services. The city field rail transit in the broad sense is a type of traffic between city center rail transit and intercity railways, which could be a traditional wheel-rail mode, or also a monorail mode, maglev mode and other mode, etc.