This emoji represents a light rail, which is smaller than a subway or high-speed train. Therefore, it's more suitable for situations involving travel within a city or to nearby areas.

It brings to mind monorails or new transportation systems like the Uijeongbu Light Rail in Korea or the Yurikamome in Japan. Beyond just a mode of transport, it can also symbolize the exciting start of a journey to a new place or the image of a modern city.