This character is a Other Symbol and is commonly used, that is, in no specific script. The character is also known as train and subway station.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+1F689 offers a line break opportunity at its position, except in some numeric contexts.
The CLDR project calls this character βstationβ for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: railway, train.
This character is designated as an emoji. It will be rendered as colorful emoji on conforming platforms. To reduce it to a monochrome character, you can combine it with Variation Selector-15: ποΈ See the Emojipedia for more details on this characterβs emoji properties.
The Wikipedia has the following information about this codepoint:
A train station, railroad station, or railroad depot (mainly North American terminology) and railway station (mainly UK and other Anglophone countries) is a railway facility where trains stop to load or unload passengers, freight, or both. It generally consists of at least one platform, one track, and a station building providing such ancillary services as ticket sales, waiting rooms, and baggage/freight service. Stations on a single-track line often have a passing loop to accommodate trains travelling in opposite direction.
Locations at which passengers only occasionally board or leave a train, sometimes consisting of a short platform and a waiting area but sometimes indicated by no more than a sign, are variously referred to as "stops", "flag stops", "halts", or "provisional stopping places". The stations themselves may be at ground level, underground, or elevated. Connections may be available to intersecting rail lines or other transport modes such as buses, trams, or other rapid transit systems.