definition
strict definition
amenity
Practical objects whose function is to improve the livability or usability of an area, another object, or a public realm.
Infrastructural amenities are objects whose purpose is to enhance an area or place in some practical way, making it more livable, serviceable, or usable.
The object provides a practical improvement to the surrounding place or another object. Its purpose concerns usefulness or livability rather than a decorative effect alone.
Illumination and basic shelter provide different kinds of practical service. The amenity function is separate from the construction form used to supply it.