the structures that emphasize, organise and enable social functions. Individual units of infrastructure are known as assets. It is sometimes subcategorised into economic infrastructure, the networks of built assets that enable the creation of value like energy, ICT and water, and social infrastructure, the assets that enable social services and connections, such as transport networks, hospitals and schools. 
 Gürdür Broo, D., Lamb, K., Juvenile Ehwi, R., Anneli Pärn, E., 2020. Four Futures, One Choice: Options for the Digital Built Britain of 2040. Researchgate.