Architecture descriptions of Unified Digital Infrastructure for Smart Cities Developed using Archimate 3.1 (http://www.opengroup.org/archimate/downloads.htm)
ictra.archimate: Smart City Reference Architecture
mobility.archimate: Example architectural description for mobility usecase.
IndEA.archimate: India Entreprise Architecture as proposed by MeitY, Govt. of India. (https://negd.gov.in/india-enterprise-architecture)