Civil Protection practitioners and emergency responders from 16 countries were asked to identify the key areas that need to be developed and integrated in Situational Awareness tools and systems.
These key functionalities are described...
Here is a link to the symbols used in the UK...
https://www.gov.uk/government/publications/emergency-responder-interoperability-common-map-symbols
The JESIP app also has good info...
https://www.jesip.org.uk/jesip-app