Clarification: the symbol AA in the area below the map shows where security officials. To look after the safety and assist visitors in the zone stand, especially when there is a health issue.
Explanation: The AA in the diagram below shows the security officers. To care for the safety and assisting visitors in the zone standing. Especially when there is a health issue.
Note: the symbol AA in area map below shows the position of security. To take care of the security and to assist visitors in the zone card stand. Especially when health problems.