Answer:
a cognitive map
Explanation:
Cognitive map:-
It is a type of the mental representation of a location which can be used by an individual to actually acquire, recall, store, code or decode information which is related to these locations.
This concept of cognitive map was introduced by Edward Tolman.
In the given case study, in which George is using the sign for Madison Street and recalling the route for Ryan’s house. George is using a cognitive map.