If you tell a friend, "Grandma's house is thirty minutes drive north of my house", the type of location you are describing is relative location.
Corresponds to the description of a location related to a particular reference point, instead of using a precise point where the location actually is. The example question refers to relative location by stating that "Grandma's house is a thirty-minute drive north of my house" note that the description describes the location of Grandma's house in reference to the house itself.
Therefore, it is correct to say that this description is a description of relative and not absolute location.
Find out more about relative location here:
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