Rajakerrokset
Rajakerrokset is a concept in Finnish geography and border studies describing the successive, overlapping zones that form around political borders. The term combines rajaa "border" with kerrokset "layers," and is used to analyze how different types of boundaries and interactions coexist in space. The concept emphasizes the spatial organization of borders as not a single line but a set of connected layers that influence daily life, governance, and regional development.
Typically, rajakerrokset are described as concentric or nested layers with distinct actors and functions: (1) the
The concept is used to inform cross-border planning, regional development, and policy evaluation by highlighting spillovers