Sketch maps reveal important features that reflect people's understanding of the environment. This study presents how the different types of sketch maps highlighted shared spatial knowledge through a theory-based approach to skeletal map development. Sketch maps collected from 123 university students demonstrated that the information drawn combined sequential (streets) and spatial elements highly dominated by landmarks. Students' cognitive image of the campus is influenced by open spaces as structuring regional features. The paper illustrated a quick visualization of the spatial layout and how the shared features are described in the route instructions that may be useful during wayfinding.
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