Schematic maps are effective tools for representing information about the p
hysical environment; they depict specific information in an abstract way. T
his study concentrates on spatial aspects of the physical environment such
as branching points and connecting roads, which play a paramount role in th
e schematization of wayfinding maps. Representative classes of branching-po
ints are identified and organized in a taxonomy. The use of prototypical br
anching points and connecting road types is empirically evaluated in the sc
hematization of maps. The role played by the different functions according
to which the map is classified is assessed, and main strategies applied dur
ing the schematization process are identified. Implications for navigationa
l tasks are presented.