topological map
{{distinguish|topographic map}}
In cartography, geology, and robotics,{{cite book |last=Correll |first=Nikolaus |author2=Hayes, Bradley |author3=Heckman, Christoffer |author4=Roncone, Alessandro |title=Introduction to Autonomous Robots: Mechanisms, Sensors, Actuators, and Algorithms |publisher=MIT Press |year=2022}} a topological map is a type of diagram that has been simplified so that only vital information remains and unnecessary detail has been removed. These maps lack scale, also distance and direction are subject to change and/or variation, but the topological relationship between points is maintained. A good example are the tube maps for the London Underground and the New York City Subway.{{Citation |last=Elhorst |first=J. Paul |title=Spatial Panel Data Analysis |date=2015 |url=http://dx.doi.org/10.1007/978-3-319-23519-6_1641-1 |encyclopedia=Encyclopedia of GIS |pages=1–9 |place=Cham |publisher=Springer International Publishing |isbn=978-3-319-23519-6 |doi=10.1007/978-3-319-23519-6_1641-1 |access-date=2022-07-25|url-access=subscription }}