Developing Automated Map Generalisation Workflow for Building, Road, and Stream Course Features in Topographic Map of Hong Kong

Generalisation of map features constitutes an essential process for creating maps in smaller scales.During this process, mapmakers apply appropriate generalisation operators to ensure that the map remains legible while preserving the major geographic characteristics and spatial relationships of features.Traditionally, map generalisation has been conducted manually, a time-consuming and labour intensive process that often results in lengthy revision cycle of small scale maps.This presents challenges in maintaining the currency of map content, especially in areas experiencing frequent city development.Furthermore, the subjective interventions of map makers on map generalisation hinders data quality and consistency among the maps.In light of these challenges, various National Mapping Agencies (NMAs) have recognised automated map generalization as a means to increase map production efficiency (Foerster, Stoter, & Kraak, 2010).