A LADM-based 3D Underground Utility Data Model: A Case Study of Singapore

Over the years, in order to meet the many and growing needs of urban development, a lot of underground spaces have been used for the public infrastructures, such as utility lines, rail lines and roads. Complex underground infrastructure and inaccurate underground information complicate the development of underground space, the ownership of...

Representing Roles in Formalizing Domain Ontology for Land Administration

In Land Administration, web portals have been developed to support various customers on property transactions, applications for registration of land titles, submission of survey plans for authority’s approval, etc. The user groups of these portals are huge and range from various parties, such as surveyors, government authorities, landowners,...