Spatiotemporal Data Modeling for Disaster Management in the Netherlands

摘要

This paper presents an approach for modeling data collected during emergency response starting from a conceptual level until the implementation in a Database Management System (DBMS).This approach follows arrangements for disaster management in the Netherland.Any disaster incident is managed through processes.Each process has a well-defined objective,which realization requires certain information and often produces information.The information is mostly spatial information,and in a large part of a temporal nature.We have created new data types for the temporal and spatiotemporal data: dynamic counts,moving point,and moving region.The model is implemented in Oracle Spatial.The temporal data types are implemented using the Oracle functionality on nested tables.Visualization of spatiotemporal data is done via views that perform un-nesting of tables,and transform the data to simply spatial types.Spatiotemporal data can be used in analysis for supporting the decision making during disaster incidents.