The proposed system provides integration of spatial and thematic information in a single environment. Spatial data was retrieved from construction layout plans and topographic maps of the project. Geography-related hazardous work activities and mitigation measures were extracted from British Health and Safety at Work Act and Construction (Health, Safety and Welfare) Regulations and formalized. This formalized H&S data was entered to a database in GIS and represented in several data layers. Once the user input is collected for non-spatial risks, the database was queried for potential hazards and the work areas that had hazard potential and safety risks were
identified. Moreover information about mitigation measures was retrieved to take necessary actions for preventing construction accidents. Besides, pinpointing potential hazards and their locations at construction site it also offers mitigation measures.