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Geospatial Applications in Civil Engineering

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Geospatial Applications in Civil Engineering

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Geospatial Applications in Civil Engineering

  1. 1. Sriharsha Rangineni – Senior GIS Engineer Geospatial Applications in Civil Engineering
  2. 2. Agenda Introduction about Remote Sensing and GIS Geospatial Applications In Civil Engineering Data, Tools & Workflow Data Accessibility
  3. 3. Remote sensing observations provide data on earth’s surface objects in a spatial format and it has the advantage of synoptic view and large area coverage. This Spatial data can be efficiently handled using Geographic Information System (GIS) and its also allows data integration. In civil engineering projects, RS and GIS techniques became potential and necessary tools. Introduction
  4. 4. Site Investigations Terrain Mapping and Analysis Water Resources Engineering Town Planning And Urban Development Transportation Network Analysis Landslide Studies Applications
  5. 5. Site Investigations by Drone Drone can vastly reduce the time spent collecting accurate data Geo-referenced digital aerial images, with resolutions as sharp as 1.5 cm (0.6 in) per pixel. Absolute X, Y, Z accuracy of down to 3 cm (1.2 in) – without needing Ground Control Points. Minimizing risk to surveying teams when measuring sites such as mines, unstable slopes and transport routes. Drone technology allows Civil Engineers to work more efficiently
  6. 6. Site Investigations by Drone Flight planning Setting of on-site GCPs Performing Flight Import images Generation of ortho-mosaics & 3D point clouds Analysis/production of deliverables Final report/deliverable creation in third-party software
  7. 7. Terrain Mapping and Analysis Several common terrain based analyses provide valuable details of surface properties. Slope maps are excellent for analyzing and visualizing landform characteristics. Aspect maps to assess watershed, forest inventory, habitat suitability, slope erosion, etc. Hillshade representations are an effective way to visualize the 3D nature of land elevations on a 2-D monitor or paper map. Viewshed analysis is a valuable visualization technique that uses to determine those areas that can be seen from one or more specific locations.
  8. 8. Water Resources Engineering A watershed analysis is surface analysis techniques that define topographic divides of stream networks. Analyses model give direction of water movement across the surface. Stream networks and watershed, sub watersheds can be determined precisely. hydrologic and water resources analyses provide statistical approach of decision making.
  9. 9. Water Resources Engineering Identify and proper DEM for surface reconditioning. Construct profiles using 3D Analyst. Create and edit feature classes. Identify and properly execute the sequence of Hydrology tools required to delineate streams, catchments and watersheds from a DEM. Develop a Geometric Network representation of the stream network from the products of terrain analysis.
  10. 10. Town Planning & Urban Development Easy management of housing, sanitation, power, water supply, disposal of effluents and environmental pollution. Optimal master plan for development and management of urban settlements can be prepared. Monitoring of urban land use changes and future planning, management and policy making.
  11. 11. Data, Tools & Workflow 1. Find suitable locations for School or Collage By combining spatial data, find areas that are the most suitable, such as siting a new building or determining high-risk areas for flooding or landslides. 2. Calculate low cost of travel path surfaces to identify optimum corridors, in economic and environmental conditions with other objectives. 3. Watershed and stream network delineation based on digital elevation models using the Hydrology tools in the Geoprocessing toolbox.
  12. 12. **Free Data Providers
  13. 13. Web GIS Services
  14. 14. Sriharsha Rangineni Senior GIS Engineer Mail - harsha.rangineni@gmail.com Thank You

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