Thames Tunnel: the Many Forms of Web GIS Reporting


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Presentation by Brad Fisher from Critigen on Esri European User Conference 2011.

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Thames Tunnel: the Many Forms of Web GIS Reporting

  1. 1. Thames Tunnel: The manyforms of Web GIS ReportingBrad FisherGIS Technical
  2. 2. Thames Tunnel Background 39 million cubic metres of sewage discharged to tidal River Thames in a typical year. As little as 2mm of rain can now trigger a discharge. Environmental - tides mean the sewage stays in the river for weeks, affecting dissolved oxygen levels and habitats Human – frequency of Combined Sewer Overflow (CSO) discharges is a potential hazard to all river users Legal – the UK fails to comply with the EU Urban Waste Water Treatment Directive.
  3. 3. In Simple Terms
  4. 4. Thames Tunnel challenges Meet requirements of Minister’s Direction in most cost efficient manner Intercept the flow from the 34 most polluting CSO’s (of 57) as identified by the Environment Agency Construction of one of the longest and deepest tunnels ever built beneath London Deal with variable ground conditions – London Clay, Lambeth Group, Thanet Sands and Chalk Minimise impact on surface and subsurface infrastructure Control odour and air release during tunnel filling
  5. 5. Preferred route and sites (phase one andinterim engagement)
  6. 6. Major Infrastructure Project A very complex & large engineering project for a GIS to support.
  7. 7. Primary role of GIS in ThamesTunnel is to support ‘informed’ decision making
  8. 8. Access to Information SS TPI Planning Enviro HS&E Design Prj Ctrls Geotech Property Doc Ctrl HS&E Modelling HR IT Survey Comms
  9. 9. GIS Deliverables in Thames Tunnel Analysis 6 GIS web apps Mobile apps Data Management 200+ contractors Data translation Trust in data Integrity Integrity Information 220+ data requests Deliverables Visualisation 750 data layers 33 000 maps Information Quality 200 Gb Data
  10. 10. Many sources of data / information Land useHistoric mapping Survey Data Piles of maps Property info Social As Built Drawings networks Photo’s
  11. 11. GIS Solutions Historic Mapping ViewerGeoPlan Twitter map Land Referencing Survey Data Original As Built Drawings
  12. 12. Reporting
  13. 13. What is a Report? Wiki Definition: A report is a textual work (usually of writing, speech, television, or film) made with the specific intention of relaying information or recounting certain events in a widely presentable form. Reports are often wanted as some form of document (hardcopy (paper map) or softcopy (pdf)).
  14. 14. What is a GIS Report?
  15. 15. Turning Data into Information GIS is able to turn data into Information by default
  16. 16. Web GIS Reporting for Developer =Pain
  17. 17. Reporting is not easy in a Web GIS Reporting is not easy – Few OOTB solutions – Bespoke Solutions not ideal – Its not necessarily hard (from dev perspective, moderate effort) BUT its tedious (to say least)
  18. 18. Challenges for web reporting Scale is everything – Even the scale bar tedious WYSIWG Resolution (dpi) / file size Page Size (support for large format printing (> A3) Interaction with selected sets of data Cached service issues Legends
  19. 19. Where are we at? – Historically a desktop solution – RIA have had a profound impact on our web based GIS applications functionally & user-expectations. – ArcGIS ADF could leverage off map templates (mxt) & with a bit you could come up with a decent solution. – REST releases to date still does not readily cater for printing to scale. – Geoprocessing (arcpy.mapping) offers opportunity – Third-party solutions/extensions
  20. 20. Moving forward Core reporting capabilities are slowing becoming mainstream (tomorrow will not be quick enough) – 10.1 proposing to offer printing exposed as a REST service – I think we may will see more third party & sample solutions that leverage off the 10.1 core capabilities
  21. 21. Reporting in GIS Web Apps Is Still a ChallengeBut its getting easier
  22. 22. Demo (live!!!) GeoViewer REST Endpoints (sites) Planning Editor Temporal Viewer
  23. 23. Printing a map
  24. 24. Combined text/map (dynamic)
  25. 25. Temporal Reporting
  26. 26. REST (Representational statetransfer) Reporting Software architecture style based on http for distributed system Similar functionality to come in 10.1 (fantastic ESRI!)
  27. 27. Contact Us Brad Fisher GIS Technical Lead @gisfish
  28. 28. Thames Tunnel GIS Architecture
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