1 / 39

GIS from the Ground Up: Development and Implementation of a GIS

GIS from the Ground Up: Development and Implementation of a GIS for Ras Al Khaimah – United Arab Emirates. Mohamed R. Bualhamam GIS Professor- UAE University Head of RAKGIS Committee Deputy General Manager- RAK Municipality. April 2008. Table of Content. The RAKGIS background Objective

lula
Télécharger la présentation

GIS from the Ground Up: Development and Implementation of a GIS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. GIS from the Ground Up: Development and Implementation of a GIS for Ras Al Khaimah – United Arab Emirates Mohamed R. Bualhamam GIS Professor- UAE University Head of RAKGIS Committee Deputy General Manager- RAK Municipality April 2008

  2. Table of Content • The RAKGIS background • Objective • The RAKGISproject (may 07- August 08) • Enterprise GIS benefits realized • AutoCAD to GIS • Data migration

  3. THE RAKGIS BACKGROUND • ENABLING BETTER GOVERNANCE AND CONTINUOUS IMPROVEMENT OF LIFE-STYLE FOR ITS CITIZEN’S • RAK REALISES THAT GEOGRAPHIC OR GEO-SPATIAL INFORMATION OCCUPIES PRE-EMINENT POSITION IN MODERN-DAY GOVERNANCE: • CRITICAL FOR ECONOMIC AND PUBLIC ACTIVITY • CITIZEN SERVICES • PROPERTY MANAGEMENT, LAND MANAGEMENT, EMERGENCY MANAGEMENT, ENVIRONMENTAL ASSESSMENT, TOWN PLANNING, INFRASTRUCTURE (AIRPORT AND SEA-PORT, ROADS, TELECOM, CIVIC INFRASTRUCTURE ETC) DEVELOPMENT, ENGINEERING AND PUBLIC WORKS, BUSINESS GEOGRAPHICS AND MANY OTHER AREAS • CONSTANT AND INCREASED “DEMAND” FOR (SPATIAL AND NON-SPATIAL) INFORMATION FROM DIFFERENT STAKE-HOLDERS IN RAK

  4. Objective To design and development of a seamless and updated enterprise GIS for Ras Al Khaimah; 1. Establishment of spatial framework—GPS Control points. 2.Migration of existing spatial data into RAK Enterprise GIS framework. 3.Development of web enabled metadata search utility 4. Development of 3D City model for RAK area. 5. Development of GIS applications.

  5. The RAK GIS Project (May 07- Jul 08) • Establishment of GIS spatial frame work (Primary, Secondary and Tertiary Control points through systematic GPS Surveys). • Inventory of available digital data and 2002 maps with RAK • Development of 9 GIS applications • Procurement of already contracted 7 GIS applications and link them with the new applications to enable users have full access to the web enabled GIS. • Training on operational aspects on Enterprise GIS and its applications to RAK officials

  6. What enterprise Provided to RAK Enterprise GIS Benefits Realized • Significantly reduced data redundancy • Improved accuracy and integrity of geographic information • Efficient and timely data sharing • High level of interoperability between GIS and non-GIS applications • More effective use of departmental GIS skills and resources • Reduced overall GIS maintenance and support costs.

  7. AUTOCAD TO GIS (AUTOCAD STANDARDISATION TROUBLE-SHOOT)

  8. Steps Towards Migration to GIS • Autocad Layers Standardisation Document • Layerization of all features as per standards • Identifying Errors in Autocad Layers • Cleaning the drawing • Migration to GIS

  9. STANDARDIZATION . . . REVISED RAK AUTOCAD LAYERS SCHEMA STANDARDIZATION …

  10. STANDARDIZATION . . . REVISED RAK AUTOCAD LAYERS SCHEMA STANDARDIZATION …

  11. STANDARDIZATION . . . REVISED RAK AUTOCAD LAYERS SCHEMA STANDARDIZATION …

  12. STANDARDIZATION . . . REVISED RAK AUTOCAD LAYERS SCHEMA STANDARDIZATION …

  13. STANDARDIZATION . . . REVISED RAK AUTOCAD LAYERS SCHEMA STANDARDIZATION …

  14. LAYERIZATION • Categorizing features into corresponding layers • Removing Duplicate features No data loss ~ 70 ~ 400 (After AutoCAD Standard) (Before AutoCAD Standard) • Non systematic Layerization • Duplicate layers, • Individualized approach

  15. ERRORS IDENTIFICATION Snapping Undershoot Over shoot Parcel No Duplicate Parcel No Mismatch Parcel doesn’t have number Number doesn’t have parcel Parcel has more than one number Sliver Polygons

  16. Snapping Errors Undershoot Overshoot

  17. Snapping Errors - Undershoot

  18. Snapping Errors - Overshoot

  19. Sliver Polygons

  20. Sliver polygons

  21. Parcel No Duplicate

  22. Duplicate Parcel Numbers for sector 4 Total Duplicates = 41 nos.

  23. Parcel Number : 205044004 205044004 205044004

  24. Parcel more than one number

  25. One Parcel has more than one parcel number

  26. One Parcel has more than one parcel number

  27. Parcel Overlapping Error

  28. Parcels are Overlapping Together

  29. Overlapping because of Non-Systematic Layers GIS AutoCAD

  30. Transformer polygons Transformer polygons to be removed from the parcels

  31. Parcel Extension ? Parcel Extensions merged with parcel current layer

  32. Extension - Not followed existing standards for extension This yellow colour dotted line symbol is not available in the Extension layer.

  33. Improper Position of Parcel Number AutoCAD GIS ? Origin of parcel should be within the parcel

  34. Parcel Nos donot have Parcel Boundary

  35. Parcel doesn’t have Parcel Number

  36. Drawing Clean UP to be done before converting into GIS Topology Creation Converting into ESRI GeoDatabase

  37. Final Geodatabase of Sector 2 Total Parcels :23639

  38. DATA MIGRATION • To transform the existing base maps as AutoCAD drawings to the national spatial framework. • To transform the existing planning maps available in Clarke datum to WGS 84 UTM projection. • To transform the existing orthoimages to the GPS reference framework, if not fitting well. • Correct the transformed planning maps to superimpose exactly on the transformed orthoimage. • Delivering all the maps in one common RAK spatial framework. • Create metadata for every map and image DATA QUALITY ISSUES EXTERNAL ORACLE TABLES FIELD COMPATIBILITY ISSUES SYMBOLOGY ISSUES ANNOTATION ISSUES APPLICATION ISSUES FINAL DATABASE SCHEMA

  39. THANK YOU!!! DISCUSSIONS.....

More Related