Data Development for Water Supply and Environmental Sanitation Master Plan

For the effective management of water supply and sewerage distribution

Background and Objectives

The objective of the project was to develop a master plan for the effective management of water supply and sewerage distribution for one of the biggest cosmopolitan Magnasoft was a subcontractor to an Australian GIS consultant on this project.

Key Aspects of the Project

• Creation of base map: The creation of base map showing street level data with 1m contour interval using satellite imagery and ground truthing
• Creation of digital map of water and wastewater network:
• Digitization of water network using base map as reference
• Creation of DEM
• Creation of DEM and overlay of results with existing data to obtain elevation information of water pipeline network
• Development of a Decision Support System for water supply and wastewater treatment

Services Rendered and Methodology

• Data conversion
  • Base map AutoCAD drawing files representing information pertaining to Divisional data (N/S/E/W), data from core areas of Bangalore including Sheet Grid, drainage catchments and sewer zones were converted to Arc/Info format.
  • A Polyconic/ Everest grid coverage was built for the Sheet Index and transformed into UTM Zone 43/ WGS-84 datum. All drawings were transformed to real world coordinates.
  • Combined Arc/Info coverages were created for each layer covering the entire area
  • Data output was in ESRI shape file format on CD-ROM
  • Survey of India Topographic Maps at scale units of 1:50000 were scanned   and Geo-Referenced to UTM Zone 43/ WGS-84 datum with portability in   Arc View software
• Database design and development
  • Design of water network database and attribution of network elements such as valves, hydrants, etc. for resource inventory and complaint tracking.

Tools Used:

• AutoCAD
• ArcView
• ArcInfo
• Access 97