INNOVATION IN wATER, wASTEwATER, AND STORmwATER NETwORkS
general Directorate of Izmir water and wastewater Authority
IZsU geographic Infrastructure Information system project
The Izmir Waterworks Authority (IZSU) developed
the IZSU Geographic Infrastructure Information
System to store infrastructure assets in an oracle
Spatial database. The $470,000 system has an open
GIS-compatible data warehouse that allows data to
be shared with other departments, companies, and
municipalities. existing IZSU data was migrated to
oracle Spatial and information from multiple sources
was converted to the new environment.
The Geographic Infrastructure Information
System stores data on 4, 200 kilometers of water
pipeline, 43,770 water fittings, 2,820 kilometers
of wastewater pipeline, and 74,720 wastewater
fittings. About 300 IZSU personnel access the
data through four websites. IZSU’s 21 branch
offices utilize the data to improve efficiency and
responsiveness to customer requests.
Geo Web publisher and project Wise Geospatial
management Server were used for the enterprise
GIS. Bentley’s water and wastewater schema were
localized and a Turkish interface was developed.
microStation VBA was used to develop custom user
interfaces for easy reporting and data entry. By
reducing rework and conversions, the IZSU system
reduced man-hours by approximately 20 percent.