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Assignment from: Bangalore
Water Supply and Sewerage Board (BWSSB), Bangalore, India
under Indo – French Protocol
Consultants:
SCE, Nantes, France and
IRAMCONSULT, New Delhi, India
Funding Agency: Government
of France
Project : 1999-2001
Location: Bangalore,
Karnataka, India
Brief
description of the Project
As urban areas become more
densely populated and public infrastructure is progressively
modernised, state and local government, strategic planners and
utility operators are increasingly required to handle large
volumes of information which may often be too complex and may
be continually subject to modification. To analyse this
geographically related information and facilitate optimum
decision making, the decision-makers must be equipped with the
appropriate tools.
Bangalore City too has witnessed
rapid growth in population particularly during the last 4
decades. The population, which was 12.06 lakhs in 1961,
increased to 41.30 lakhs by 1991, and this is projected to
rise to 60 lakhs by the year 2001. Similarly, the city has
expanded phenomenally in area from 29 Sq.Kms. at the beginning
of the century and is expected to increase to 446 Sq.Kms. by
the year 2001 and by 2011, the area of the City will increase
to 564 Sq.Kms. The total network of water supply transmission
and distribution pipelines has reached nearly 2000 km and the
lateral sewers and out-fall sewers had increased to about 1865
Kms. by the year 1995. Bangalore Water Supply & Sewerage Board
since its formation in 1964 has augmented the water supply to
Bangalore city from 164 MLD to 704 MLD. Until 1964, water was
abstracted from Arkavathi river sources only. Now the major
quantity of 540 MLD water is being pumped from Cauvery River
from a distance of about 93 Kms.
The water supply, storm water
drainage and sewerage systems have grown enormously and to
handle such a large system, there was an imperative need to
develop a Geographic Information System (GIS) in BWSSB on a
priority basis. The development of GIS was undertaken with
external assistance under Indo-French Protocol. The technology
and consultancy services for this GIS project was provided by
SCE, Nantes, France and IRAMCONSULT, New Delhi,
India.
Geographic Information Systems
and applied solutions ensured a permanent understanding of the
urban infrastructure of Bangalore city such as roads, cross
roads, public buildings, green areas and parks, lakes and
other water bodies and utilities like water supply and
sewerage system, electricity, and telecommunications etc., as
well as economic resources enabling both types of information
to be managed reliably and efficiently. Geographic Information
Systems will also be used to facilitate better operation and
maintenance of various services and ensure effective
evaluation and monitoring of the public utilities, thereby
improving resource recovery and sustainability of BWSSB. The
project contract duration was 18 months.
The responsibility of water
supply distribution and collection and treatment of waste
water/storm water is with the Bangalore Water Supply &
Sewerage Board (BWSSB). The BWSSB plans to implement a GIS
based system for about 598 Sq.Kms., which includes the
metropolitan area of about 565 Sq.Kms. and spotted development
of about 33 Sq.Kms. at four locations. The pilot area which
was identified as the core area where developed water supply
and sewerage systems exist were undertaken for GIS
development. The BWSSB has five divisional offices in the
city. Under the proposed pilot area, two of the five
divisional offices namely the Southern and the Eastern
divisions were covered under the Computerised Mapping and GIS
for the water supply distribution and waste water/storm water
collection system. These two divisional offices have further
three and four sub-divisional offices, which in total cover
about eighteen service stations. The pilot project area had an
estimated population of 15-18 lakhs and 1.25 lakh water supply
connections/sewer connections. The areas under this project
were Railway station, Race Course, Indranagar, Vasant Nagar,
Jayanagar, Kalasiplaya, Koramangla and St. John Hospital. The
total area covered under this proposed pilot project was about
100 Sq.Kms. The digital vector data and maps based on aerial
photography were provided by National Remote Sensing Agency (NRSA),
Hyderabad in 1 : 2000 scale. The consultants converted this
data into ArcInfo based GIS. The database was developed under
Oracle 8i and it was spatially linked to the GIS based maps.
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