|
Abstract
|
Article Information:
GIS in Water Supply Network Maintenance in Tarkwa, South Western Ghana
Michael Soakodan Aduah, Saviour Mantey and Naa Dedei Tagoe
Corresponding Author: Michael Soakodan Aduah
Submitted: 2011 June, 21
Accepted: 2011 September, 07
Published: 2011 November, 10 |
Abstract:
|
Developing systems to manage and maintain water supply networks is an important aspect of the
operations of water companies. This study uses GIS to investigate the water supply network of a section of
Tarkwa Municipality in South Western Ghana. The objective is to create a geodatabase that supports improved
operations and performance and to determine costs of asset replacement. Digital maps of the study area were
re-projected to the WGS84 UTM Zone 30 North projection. Analogue maps of the mains and lateral pipelines
were scanned and geo-referenced to this projection. The pipelines and valves were then manually digitized,
their attribute tables created and a geodatabase model developed. The analysis indicates that more than half of
the network is over-aged. Also of the 11 km of pipelines, more than 76% was laid in 1975 and 1978. AC and
PVC pipes laid in 1975 and 1978 comprise 29 and 47% respectively while the rest of the study area is covered
by AC and PVC pipes laid in 1987. This study also observed that the length of AC pipes have consistently
reduced since 1975. The study has further demonstrated the suitability of GIS techniques in studying water
distribution networks. The system developed three scenarios that can support the design of long term expansion
and replacement action plans. The study also provides detailed spatially referenced information on pipelines
and the associated cost of replacement as they reach the designed lifespan.
Key words: Digital maps, geodatabase, Ghana, GIS, pipelines, Tarkwa,
|
|
Abstract
|
PDF
|
HTML |
|
Cite this Reference:
Michael Soakodan Aduah, Saviour Mantey and Naa Dedei Tagoe, . GIS in Water Supply Network Maintenance in Tarkwa, South Western Ghana. Research Journal of Environmental and Earth Sciences, (6): 737-744.
|
|
|
|
 |
ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
 |
| Information |
|
|
|
|
| Sales & Services |
|
|
|
|
