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Developing a Geographical Information System for a water and sewer network, for monitoring, identification and leak repair - Case study: Municipal Water Company of Naoussa, Greece

Sourlamtas, Konstantinos LU (2023) In Master Thesis in Geographical Information Science GISM01 20231
Dept of Physical Geography and Ecosystem Science
Abstract
This thesis presents the design and implementation of a Geographic Information System (GIS) for the Naoussa Municipality Water and Sewer Company for better water utility management.
The methodology contained field data collection like the valves, sewer manholes, hydrometers, and hydrants in two ways, UAV photogrammetry, and traditional surveying, the georeferencing process, photogrammetric processing, the digitization of old paper maps and the geodatabase design.
Moreover, the thesis investigates the resulting accuracy from the application of classical topographic methods in relation to that of UAV photogrammetry for mapping and collecting data on valves, hydrants, hydrometers, pipes, and other water utility infrastructure.
The... (More)
This thesis presents the design and implementation of a Geographic Information System (GIS) for the Naoussa Municipality Water and Sewer Company for better water utility management.
The methodology contained field data collection like the valves, sewer manholes, hydrometers, and hydrants in two ways, UAV photogrammetry, and traditional surveying, the georeferencing process, photogrammetric processing, the digitization of old paper maps and the geodatabase design.
Moreover, the thesis investigates the resulting accuracy from the application of classical topographic methods in relation to that of UAV photogrammetry for mapping and collecting data on valves, hydrants, hydrometers, pipes, and other water utility infrastructure.
The products produced from the use of such systems are characterized by high-precision results. Accuracies ranging between 0.15 - 0.29m have been achieved. The classical survey method gave more accurate results when compared with those produced by the UAV method. By using 85 GCPs, an accuracy of 4.5cm was achieved in the final orthophoto.
Three indicative network management scenarios are implemented within the GIS environment. With these scenarios, the possibilities of managing the network are highlighted in terms of the coherence and integrity of the data, but also in terms of the introduction of new objects in the network and finally in terms of the network analysis possibilities that can be carried out by GIS.
This thesis tries to present and analyze the advantages and possibilities presented by GIS concerning urban water supply networks. It shows how a GIS can help the water company in its everyday work. Using GIS to manage the water company’s utility data has allowed more flexibility over the previous analog system when analyzing data, and the management of the water network is more efficient.
Keywords: Water and sewer network, GIS, UAV, surveying, photogrammetry, orthophoto, geodatabase (Less)
Popular Abstract
Water is one of the most significant utility services for people, which contributes to the quality of life. Water utilities have the obligation to distribute the water in a city and to manage, maintain and analyze the associated infrastructure. The majority of water utility organizations have and operate their assets through paper maps, where the characteristics and locations of their objects of interest are visible. This thesis presents the design and implementation of a Geographic Information System (GIS) for the Naoussa Municipality Water and Sewer Company for better water utility management.
The methodology contained field data collection like the valves, sewer manholes, hydrometers, and hydrants in two ways, UAV photogrammetry, and... (More)
Water is one of the most significant utility services for people, which contributes to the quality of life. Water utilities have the obligation to distribute the water in a city and to manage, maintain and analyze the associated infrastructure. The majority of water utility organizations have and operate their assets through paper maps, where the characteristics and locations of their objects of interest are visible. This thesis presents the design and implementation of a Geographic Information System (GIS) for the Naoussa Municipality Water and Sewer Company for better water utility management.
The methodology contained field data collection like the valves, sewer manholes, hydrometers, and hydrants in two ways, UAV photogrammetry, and traditional surveying, the georeferencing process, photogrammetric processing, the digitization of old paper maps and the geodatabase design. Three indicative network management scenarios are implemented within the GIS environment. With these scenarios, the possibilities of managing the network using GIS are highlighted.
Moreover, the thesis investigates the resulting accuracy from the application of classical topographic methods in relation to that of UAV photogrammetry for mapping and collecting data on valves, hydrants, hydrometers, pipes, and other water utility infrastructure. The products produced from the use of such systems are characterized by high-precision results. The classical survey method gave more accurate results with 15.21cm -16.8 cm accuracy when compared with those produced by the UAV method with 26.6-29.87cm accuracy, respectively. (Less)
Please use this url to cite or link to this publication:
author
Sourlamtas, Konstantinos LU
supervisor
organization
course
GISM01 20231
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Water and sewer network, GIS, UAV, surveying, photogrammetry, orthophoto, geodatabase
publication/series
Master Thesis in Geographical Information Science
report number
160
language
English
id
9114660
date added to LUP
2023-05-23 15:59:45
date last changed
2023-05-23 15:59:45
@misc{9114660,
  abstract     = {{This thesis presents the design and implementation of a Geographic Information System (GIS) for the Naoussa Municipality Water and Sewer Company for better water utility management. 
The methodology contained field data collection like the valves, sewer manholes, hydrometers, and hydrants in two ways, UAV photogrammetry, and traditional surveying, the georeferencing process, photogrammetric processing, the digitization of old paper maps and the geodatabase design. 
Moreover, the thesis investigates the resulting accuracy from the application of classical topographic methods in relation to that of UAV photogrammetry for mapping and collecting data on valves, hydrants, hydrometers, pipes, and other water utility infrastructure. 
The products produced from the use of such systems are characterized by high-precision results. Accuracies ranging between 0.15 - 0.29m have been achieved. The classical survey method gave more accurate results when compared with those produced by the UAV method. By using 85 GCPs, an accuracy of 4.5cm was achieved in the final orthophoto. 
Three indicative network management scenarios are implemented within the GIS environment. With these scenarios, the possibilities of managing the network are highlighted in terms of the coherence and integrity of the data, but also in terms of the introduction of new objects in the network and finally in terms of the network analysis possibilities that can be carried out by GIS.
This thesis tries to present and analyze the advantages and possibilities presented by GIS concerning urban water supply networks. It shows how a GIS can help the water company in its everyday work. Using GIS to manage the water company’s utility data has allowed more flexibility over the previous analog system when analyzing data, and the management of the water network is more efficient.
Keywords: Water and sewer network, GIS, UAV, surveying, photogrammetry, orthophoto, geodatabase}},
  author       = {{Sourlamtas, Konstantinos}},
  language     = {{eng}},
  note         = {{Student Paper}},
  series       = {{Master Thesis in Geographical Information Science}},
  title        = {{Developing a Geographical Information System for a water and sewer network, for monitoring, identification and leak repair - Case study: Municipal Water Company of Naoussa, Greece}},
  year         = {{2023}},
}