Abstract

Asset management is always a crucial task in governance. Civic agencies provides different kind services to the citizens like water supply, electricity, security, transport etc. These agencies maintains a number of assets to provide various services to the citizens. The assets in water utility service includes overhead tanks (OHT), clear water reservoirs, rising mains with different diameters, water source like river etc. Most of the management and monitoring of these assets is done manually through hard copy maps or sometimes through survey. The maps are often outdated and survey results are prone to biasedness. Utilization of geo-spatial technologies for effective management and monitoring of these assets are very limited in India. GIS also plays an important role in other aspects of water utility services like asset mapping, management, network analysis, planning etc. In the present study a pilot project on monitoring and management of assets related to water management for Dehradun city is attempted using open source geo-spatial technologies. A web based centralized management and monitoring is preferred over manual and distributed approach in the scenario like asset management at city level. Web GIS is the latest technology which is capable of offering management of assets in spatial domain. A user friendly Urban Water Information System (UWIS) has been developed using open source tools. UWIS provides functionalities for visualization and editing of spatial data related to water utility at city and zonal level. Web Mapping Services (WMS) are used for the visualization whereas Web Feature Services (WFS-T) are used for the spatial data editing and to perform vector based GIS analysis. The water utility related spatial data like Overhead Tanks (OHT), Water pipe lines connected to the OHTs’, source of water supply like river, reservoirs or wells etc. and other base layers were all created in QGIS software using satellite data as a WMS layer from ISRO Bhuvan (www.bhuvan.nrsc.gov.in). All the spatial layers were imported to POSTGIS then published as WMS and WFS layers in Geoserver. The study aims to provide a GIS web portal for city and zone level water utility spatial data visualization and querying to the policy and decision makers and data editing facility to the working level official. Separate authentication have been implemented for WMS and WFS access. The study is further extended to perform multi-criteria spatial decision analysis using QGIS for risk factor analysis of OHTs’.

Urban Water Information System (UWIS): A web based spatial decision support system for management and monitoring water utility assets

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