CREATION OF QUERY BASED DECISION SUPPORT SYSTEM FOR SELECTION OF PIPELINE CORRIDOR SITE USING RS & GIS: A MODEL STUDY

Application of Remote sensing (RS) data and Geographic information system (GIS) techniques has been given much emphasis for the pi present study is covering an aerial extension of 18 km from Patancheru to Balnagar of Hyderabad district, Telengana. geomorphological features. Interpretation of satellite data I.e. IRS 1:50,000 scales are used in the present study to understand the geomorphological nature of the study area. For suggesting the pipeline alignment in the study area the thematic information used are, the occurrence and distribution of various landforms, mining/industrial belts, densely/sparsely habituated areas (villages, towns etc.. ), forest cover, changing river courses, flood prone areas, erosion prone areas, marshy/water logged areas, stream/canal/railway line/road network etc. LISS III data of spectral resolution of 23.5m and repetitive coverage within 24 days provided an integrated information which is required for pipeline alignment. Finally a pipeline corridor map of 1:50,000 scaleis prepared using the developed query based decision support system for locating a short, safe and cost effective pipeline route. It's a regional appreciation showing a tentative alignment by shortest route with detailed information i.e. actual number of turning point, road/railway line /stream/canal etc.