GIS for utility management in Kolkata and other parts of eastern India

Development of a Web-Based Pipeline GIS Database

About the project

Indian Oil Corporation Limited (IOCL), one of the largest Indian commercial enterprises, had a requirement for the implementation of a Web-Based Pipeline GIS for the Paradip Haldia Barauni Pipeline (PHBPL). The PHBPL unit extends a distance of 827 km and crosses the states of Odisha, West Bengal, Jharkhand and Bihar. We had had been awarded the opportunity to map a certain part of this pipeline network.

Objectives of the Project

The primary purpose of mapping the pipeline network was to equip IOCL with the ability to search for and retrieve information about the pipeline route corridor and the Right of Way (ROW) for effective maintenance and disaster management control.

CyberSWIFT Infotech took up the project and completed it successfully. Here's a look at the specifications.

Detailed DGPS Field Survey

A detailed DGPS (Differential Global Positioning System)- based survey was conducted along the pipeline route corridor comprising a width of 1 km on both sides of the center line of the pipeline. This survey was also conducted for the Right of Way (ROW) that included an 18-meter wide corridor with 9 meters on either side of the pipeline center. The survey was conducted using DGPS receiver and other survey instruments.

In addition, we conducted the following procedures:

  • We captured the geospatial features of the area including district, taluk and village details along with the details of National Highways, State Highways, police stations, hospitals etc. to visually represent the geographical locations.
differential global positioning system field survey
  • We procured pipeline points of interest (POI)/Waypoints information along the pipeline Right of Way (ROW) including Turning points (TP), Kilometer posts, OFC joint pit points, Test Lead points(TLP), Valves, Pipeline Stations/Offices, Pipeline Crossings etc.
  • We also obtained licensed digital images for the areas of interest including taluk, state, district, block) on a scale of 1:10000 that served the purpose of accurate identification of ground classes and location of POIs.
  • DGPS-based ground control points visible on satellite images were chosen based on important structures identified during the survey.

Digital Mapping of Pipeline Route Corridor

We prepared digital maps of the pipeline route corridor and ROW incorporating all the surveyed geospatial features and POI/Waypoints/ground control points, etc. using maps from Survey of India and other reputed map providers. The steps followed are mentioned below:

  • An extensive field verification was conducted for the preparation of digital map and updating data. The digitized features were verified during the survey. This helped in improving the accuracy of the records.
  • The satellite and paper maps were scanned and edited for the geometric correction of data. The satellite maps were converted into vector structures by generating lines, points and polygons around the cells with the same classifications.
pipeline route corridor mapping
  • The base map created was geo-referenced as per the ground control points. Other data including points of interest (POI) and data layers were superimposed. Additionally, the infrastructure drawing in the AutoCAD format was converted into a .shp file format.

Web-based GIS Database Development and Installation

We prepared a web-based GIS software that follows a 3-tier client-server architecture and stores and links to the geographic reference data and the non-graphic attributes of the pipeline sections complete with their spatial data. This software has the following features:

  • Graphic map features with the ability to process, store and retrieve relevant information quickly.
  • The Pipeline Geographic Information System (PL-GIS) has all the standard features like pan, zoom in/out/rectangle, previous/next view, buffer, measurement tool, print option etc. along with pipeline-related data.
pipeline geographic information system installation
  • The system maintains auto-synchronization with the updated database. Simply put, new spatial objects along with their attributes can be easily updated in the system. The system has the ability of recording and storing all modification and editing of data for any future requirement for traceability.
  • The system provides spatial object information with events like on mouse over, on click etc. to get detailed information of specific spatial objects.
  • The system is compatible with all standard GIS engines.
  • The GIS has an extensive reporting module with pre-defined regular reports which can be generated easily. It also comes with a report builder and a mechanism to export the search results in Excel format.

The database is password-protected and the entire system is user-friendly. The PL-GIS system was installed successfully and employees were trained on its operations.

Final Deliverable

CyberSWIFT Infotech delivered a complete web-based GIS application software providing a digital map of the pipeline route corridor with geospatial features of the area of interest.