Geospatial solution for the row constraints associated with power transmission lines

Anypower transmission line Right-Of-Way (ROW) is a strip of land required by the owner of Transmission Line to construct, to maintain the statutory clearances to operate and maintain the Transmission line. The width of a right-of-way depends on the voltage of the proposed transmission line, sag of the conductor and required clearances by nearby objects. The impact of ROW on the Transmission line is very significant during construction stage as well as operation/maintenance stage. The correct study of impact of ROW of various aspects such as, tree cutting, crop compensation (during construction and maintenance), benefit ratio evaluation in forest area are very essential for the overall cost of Transmission line.

This paper illustrate the use of methodology evaluate the impact of ROW of Transmission line in estimating the cost of the project and construction challenges & arriving the solutions. Object of this study to utilize the GIS (Geographical Information System) technology application to provide correct & timely inputs in pre-tendering stage and proper risk assessment. Also assess to get proper execution planning with respect to resource and logistics. In this study, GIS technology used as a powerful platform to integrate data from different sources for the better planning of resources and transmission corridor data has captured on 3D Surface Model/Digital Elevation Models are generated from stereo image pairs using photogrammetric technique to optimize the route alignment/ROW constraints and to achieve the best route for construction/maintenance point of view.