Data Preparation
- Projection: All the files were converted into US83TM10 projection using ArcMap 10.1
- Transformation: All shapefiles were first reclassed into Boolean, then rasterized and transformed into .ti format in ArcMap 10.1 before importing to Idrisi Selva
- Resample : All raster file were then resampled to the same cell size (5400 x 5400), coordinates, and same number of row and columns.

Since the analysis focuses on the potential alternative route within BC boundary, the reference pipeline route used in calculating the least cost pathway was clipped to fit within BC boundary. Also, a point shapefile was created as an endpoint was needed in calculating the least cost pathway, the endpoint was located at the Burnaby Terminal.