For Linear or Planar traverses, the traverse orientation is used if the **Terzaghi Weighting** option is applied to contour or rosette plots. See the Terzaghi Weighting topic for information about the significance and use of the Terzaghi Weighting option. The weighting is also used in the calculation of weighted mean vectors, when Sets are created.

The traverse orientation has no effect on UNWEIGHTED plots of your data, for Linear or Planar traverses.

For borehole traverses, the borehole traverse orientation is essential for converting the alpha / beta measurements into dip/dipdirection or strike/dip data. The borehole traverse orientation is also used in the Terzaghi Weighting computation, for which purpose it is treated as a linear traverse (since it is in fact a linear traverse).