Tutorial: Analyzing and Reducing Survey Data

This tutorial demonstrates how to analyze and reduce survey data.

In the following exercises, you will use the Survey Command Window to query survey data. Then, you will look at two ways to reduce the survey data.

You can reduce survey data by:

• Adjusting a traverse loop using the standard compass rule method or other adjustment methods.
• Using the network least squares adjustment method.

Each method produces slightly different results. The standard compass rule adjustment method adjusts the traverse loop and sideshots. The least squares method adjusts each of the observations so that the sum of the residuals is at a minimum.

Note:

Before performing the steps in this tutorial, you must have already created the survey database Survey 1 and imported the field book file Survey-1.fbk. For more information, see the Survey Setup and Importing and Viewing Survey Data tutorials.