In this course, we will learn how to combine different types of input data (ie. Conventional Total Station data, GNSS data, and Leveling data) into an adjustment. Combining data can strengthen a network by providing better azimuth control between adjoining stations (conventional), better overall coordinates (GNSS data), and better level control (leveling).

Acknowledgement and Thanks:

  • This course was designed using the curriculum and materials shared by Henri B. Ayers CLS QLS. Henri is an experienced surveyor and educator who has provided consultation, support and training throughout North America. The survey data used in these exercises were collected by Washington Metro Transit Authority in Maryland, USA. Errors have intentionally been inserted in the data for training purposes and were not a feature of the original fieldwork.


Welcome to the Combining Data section of STAR*NET Certification


  1. Watch the movie
  2. Complete the Quiz
Complete and Continue