Manual Booking with weighting by Turns


In this module, we will view an example of how manual leveling notes collected using the one-wire method are reduced and entered in STAR*NET. This exercise also allows us to focus on the importance of specifying permanent and non-permanent reference marks when performing fieldwork in order to simplify reducing field data to STAR*NET.


  • Backsights and foresights have been recorded in these fieldnotes.
  • All backsights between benchmarks are summed.
  • All foresights between benchmarks are summed.
  • The sum of foresights is subtracted from the sum of backsights for each benchmark-to-benchmark run to determine the elevation difference.
  • The number of foresights is counted to determine the number of turns.
Reducing Manual booked leveling
  • Any known elevations are entered as E records.
  • Computed elevation differences are entered as L records.
  • Total number of turns between benchmarks is added to the L record following the elevation difference.
  • It's that simple!


Entering Leveling Measurements Weighted by Turns


  1. Open .materials\14 Leveling data\Ridge Road Levels.snproj
  2. View the movie- Entering Leveling Measurements Weighted by Turns
  3. Take the Quiz
  4. Move to next section- Leveling with weighting by Distance
Complete and Continue