Medium Surveying & GIS Theodolite & Total Station
Explain the procedure for traverse computations and adjustments.
Answer
Traverse computation procedure: calculate latitude (L = d x cos bearing) and departure (D = d x sin bearing) for each line. Sum latitudes and departures - for closed traverse, algebraic sum should be zero. Closing error = sqrt(sum L squared + sum D squared). Distribute error using Bowditch rule (proportional to line length) or transit rule (proportional to latitude/departure). Calculate adjusted coordinates from known starting point. Check by recomputing to closing point. Compute area using coordinate method if required.
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