Traverse calculation
The function Traverse calculation is used to calculate and adjust a traverse measured with a total station directly in the field.
This function is only available when selected instrument is a total station.
Click COGO.
Click Traverse calculation.
Select the traverse starting station from the list. Click + to add the starting station to the list.
As soon the first station is added the software extracts the list of stations connected to the first; if there are more than one, select the second station and press +. If there is only one station connected it is added automatically to the list below. This process continue until all stations that belongs to the traverse are reported in the list below.
Click Next.
Enter the traverse calculation parameters.
The page allows to select the calculation method and how to distribute the error related to angular error, linear error and elevation error.
Tolerance calculation: formula used to calculate the tolerance. The tolerance can be a fixed value or depending on the number of stations.
Coefficient value: the value of the coefficient used in the formula to calculate the tolerance.
Fixed value: the fixed value for the tolerance.
Distribution mode: how the error is distributed.
Click Calculate to calculate the traverse.
The software shows the traverse results.
Traverse data: general information regarding the traverse.
Traverse type: the type of traverse depending on its geometry.
Traverse length: the length of the traverse.
Vertexes count: the number of stations in the traverse.
Linear errors before angle balance: the linear errors before the angle balance has been executed.
Linear error: the software shows the calculated linear error and the tolerance as defined in the previous page.
Closure precision: the precision of the traverse closure.
Angular errors: the angular errors calculated.
Angular error: the software shows the calculated angular error and the tolerance as defined in the previous page.
Adjusting each vertex: the adjust value for each vertex.
Linear errors after angle balance: the linear errors after the angle balance has been executed.
Linear error: the software shows the calculated linear error after angle balance and the tolerance as defined in the previous page.
Closure precision: the precision of the traverse closure.
Elevation error: the calculated elevation error and the tolerance as defined in the previous page.
Click Report to generate a calculation report and export it in the most common formats (csv, excel, pdf).
Click Next to save the data.
Backup job and overwrite data: the current job is saved in a backup file. Stations and measurements are updated with the new positions resulting from the traverse calculation in the current job.
Overwrite data: stations and measurements are updated with the new positions resulting from the traverse calculation.
Click Adjust traverse to save the data.
Supported traverse types
Closed-loop
The closed-loop traverse has the final measurement, from the last station to the first station and a measurement from the first station to last station.
All stations measure the previous and next station in the traverse.
Closure errors are computed and distributed along the stations; first station remains on the originai position.
Closed traverse
The closed traverse has the initial and last station as known coordinates; the two stations have an orientation to another known point.. The coordinates of the first and last station are available in the Reference points list.
It is available a measurement from the first station to a known orientation point. The known orientation point coordinate is available in the Reference points list.
It is available a measurement from the last station to a known orientation point. The known orientation point coordinate is available in the Reference points list.
Closure errors are computed and distributed along the internal stations; first and last station remains on the originai position.
All stations measure the previous and next station in the traverse.
Open traverse
The open traverse has the initial and last station as known coordinates. The coordinates of the first and last station are available in the Reference points list.
All stations measure the previous and next station in the traverse.
Closure errors are computed and distributed along the internal stations; first station and last remains on the originai position.
