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Traverse Loop for closure errors

Traverse Loop for closure errors

Traverse Loop for closure errors

is there any program/software that helps me on Closure Errors? Can we do it on AutoCad/Land Development? If so, how?? thanks!

RE: Traverse Loop for closure errors

Yes Land Desktop will. I cant remember exactly where in the menu it is at. Your data collector will also do traverse adjustments. Hope this helps.


Timothy Day
Field Engineer and Surveyor
Brasfield and Gorrie Gen.Contractors
Birmingham, Al. U.S.A.

RE: Traverse Loop for closure errors

thanks guys..

RE: Traverse Loop for closure errors


I trust you have figured out how to reduce traverses by now, since your original post was back in May 2007.?

Craig T. Bailey, PE

RE: Traverse Loop for closure errors

ctbailey ...unfortunately I have not found any software that can help me find the error for traverse closure. I  Still use the excel.

RE: Traverse Loop for closure errors

Could you clarify what you mean by
    "help me find the error for traverse closure"?

Find out what the error is (diff between "true" and computed coords)?

Find out what caused it (small random errors, small systematic errors, or large blunder)?

Either way, sounds like a basic surveying problem.

RE: Traverse Loop for closure errors

Hi underhill

It is to find out what the error is (diff between "true" and computed coords)...i just want to know if there is any program/software to do the cals for me.  I calculate by hands then input the values into microsoft excel manually and that is hassle.

RE: Traverse Loop for closure errors

I'd still recommend Copan from UGL (though i'm biased).

It can calculate, and adjust, closures for "raw" traverses (ie, those having backsight and foresight angles, vertical angles and slope distances), and for "reduced" traverses (ie, those having bearings and horizontal distances). And it's free.

See http://www.underhill.ca/Software/Copan/Windows/CopanWin.php
for details.

I also still don't see why you can't use "any old" survey software. Does anyone know why it might be difficult to solve LAguy's problem using other software?

RE: Traverse Loop for closure errors

I'm not exactly sure what your question is.

Are you trying to determine your closure, or are you trying to balance your traverse?

One CANNOT "reduce one's closure error to zero."

What one CAN do, is balance the traverse by DISTRIBUTING the closure.

There are some fairly easy equations that will do this, and there are a number of software programs that will do this as well. Some of the software programs are free, some are quite expensive. Some use methods that are no longer considered to be valid.

If you can give me some more information on what you're trying to accomplish, I'll try to help you out.





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