Figure 1-4. Closed traverse
Figure 1-5. Open traverse
PART H - PROFESSIONAL SOCIETIES AND
MANUFACTURERS
1-13. Surveyors' Professional Societies. US surveyors have two professional societies: the
Surveying and Mapping Division of the ASCE and the American Congress on Surveying and Mapping.
You must be a registered civil engineer to become a member of the ASCE or a registered surveyor to
become a member of the American Congress on Surveying and Mapping. A working committee of
these organizations may be formed to resolve technical problems affecting the art and science of
surveying, such as the
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