Surveying Field Work
Field work in surveying consists of making and recording measurements. The operations are as follows:
- Measuring distances and angles to:
- establish points and lines of reference for locating details such as boundary lines, roads, buildings, fences, rivers, bridges, and other existing features
- stake out or locate roads, buildings, utilities, and other construction projects
- establish lines parallel or at right angles to other lines, measure inaccessible distances as across rivers, extend straight lines beyond obstacles such as buildings and do any work that may require use of geometric or trigonometric principles.
- Measuring differences in elevations and determining elevations to:
- establish permanent points of known elevation (bench marks)
- determine elevations of terrain along a selected line or area for plotting profiles and computing grade lines
- stake out grades, cuts, and fills for construction projects.
- Making topographic surveys wherein horizontal and vertical measurements are combined.
- Recording field notes to provide a permanent record of the field work.
Planning
Planning is probably the most important part of the performance of a control survey utilizing GPS survey measurement techniques. Proper planning will give one added confidence that quality data will be collected. Regardless of the level of the survey, the items listed below should be addressed before the field data collection process begins.
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