PLANE TABLE SURVEY

1. PLANE TABLE SURVEYING
 Plane table is a graphical method of surveying in which the field
work and the plotting is done simultaneously..
 It is very simple method ..
 It is a conventional instrument..

2. ACCESSORIES
 Plane table
 Alidade
 Compass
 Level tube
 U-frame
 Plumbing fork
 Plane paper
 Tripod
 Pin
 Screws

3. METHODS OF PLANE TABLE
 Radiation method
 Intersection method
 Traversing method
 Resection method

4. APPLICATIONS
 Plane table is used in surveying and related disciplines to
provide a solid and level surface on which to make field
drawings,charts and maps.
 It is used to fill in details between station fixed by
triangulation method or theodolite traversing method.
 Magnetic areas.
 Industrial areas.

5. ERRORS IN PLANE TABLING
The common sources of error may be classified as :
 Instrumental errors
 Errors of manipulation and sighting
 Errors of plotting

6. ADVANTAGES
 It is one of the most rapid method of surveying.
 It is less costly than theodolite survey.
 It is most suitable for small scale map.
 Field notes are not required and thus the possibility of mistakes in
booking is eliminated.
 It is particularly suitable for filling in details in hilly areas and in
magnetic areas where chain and compass surveys are not suitable.

7. DISADVANTAGES
 It is not suitable in monsoon and high wind.
 It is not suitable for large scale surveys and accurate work.
 It is not suitable for surveying a densely wooded area.
 Due to heaviness, it is inconvenient to transport.
 The absence of field notes is sometimes inconvenient if the
survey has to be replotted to a different scale.

8. THANK YOU