ABSTRACT
For a general explanation of the principles of measured survey, and for practical descriptions of how to carry out many processes, there are numerous textbooks and primers available. Some of these are listed in the Suggested reading section, as are sources for obtaining such textbooks. The best way to learn the techniques and skills of measured survey is ‘on the job’ through practical experience gained with a skilled person. The purpose of this section is to indicate the broad areas where certain approaches are most applicable. Measured survey can be considered in three fields: hand survey methods, instrument survey methods and photographic based methods. As will be shown, all these methods can be mixed. Also, it may not always be possible to
use the most appropriate method. Site, personnel and financial considerations may well influence the matter. In recording an extensive area of stone floor, work with a total station theodolite might be most appropriate. However, limitation of funds could cause this to be too expensive, thus necessitating the use of much simpler hand survey methods. Similarly, the best method of recording a ledger stone will normally be photographic. There could, however, be occasions when laying a sheet of drafting film over the stone and making a one to one trace is most appropriate.
