Types of Assessment Investigation
Desk-based assessment (DBA)
Detailed examination of all known and potential archaeological and historic remains within a specified area. This uses available sources, such as the Surrey Historic Environment Record, historic maps, aerial photographs and documentary sources. The study compiles all available information about a site and enables a decision on the potential archaeological value of a site to be reached.Field evaluation
A survey or trial excavation designed to find out more about the archaeological remains within a proposed development area. Techniques may include fieldwalking, geophysical survey and trial trenching. The results of the evaluation will establish whether further work (often excavation) is required.Excavation
A controlled programme of fieldwork to provide a lasting record of archaeological evidence that will be unavoidably destroyed by development. Archaeological features and finds will be recorded, which will lead to a programme of post-excavation analysis and publication.Watching brief
A formal programme of observation and recording of archaeological evidence coming to light during the course of a development. This will result in the preparation of a report and archive.In all the above cases, the Heritage Conservation Team will monitor the work to ensure that appropriate professional archaeological standards are maintained.
See also the helpful BAJR publication 'Short Guide to Archaeology and the Planning Process'.
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