How accurate are we?

[Talisien]

quote:Originally posted by Oxbeast
I reckon if a feture is within 2m it is good enough

This question is of significance where I work as a difference of 2m can mean hitting or missing the archaeology - we're getting pretty accurate on predicting where it is, but we also need accuracy down to a metre to ensure the 360, when cutting the trench, is holding the correct line; a subject and one that is not always covered sufficiently at university level or even in site training.

We need to understand the pros and cons of each method and use a combination approaches. Still need to teach people how to triangulate and analogue techniques - always surprises me (why, I don't know) the number of people who look blankly at you when you ask them where the point of origin is for the site grid. And batteries do run-out and EDMs fails. Oh, happy days B)