Identify and discuss four sources of errors encountered during the surveying task and explain how these errors could be minimised.
Description Imagine using a levelling instrument and graduated staff, level the stations of two controlled traverses. Undertake the following two surveys: i. A levelling survey between the centre point of the kerb at the East entrance and the gully grating at South entrance on our associate college( London South East College Upper holly hill)(Measurement is […]