A reciprocal leveling is observed across a wide river and the reciprocal level readings were taken between points A and B as follows. With instrument set up near A, the rod readings are 3.411m and 3.414 m. The reciprocal level readings on the opposite side of the river at point B arev 4.281, 4.284, 4.283 and 4.285m. With the instrument set up near B the rod readings on the opposite side of the river at point A, the rod readings are 3.153, 3.150, 3.156 and 3.154. a. Compute the difference in elevation between A and B with the instrument setup near A. b. If the elevation A is 100m, what is the elevation at B?

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Errors in surveying

An error in surveying is defined as the difference between two or more values of an identical quantity. However, the estimates are never accurate and there will always be a degree of variability regardless of the research tool or method used. These differences are known as errors that need to be reduced or eliminated to maintain certain levels of accuracy. Even if you carefully follow the prescribed test procedures, the considerations may contain errors.