Whole Circle Bearing and Quadrantal Bearing (Reduced Bearing) are two different types of bearing measurement used in surveying. To choose between these two types of bearing measurement a surveyor must know the differences between them. The main differences between Whole Circle Bearing and Quadrantal Bearing (Reduced Bearing) are given below.
Whole Circle Bearing | Quadrantal Bearing/Reduced Bearing | |
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2 | Only the magnetic north line is considered as reference line in whole circle bearing system. | Both magnetic north and south lines are considered as reference line in quadrantal bearing system. |
3 | The cloclwise angle from the reference line is Only taken | Both cloclwise and anticloclwise angle from the reference line is Only taken |
4 | The value of the whole circle bearing varies from 0° to 360° | The value of the reduced bearing varies from 0° to 90° |
5 | Example: 26°, 121°, 245°, 350° etc. | Example: N26°E, S59°E, S65°W, N10°W etc. |