Civil Engineering Reference
In-Depth Information
Fig. 4.8
Bearings used to describe a parcel of land
a compass in your hand which had a needle that always pointed north and south.
When you arrive at A you make a 45° turn to the right and walk toward point B.
You would now be walking N45°E. When you get point B you stop and face north
again. You then turn about 30° toward your left and walk in the direction of point C.
You would be walking N30°W. When you get to point “C” you stop and face south.
Now you would turn 54° to your right and walk to point D. Your walking direction
would now be S54°W. When you arrive at point D you stop and face south. You
would then turn 53° to your left and walk S53°E to A, the point of beginning.
4.7 Bearing Systems
There are at least four possible interpretations of north and all have been used by
surveyors. They are True North, Magnetic North, Grid North and Assumed North.
True north is the direction of the meridian that corresponds to the axis of the earth.
