MANUAL OF INSTRUCTIONS for the Guidance of Surveyors
MANUAL OF INSTRUCTIONS for the Guidance of Surveyors
MANUAL OF INSTRUCTIONS for the Guidance of Surveyors
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Curves26. (1) Curve intersection measurements to survey lines shall include:(a) distance from B.C. and/or E.C. to intersection on sub-tangent orchord.(b) angle with sub-tangent or chord at intersection.(c) distance from intersection on sub-tangent or chord to intersectionon curve.(2) Curve in<strong>for</strong>mation shall be shown as follows:(a) Simple curves. . . . Deflection angle between tangents (Delta)S.T . . . . Sub-tangentR . . . . Radius=ST =R =(b) Replacement <strong>of</strong> planned or constructed spiral curves shall showthree simple curves as stated in Sub-section 26.(2)(a) <strong>of</strong> this Partand shall include <strong>the</strong> total Deflection Angle and total sub-tangent.T . . . . Total Deflection AngleT.S.T. . . . . Total Sub-tangent=ST =R ==ST =R ==ST =R =T =T.S.T.=32