Question
a.
The distance between the points of intersection of the extreme tangents to the transition curve is kept greater than 7500 m x sum of grade changes at the point of intersection
b.
The rate of change of grade is limited to 0.3% per 30 m length of the curve
c.
According to I.C.A.O. the maximum longitudinal gradient along a runway is limited to 1.5%
d.
All the above.
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