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2 cards from this section. Quick, good the night before a test.
What is the formula for calculating the length of the curve?
Consider the components involved in circular curves.
Define the term 'radius' in relation to a circular curve.
Relate it to the curve itself.
What does the radius (R) represent in a circular curve?
Think about what defines the shape of the curve.
Is the tangent length (T) calculated using the formula T = R * tan(Δ/2)?
Recall the components of the tangent calculation.
You have a circular curve with a radius of 300 m and a deflection angle of 75°. Calculate the length, tangent length, and mid-ordinate.
Ensure all angle calculations are in degrees.
Discuss the impact of increasing the radius from 200 m to 400 m on the safety and design of a road curve.
Think about vehicle speed and road safety principles.
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