Practice Two Straights Intersect At A Chainage Of 2500 M With An Angle Of Deflection As 40°. The Straights Are To Be Connected By A Simple Circular Curve... (2.51)

Practice: Two straights intersect at a chainage of 2500 m with an angle of deflection as 40°. The straights are to be connected by a simple circular curve...

Lesson 2.51Exercises for Practice

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6 sample questions

Question 1.
Define the term 'radius of curve'.
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Think about the center point of a circle.
Question 2.
What is a tangent length?
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It relates to where the straight path meets the curve.
3Question 3.
What is a simple circular curve?
- A curve with variable radius
- A curve with constant radius
- A straight line
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Consider the characteristics of a circle.
4Question 4.
True or False: The longer the tangent length, the sharper the curve.
- True
- False
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Think about how curves connect straight sections.
Question 5.
A circular curve with a deflection angle of 60° joins two straights. Given the radius is 400 m, calculate the lengths of the tangents and the long chord.
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Use trigonometric identities to find the lengths.
Question 6.
In a design for a roadway, a simple circular curve needs to accommodate traffic at a speed of 80 km/h. Calculate the necessary radius, considering a maximum allowable lateral acceleration.
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Remember the safe turning radius at higher speeds.

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