2. Exercises for Practice
The chapter covers the different types of curves in road design, including simple circular, compound, and reverse curves. It delves into the features, applications, and importance of transition curves, super-elevation, and grade changes in vertical curves. Various exercises challenge students to apply theoretical concepts to practical scenarios, enhancing comprehension of curve design in civil engineering.
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Sections
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2.48It Was Found, While Setting A Simple Circular Curve Using Offsets From The Tangents, That For X =16 M, And Y = 0.28 M. Find The Radius Of The Curve. (Ans: R = 457.28 M)
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2.49A Right Hand Simple Circular Curve Connects Two Straights Ai And Ib Where A And B Are The Tangent Points. The Azimuth Of Each Straight Is 50° 43' 12" And 88° 22' 14", Respectively. The Curve Passes Through Point C Of Coordinates (321.25, 178.1) M. If The Coordinates Of A Are (240.40, 125.90) M, Compute The Radius Of Curve And Degree Of Curve.
This section details the computation of the radius and degree of a simple...
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2.50There Are Two Tangents Xi And Iy For A Railroad Circular Curve Where X And Y Are The Tangent Points Having Coordinates (240.4e, 125.9n) And (253.8e, 218.65n), Respectively, And The Coordinates Of The Mid-Point On The Curve Is (60.13e, 195.89n). Compute The Radius Of Curve, The Deflection Angle, And The Length Of The Curve.
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2.52A Right Hand Circular Curve Connects Two Straights Ab And Bc Intersected At Point B Which Has A Chainage Of 2000 M...
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2.56Two Straights Intersect Making A Deflection Angle Of 59°00'24"...
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2.64A Road 7.30 M Wide Deflects Through An Angle Of 18°47'26"...
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2.65A Wholly Transitional Curve Having Equal Tangent Lengths Is To Be Designed To Connect Two Intersecting Straights...
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2.72A Vertical Parabolic Sag Curve Is To Be Designed To Connect A Down-Gradient Of 1 In 20 With An Up-Gradient Of 1 In 15...
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3.2Anderson, James M., And Mikhail, Edward M., (2012), Surveying: Theory And Practice Tata Mcgraw Hill (Indian Edition).
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3.3Arora, K. R., (2015), Surveying Vol. I & Ii, Standard Book House.
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3.4Basak, N.n., (2017), Surveying And Levelling, Tata Mcgraw Hill.
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3.6Duggal, S.k., (2017), Surveying, Vol. I & Ii, Tatamc-Graw Hill.
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3.7Gopi, Satheesh; Sathikumar, R., And Madhu, N. (2017), Advanced Surveying, Pearson India.
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3.8Kanetkar, T.p. And Kulkarni, S.v., (2006), Surveying And Levelling, Vol. I And Ii, Vidyarthi Griha Prakashan, Pune.
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3.9Punmia, B.c., Jain, Ashok K., Jain, And Arun K., (2016), Surveying, Vol. I & Ii, Laxmi Publications.
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3.11Venkatramaiah, C., (2011), Textbook Of Surveying, University Press.
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3.12Uren, John And Price, Bill, (1994), Surveying For Engineers, Palgrave Macmillan.
What we have learnt
- Curves play a crucial role in road design, influencing safety and vehicle dynamics.
- Understanding transition curves is essential for smooth shifts from straight paths to circular arcs.
- Super-elevation helps counteract centrifugal forces acting on vehicles in curves.
Key Concepts
- -- Simple Circular Curve
- A basic curve defined by its radius, connecting two tangents.
- -- Transition Curve
- A spiral curve used to gradually introduce curvature, connecting straights to circular curves.
- -- Superelevation
- The banking of the road at a curve, designed to help counterbalance the centrifugal force acting on vehicles.
- -- Vertical Curve
- A smooth transition between two gradients on a road, either crest or sag, designed for visibility and comfort.
Additional Learning Materials
Supplementary resources to enhance your learning experience.