Surveying and Geomatics | 2. Curves by Abraham | Learn Smarter
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Knowledge
2. Curves

The unit discusses the necessity of curves in transportation systems, specifically focusing on horizontal and vertical curves. It categorizes curves into various types and elucidates essential components and parameters for their layout. The chapter also touches upon the significance of super-elevation in enhancing road and railway safety and comfort.

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Sections

  • 2

    Curves

    This section covers the significance of curves in road and railway design, discussing various types and components, along with the importance of super-elevation.

    Learning Practice

  • 2.1

    Introduction

    This section introduces curves in communication lines, focusing on horizontal and vertical curves.

    Learning Practice

  • 2.2

    Classification Of Horizontal Curves

    This section covers the classification of horizontal curves including simple, compound, reverse, and transition curves.

    Learning Practice

  • 2.2.1

    Simple Curves

    This section provides an overview of simple curves in road and railway design, including their characteristics, applications, and essential parameters involved in their layout.

    Learning Practice

  • 2.2.2

    Compound Curves

    This section explores compound curves, which consist of two or more simple curves with different radii bending in the same direction.

    Learning Practice

  • 2.2.3

    Reverse Curves

    Reverse curves consist of two arcs bending in opposite directions with a common tangent at their junction, often used in railway sidings.

    Learning Practice

  • 2.2.4

    Transition Curves

    Transition curves facilitate a smooth change from a straight to a circular path, reducing vehicle jerk from centrifugal force.

    Learning Practice

  • 2.3

    Simple Circular Curves

    This section details the characteristics and components of simple circular curves used in roads and railways, and explains how to compute necessary parameters for their layout.

    Learning Practice

  • 2.3.1

    Various Parts Of A Curve

    This section discusses the various components of simple circular curves, highlighting their significance in road and railway design.

    Learning Practice

  • 2.3.2

    Designation Of Horizontal Curves

    The section explains how simple circular curves are designated, focusing on the relationship between the radius and the angle subtended by a chord of a specific length.

    Learning Practice

  • 2.3.3

    Elements Of A Simple Circular Curve

    This section outlines the essential elements of a simple circular curve, including the definitions and relationships of critical components required for effective design and layout.

    Learning Practice

  • 2.3.4

    Methods Of Horizontal Curve Setting

    This section explains the two primary methods for setting horizontal curves using linear and angular approaches.

    Learning Practice

References

2a.pdf

Class Notes

Memorization

What we have learnt

  • Curves are essential in tra...
  • Different types of horizont...
  • Super-elevation is crucial ...

Final Test

Revision Tests