Transportation Engineering - Vol 1 | 13. Sight Distance by Abraham | Learn Smarter
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13. Sight Distance

The chapter discusses the importance of sight distance in ensuring safe and efficient vehicle operation on roads. It introduces various types of sight distances including stopping sight distance, overtaking sight distance, and headlight sight distance, highlighting the factors influencing these measurements. Additionally, the chapter provides mathematical equations to calculate these distances and emphasizes design considerations for different road gradients and vehicle characteristics.

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Sections

  • 13

    Sight Distance

    This section covers the concept of sight distance, its types, calculations, and significance in road design to ensure safe vehicle operation.

  • 13.1

    Overview

    This section introduces sight distance, emphasizing its importance for safe road operation and vehicle visibility.

  • 13.2

    Types Of Sight Distance

    This section outlines the different types of sight distances critical for road safety and vehicle operation.

  • 13.2.1

    Stopping Sight Distance (Ssd)

    Stopping Sight Distance (SSD) is the minimum distance required for a driver to safely stop a vehicle when encountering an obstacle.

  • 13.2.2

    Intermediate Sight Distance (Isd)

    Intermediate Sight Distance (ISD) is defined as twice the Stopping Sight Distance (SSD) and is crucial for safe overtaking operations on highways.

  • 13.2.3

    Overtaking Sight Distance (Osd)

    Overtaking Sight Distance (OSD) is the minimum distance required for a driver to safely overtake another vehicle while ensuring visibility of oncoming traffic.

  • 13.2.4

    Head Light Sight Distance

    Headlight sight distance refers to the visibility distance a driver has during night driving illuminated only by vehicle headlights.

  • 13.2.5

    Safe Sight Distance To Enter Into An Intersection

    This section discusses the importance of safe sight distance for vehicles entering intersections, emphasizing factors affecting visibility and stopping distance.

  • 13.3

    Stopping Sight Distance

    Stopping sight distance (SSD) is the critical minimum distance that ensures a driver can safely stop a vehicle without colliding with obstacles under normal driving conditions.

  • 13.4

    Overtaking Sight Distance

    Overtaking sight distance (OSD) is the minimum distance necessary for a driver to safely overtake slower vehicles on the road.

  • 13.5

    Sight Distance At Intersections

    This section discusses the importance of sight distance at intersections to ensure safe vehicle operations.

  • 13.6

    Summary

    The section highlights the importance of sight distance for safe vehicle operation on roads, detailing the various types of sight distances and their equations.

  • 13.7

    Problems

    This section presents various problems related to sight distance calculations, emphasizing the importance of accurate measurements for safe vehicle operation.

References

13.pdf

Class Notes

Memorization

What we have learnt

  • Sight distance is critical ...
  • Different types of sight di...
  • Factors such as vehicle spe...

Final Test

Revision Tests