Transportation Engineering - Vol 1 | 14. Horizontal alignment I by Abraham | Learn Smarter
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Typing
Memory
Math
English Adventures
Knowledge
14. Horizontal alignment I

Horizontal alignment is critical for the efficiency and safety of highways, impacting vehicle speed and operational costs. Design considerations encompass the influence of terrain on design speed and the dynamic forces on vehicles navigating horizontal curves, including centrifugal force and friction. Superelevation is employed to counteract these forces, balancing centrifugal force through proper design of road curvature and vehicle speed management.

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Sections

  • 14

    Horizontal Alignment I

    This section emphasizes the critical significance of horizontal alignment in highway design, including aspects such as design speed, horizontal curves, super-elevation, and their collective impact on safety and efficiency.

    Learning Practice

  • 14.1

    Overview

    This section introduces the concept of horizontal alignment in highway design, emphasizing its impact on efficiency, safety, and vehicle operation costs.

    Learning Practice

  • 14.2

    Design Speed

    Design speed is the critical factor in the design of horizontal alignment, influenced by the type of road and terrain.

    Learning Practice

  • 14.3

    Horizontal Curve

    This section discusses the significance of horizontal curves in road design, focusing on the forces acting on vehicles and the importance of proper curve design to prevent overturning and skidding.

    Learning Practice

  • 14.4

    Analysis Of Super-Elevation

    Super-elevation is the transverse slope provided at horizontal curves to counteract the centrifugal force acting on vehicles.

    Learning Practice

  • 14.5

    Summary

    The design speed is crucial for horizontal alignment design, significantly impacting super-elevation, which is necessary to counteract centrifugal forces.

    Learning Practice

  • 14.6

    Problems

    This section prompts students to engage with practical problems related to horizontal alignment in transportation engineering.

    Learning Practice

References

14.pdf

Class Notes

Memorization

What we have learnt

  • Horizontal alignment affect...
  • Design speed varies based o...
  • Super-elevation is crucial ...

Final Test

Revision Tests