Route surveying is required to establish alignment for transportation facilities. Surveys of some type are required for practically all phases of route alignment planning, design and construction works. The initial design of the route is generally based on a series of connected straight lines. In the final design, a curve is provided at the intersection of the straight lines to effect a gradual change in the direction and/or gradient. Thus, in order to plan and perform the route surveys, the survey engineer needs to be familiar with the geometry of curves and how they are used in the route alignment procedure. The design and construction of curves is an important aspect of route surveying of roads, railways, canals, etc.

Objective of Module 11

Objective of module 11 is to discuss in detail the geometry and methods for setting out of curves those are used in route alignment.

Lessons 37 Simple Circular Curve

Lessons 38 Layout of a Simple Circular Curve

Lessons 39 Transition and Combined Curve

Lessons 40 Vertical Curve

Summary of Module 11

Glossary of Module 11

Self Test of Module 11

<< Back