Surveying and Geomatics | 1. Plane Tabling by Abraham | Learn Smarter
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Knowledge
1. Plane Tabling

Plane tabling is a traditional survey method used for creating maps directly in the field. It allows for simultaneous observations, mapping, and contouring but has become largely obsolete with the advent of modern surveying technologies like GPS and Total Stations. The theodolite is highlighted as a versatile instrument for measuring angles and levels, with various types including electronic models that enhance precision in survey work.

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Sections

  • 1.17

    Plane Tabling

    Plane tabling is a graphical surveying method for map preparation conducted in the field, enabling simultaneous observation and contouring.

    Learning Practice

  • 1.17.1

    Advantages And Disadvantages Of Plane Table Surveying

    Plane table surveying provides a unique mapping method with both advantages, such as real-time observations, and disadvantages like weather dependency.

    Learning Practice

  • 1.17.2

    Methods Of Plane Tabling

    This section discusses the three main steps involved in using a plane table for surveying and outlines the four principal methods for effective plane tabling.

    Learning Practice

  • 1.18

    Theodolite Surveys

    Theodolite surveys utilize theodolites to measure angles and lines of sight for accurate positioning in surveying.

    Learning Practice

  • 1.18.1

    Various Types Of Theodolites

    This section introduces various types of theodolites, detailing their functionalities, use cases, and the key differences among them.

    Learning Practice

  • 1.18.2

    Various Parts Of A Vernier Theodolite

    This section describes the key components of a vernier theodolite and their functions in surveying.

    Learning Practice

  • 1.18.3

    Technical Terms

    This section defines crucial technical terms related to using theodolites in surveying, highlighting their importance in precise measurements.

    Learning Practice

  • 1.18.4

    Measurement Of Horizontal Angles

    This section discusses the methods and techniques involved in measuring horizontal angles using a theodolite.

    Learning Practice

  • 1.18.5

    Measurement Of Vertical Angles

    This section explains how to measure vertical angles using a theodolite, detailing the procedures for accurately determining angles of elevation and depression.

    Learning Practice

  • 1.18.6

    Prolonging A Straight Line

    Prolonging a straight line with a theodolite involves specific procedures for aligning points in the field accurately.

    Learning Practice

  • 1.18.7

    Levelling With A Theodolite

    This section discusses how a theodolite can be utilized as a levelling instrument to determine height differences between two points.

    Learning Practice

  • 1.18.8

    Traversing With A Theodolite

    Traversing with a theodolite involves measuring angles and distances to create a framework of connected survey lines, essential for mapping and civil engineering.

    Learning Practice

  • 1.18.9

    Methods Of Theodolite Traversing

    This section outlines the methods of traversing with a theodolite, focusing on measuring angles and bearings in both closed and open traverses.

    Learning Practice

  • 1.18.10

    Errors In Theodolite Observations

    Errors in theodolite observations can arise from several factors and can be minimized through careful techniques and adjustments.

    Learning Practice

References

1f.pdf

Class Notes

Memorization

What we have learnt

  • Plane tabling involves crea...
  • The advantages of plane tab...
  • The theodolite can measure ...

Final Test

Revision Tests