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DIPLOMA IN LAND SURVEY YEAR 3

LEVELING SURVEY

Course Title: Leveling Survey

Course Code: SURV/LS/102

Course Description:

Leveling Survey is a foundational course in land surveying that equips learners with the knowledge and practical skills necessary to measure height differences between points on the Earth's surface. The course emphasizes the principles, methods, and instruments used in leveling to determine elevations and establish benchmarks in engineering and construction projects.

Learners will study various types of leveling, including differential leveling, profile leveling, and cross-sectioning. Emphasis will be placed on field practices such as handling leveling instruments (e.g., dumpy level, automatic level, digital level), recording field data, performing checks, and computing reduced levels using the rise and fall and height of collimation methods.

The course prepares students for real-world applications such as road design, drainage planning, construction, and topographic mapping.

Course Objectives:

By the end of this course, students should be able to:

  1. Understand the fundamental principles of leveling.

  2. Identify and use different leveling instruments and accessories.

  3. Perform various types of leveling accurately in the field.

  4. Record, calculate, and interpret leveling data.

  5. Apply leveling techniques to engineering and construction projects.

Topics Covered:

  • Introduction to Leveling and Its Importance

  • Types of Levels and Leveling Staffs

  • Principles of Levelling (Horizontal line of sight, vertical measurements)

  • Temporary and Permanent Adjustments of Levels

  • Types of Leveling (Differential, Profile, Cross-section, Fly leveling)

  • Booking and Reduction of Levels (Rise & Fall and HOC methods)

  • Sources of Error and Error Adjustment

  • Practical Fieldwork Exercises

  • Applications in Engineering and Construction

Mode of Delivery:

  • Lectures

  • Demonstrations

  • Field Practicals

  • Assignments and Group Work

Assessment Methods:

  • Written Tests and Exams

  • Practical Field Assessments

  • Project Report

  • Continuous Assessment Tests (CATs)