SUMMARY
The calculation of Horizontal Angles in surveying involves subtracting the face left reading from the face right reading. For example, given the readings A - 26° 12' 48" (face left) and 206° 12' 59" (face right), the angle is calculated as 206° 12' 59" - 26° 12' 48" = 180° 00' 11". It is crucial to convert readings into decimal degrees for accurate calculations, especially when using a calculator without a DMS (Degrees, Minutes, Seconds) function. Additionally, care must be taken when readings cross the 0/360-degree threshold.
PREREQUISITES
- Understanding of Horizontal Angle calculations in surveying
- Familiarity with Degrees, Minutes, Seconds (DMS) format
- Basic calculator skills, particularly with DMS functions
- Knowledge of angular measurement conversions to decimal degrees
NEXT STEPS
- Learn how to convert DMS to decimal degrees accurately
- Study the use of calculators with DMS functions for surveying
- Explore common pitfalls in angle calculations in surveying
- Research methods for handling angles that cross the 0/360-degree boundary
USEFUL FOR
Surveyors, engineering students, and professionals involved in land measurement and mapping who need to calculate Horizontal Angles accurately.