Stadia Theory SURVEY2

Stadia is a tacheometric form of distance measurement that relies on a fixed-angle intercept while tacheometry is the procedure by which horizontal distances and difference in elevations are determined indirectly using subtended intervals and angles observed with a transit or theodolite on a graduated rod or scale.

Two Types of Observation Horizontal Sights Inclined Sights

The Stadia Method for Horizontal Sights where:

From the previous figure,

Example: HORIZONTAL SIGHTS

Solution:

Inclined Stadia Sights

Enhanced Projection on the Rod

Example: INCLINED SIGHTS