What is the purpose of triangulation when measuring?

Triangulation is a crucial technique used in traffic crash investigations and other scenarios where precise measurements are necessary. The primary purpose of triangulation is to establish a location based on the distances measured from known reference points. This method allows investigators to accurately determine positions even when visible reference points may be lacking or inadequate.

By measuring the distance from at least two fixed reference points to the object or point of interest (such as the final resting place of a vehicle or debris), you can derive its precise location through the geometry of triangles. This process is particularly useful in complex accident scenes where direct measurements may not be possible due to obstacles or the chaotic nature of the crash aftermath.

In this context, the method does not eliminate the need for physical measurements entirely, but instead adapts to situations where straightforward measurement is not feasible. Therefore, acknowledging the value of triangulation in providing accurate spatial references in challenging conditions is essential for thorough and effective traffic crash investigations.