What is a tangible reference point?

A tangible reference point is best described as a fixed object or landmark already at the scene of a traffic crash. These reference points are crucial for investigators as they provide a stable basis for measuring distances, angles, and the relative positions of vehicles involved in the crash. Using fixed objects or landmarks—such as utility poles, road signs, or intersections—helps to establish a clear understanding of the scene layout. This information is essential for accurately reconstructing the events of the crash.

In contrast, moving objects such as vehicles or pedestrians do not serve as reliable reference points since their positions can change and they are not permanent fixtures at the scene. Similarly, individuals involved in the crash may not be reliable sources of information due to emotional factors or personal biases related to the incident. Documents related to the crash, while important for records and context, do not function as physical reference points to aid in situational analysis and reconstruction. Thus, the fixed nature of landmarks makes them the most reliable choice for identifying tangible reference points.