Accident reconstruction necessitates a fundamental understanding of investigation techniques combined with engineering principles.

The size, weight, and specialized components in modern tractor-trailers and buses are important to understand on fundamental and engineering levels. With a deeper understanding of the vehicle we can determine causal factors when one is involved in an incident.

Electronic/Event Data Recorders (EDR) exist in most vehicles on the road today. Since 1994, EDR has been proliferating through passenger and commercial vehicles.

Human factors is the study of the abilities and limits of the human when exposed to a situation or stimulus. The understanding of the limits a human can achieve helps to understand the causal factors when an incident occurs.