A+ | New 2026
What are the five levels of Collision Inves ga on?
1. Repor ng
2. On-scene
3. Technical Evalua on
4. Professional reconstruc on
5. Cause analysis
What are the five major events of a collision?
1. Point of Possible percep on
2. Point of actual percep on
3. Point of no escape
4. First harmful event
5. Point of final rest
Explain "first harmful event"
The first contact between two traffic units, between a traffic unit and another object, or first
contact with a highway surface during an overturn
Defini on of Opera onal factors
The driver CAN control or change
Defini on of Condi onal factors
The driver has NO control or cannot change
3 opera onal factors
-Trip prepara on (sleep,drinking)
-Driving strategy (speeding, reckless driving)
-Evasive ac ons (braking, swerving, backing)
3 condi onal factors
-People (drunk, impairment, or handicap)
-Roads (potholes, bad weather, poor roadway design, obstruc ons)
-Vehicles (bad brakes, no lights, defec ve steering)