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COLLISION DEFORMATION CLASSIFICATION

At Fatal road traffic accidents or those resulting in personal injury may require forensic investigation of the vehicle and also the accident scene to establish the cause. E J Allen & Associates support the Institute of Traffic Accident Investigators and also the Institute of Automotive Engineer Assessors as well as other learned bodies.
Green vehicle: CDC - 12FDEW3 = PDOF -1Oº
White vehicle: CDC - O1FZEW4 = PDOF +35º 		An international standard which crosses language barriers

The Collision Deformation Classification (CDC) for the green vehicle is:

1 2 F D E W 3

12
F
D
E
W
3		 =
=
=
=
=
=		 Principal Direction of Force
Location of Deformation
Location of Damage
Vertical Location
Type of Damage Distribution
Maximum Extent of Penetration		 =
=
=
=
=
=		 12 o'clock refined to -10º
Frontal
Distributed across the front
Everything below the belt line
Wide
3 on a scale of 1—5 from front to main bulkhead

The Collision Deformation Classification (CDC) for the white vehicle is:

0 1 F Z E W 4

01
F
Z
E
W
4		 =
=
=
=
=
=		 Principal Direction of Force
Location of Deformation
Location of Damage
Vertical Location
Type of Damage Distribution
Maximum Extent of Penetration		 =
=
=
=
=
=

1 o'clock refined to ÷35º
Frontal
End to end with right bias
Everything below the belt line
Wide
4 on a scale of 1-5 from front to main bulkhead

Sometimes insurers instruct repairers to repair a damaged vehicle or to dispose of the vehicle as salvage before the serious nature of the personal injury or the potential dispute is appreciated. It is then that the significance of the collision deformation classification is realised. E J Allen & Associates always quote the Collision Deformation Classification in their Damage Assessment Reports. This 7 digit classification which gives a 3-dimensional description and specified magnitude of the damage, retains the information for reference should it be required at a future date.

In court, a judge may accept the proper explanation based upon the CDC SAE standard contained in our Assessors' reports, whereas they will often reject elaboration of impact descriptions such as heavy', 'moderate' or light'.