SAE J224 Collision Deformation Classification
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SAE J224 Document Information:
Title
Collision Deformation Classification
SAE International
Publication Date:
Jan 1, 1980
Scope:
1. Scope--The purpose and scope of this SAE Recommended Practice is to
provide a basis for classification of the extent of vehicle deformation
caused by vehicle accidents on the highway. It is necessary to classify
collision contact deformation (as opposed to induced deformation) so
that the accident deformation may be segregated into rather narrow
limits. Studies of collision deformation can then be performed on one
or many data banks with assurance that the data under study are of
essentially the same type.
The seven-character code is also an expression useful to persons
engaged in automobile safety, to describe appropriately a field-damaged
vehicle with conciseness in their oral and written communications.
Although this classification system was established primarily for use
by professional teams investigating accidents in depth, other groups
may also find it useful.
The classification system consists of seven characters, three numeric,
and four alphameric, arranged in a specific order. The characters
describe the deformation detail concerning the direction, location,
size of the area, and extent which, combined together, form a
descriptive composite of the vehicle damage. The individual character
positions are referred to by column number for identification and
computer storage compatibility as illustrated in Figure 1. The
definition of each classification is provided in subsequent sections.
An Appendix is also provided to assist in application and
interpretation.
1.1 Interpretation Requests--A task group has been established to
process interpretation requests that may arise during worldwide use due
to unpredictable changes in vehicle style, word meanings, translations,
user backgrounds, etc. The format of the requests and address of the
task group is given in the Appendix.
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