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DOE-STD-3014-96
1.
INTRODUCTION
1.1
Scope. This standard provides the user with sufficient information to evaluate and assess
the significance of aircraft crash risk on facility safety without expending excessive effort
where it is not required. The implementation guidance provides a framework of step-wise
increases in analytical sophistication aimed at eliciting only that amount of analysis needed
to demonstrate that aircraft crash either does or does not exceed a risk level of concern
equivalent to what is generally applied to other sources of risk from the operation of
hazardous material facilities. This standard establishes an approach for performing a
conservative analysis of the risk posed by a release of hazardous radioactive or chemical
material resulting from an aircraft crash into a facility containing significant quantities of
such material.1 This approach can establish whether a facility has a significant potential
for an aircraft impact, and, given an aircraft impact, whether a facility has the potential for
an accident producing significant offsite or onsite consequences. The analysis is based
on the structural properties of a facility and the inventory at a facility.
This approach contains several interrelated analytical modules: (1) a methodology for
determining the frequency of aircraft impact into a facility, based upon a conservative
simplified equation; (2) a methodology to determine the effect of an aircraft impact into a
facility through the performance of structural response analysis; (3) a methodology to
determine the frequency of a release from a facility, given the effect of an aircraft impact;
and (4) a methodology for evaluating the exposure resulting from a release. Evaluation
guidelines are provided to aid in determining the need to conduct each subsequent
analytical step. The methodologies take into consideration items determined to be
important to understanding the risk from aircraft crash into hazardous facilities. These
items include number of aircraft operations/flights; crash probabilities; aircraft
characteristics; crash kinematics; impacting missiles; local, global, and vibratory structural
damage; structure characteristics; source terms; release energy; and meteorological
conditions.
1
The thresholds for what constitutes "significant quantities" of material are established in Section 1.3, "Applicability."
5


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