Lecture 7 Flashcards
Tephra
Example….
Ejected material from a volcano, creating a hazard
European and North Atlantic airspace was closed for 6 days in April 2010 after the eruption of the Icelandic volcano
Mitigation
Work against, offset; layoff that risk
Expressed as the probability of occurrence of a certain given event multiplied by the failure probability of a given infrastructure object and the consequences; usually low numbers
Risk
The probability that a network will deliver a required standard of performance; usually high numbers
Reliability
The capability to resist and recover from disruption
Resilience
The extent to which, under pre-specified circumstances, a network is able to maintain the function for which it was originally designed
Robustness
The ability of a traffic network to expand its capacity to accommodate changes for its use while maintains a satisfactory level of performance
Flexibility
What are the 8 types of disruption scenarios?
DEGREE OF THE DISCLOSURE
Full closure
Partial closure
NUMBER OF DISRUPTED COMPONENTS
Single component
Multiple components
DISRUPTION DURATION
Short-term duration
Long-term duration
SOURCE OF DISRUPTION
Random attack
Target attack
Maximum flow
Reduction in transportation flow
Advanced traffic management
Transport by other modes and procuring materials from other sources
CIKR
Critical Infrastructure and Key Resources
Perimeter Intrusion Protection System
Security fence
