Environmental Engineering Reference
In-Depth Information
The total Resilience Index is an additive function of all resilience Indexes as
follows
The resilience index is composed of sub-indicators. In the same way the
economic,
environmental, technological and social resilience element could be
obtained, as follows. Under the
assumption that the sudden indicator change
resumes is a linear function of time, then we can write
1
2
R
w
q
t
j
i
i
(5)
If it is assumed that the time interval for resuming starting state is equal
for all indicators than and then the Resilience Index for the individual case is
t
R
w
q
0
2
j
i
i
(6)
The total Resilience Index is an additive function of all resilience Indexes
as follows
w R
R
w
R
w R
w R
w R
TOT
(7)
n
n
1
CP
2
IC
3
PC
MP
Where
R
TOT
- total resilience index
R
CP
- Company Profit
R
CI
- Company Income
R
PC
- Product Cost
R
MP
- Company Manpower
W
n
- weighting factor
The procedure for the determination of the weighting coefficient is based on
the ASPID method designed to quantify weighting coefficients under specific
constrain defined in the verified for every option.
In the procedure for the determination of weighting coefficients there are
several steps, namely:
