CCF is the condition code factor
CRV is the replacement cost of the facility
n = the number of facilities in the real property database
Condition Code 18
|
5 |
Excellent; no work required. |
|
4 |
Good; less than 10 percent of components need repair. |
|
3 |
Fair; more than 30 percent of components need repair. |
|
2 |
Poor; greater than 30 percent of components need repair. |
|
1 |
Unserviceable; failed system overall. |
System Weights 19
40% Structural
30% Mechanical
30% Electrical
The condition code factor is assumed to be a decaying exponential function as the cost to repair increases dramatically with deteriorating condition:
CCF = k1e { [k2 (1 − NCC)]}
Where: k1, k2 = constants, assumed to be 1; exp = “e” or 2.718.
and
NCC= Net Condition Code (sum of condition codes times system weights for each sample facility averaged for sample size)
Sample Calculation
Parameters: Assume an inventory of 100 facilities, $100M total current replacement value, and a 1 building sample.
Mechanical assessment: Failing heating units, aging unreliable chillers. Condition Code = 3
Electrical assessment: 2 systems need replacement. Condition Code = 4
Net Condition Code (NCC)=((3 × 0.4)+(4 × 0.3)+(3 × 0.3))/1=3.3
CCF=exp(1-3.3)=0.10 (10%)
Where: k1, k2 are assumed 1 for this example
BMAR=($100M)(0.10)=$10M
|
18 |
The condition code factors and parametric weights are provided for illustrative purposes only. Each agency would need to develop its own set of condition code factors/parametric weights. |
|
19 |
The condition codes for system weights are provided for illustrative purposes only. Each agency would need to develop its own set of conditions codes. |
