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OCI Calculations

The Weight, or relative importance of an Index,  is stored in the Condition Category library. The OCI is the result of dividing the sum of the weighted condition category indexes by the sum of the weights used.

Condition Category

Weight

Inspection Index

Result

Aesthetics

2 x

40

80

Structures

5 x

60

300

Surface

3 x

40

120

 

 

 

 

Weighted Sum Total

10

Results Total

500/10

OCI =

500/10

Total OCI is

50

Use higher Weight values to increase the relative importance of a Condition Category when calculating OCI. Use lower Weight values to decrease the relative importance of a Condition Category when calculating OCI.

Null or zero values in Index or Weight have special effects on OCI:

If the Index is

If the Weight is

Effect on OCI

NI(Not inspected)

a number

Estimated index for Condition Category used to calculate OCI. If unavailable estimate, Condition Category is not used to calculate OCI.

0

a number

Index of 0 used to calculated OCI

a number

NULL

Condition Category not used to calculate OCI

a number

0

Condition Category not used to calculate OCI

Once the OCI is calculated, the value is used to lookup the corresponding Overall Condition Rating (OCR) stored in the Condition Categories Ratings library.

 

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