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Cartegraph Campus

Scenario Network OCI Calculations

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You must have a Cartegraph OMS advanced feature extension to access this feature.

A Scenario's network OCI calculation may be weighted by the value of a particular field for the asset. The Adjust OCI Using field for a scenario allows the user to specify which field for the asset is used when calculating the Scenario's network OCI. The values for this field contain an integer, number, or quantity fields for the asset. If no field should be used and each asset should be treated equally, select the value None.

Example

This example shows how the network OCI is calculated.

Asset type Pavement
Adjust OCI using Length
Plan year length 1 year

Assets in the Scenario Filter

Pavement segment 1

Length: 10 feet

Estimated OCI: 70

The activity applied when running the scenario increases the segment's ending OCI to 90.

Pavement segment 2

Length: 50 feet

Estimated OCI: 60

The activity applied when running the scenario increases the segment's ending OCI to 70.

Pavement segment 3

Length: 30.48 meters (100 feet)

Estimated OCI: 60

The activity applied when running the scenario increases the segment's ending OCI to 90.

Since two of the pavement segments are in feet and the third is in meters, all pavement segments are converted to the default quantity type, which is feet. The total length of the three pavement records making up the scenario is 160 feet.

The ending OCI is calculated as follows:

  • ( Sum(pavement length * ending oci) ) / total pavement length

  • (10 * 80) + (50 * 70) + (100 * 90)  / 160 = 83.125

The ending OCI for the scenario is 83.125.

Use the Adjust OCI Using field to supply a field on the asset so an asset that has a greater value has a larger impact on the overall Ending OCI. If each asset should be treated identically, set the value to None. This field is also used in the OCI calculation for scenarios that have a scenario type of OCI Target.

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