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Container Condition Index Calculation

This calculation works from the bottom up, starting by calculating the components furthest down and working up to the current record. For example, a Park asset contains Playgrounds with a weight of 1.5, and a Playground contains Swingsets with a weight of 0.3.  Retired assets are not included in the calculaton.

Park (today’s estimated OCI 85)

Playground1 (today’s estimated OCI 92)

  • Swingset1 (75)
  • Swingset2 (84)
  • Swingset3 (91)

Playground2 (96)

  • Swingset1 (64)
  • Swingset2 (74)

First, average the Swingset estimated OCIs:

Park (today’s estimated OCI 85)

  • Playground1 (today’s estimated OCI 92) with Average Swingset OCI= (75+84+91)/3=83.33
  • Playground2 (96) with Average Swingset OCI= (64+74)/2=69.00

Then calculate the playground’s CCI, folding in the swingsets using the swingset weight:

Park (today’s estimated OCI 85)

  • Playground1 CCI = ((92*1.0) + (83.33*0.3)) / (1.0+0.3) = 90.00
  • Playground2 CCI = ((96*1.0) + (69.00*0.3)) / (1.0+0.3) = 89.77

Next, average the playground CCIs:

Park (today’s estimated OCI 85) with Average Playground CCI = (90.00+89.77)/2=89.88

And finally, calculate the Park CCI, folding in the playgrounds using the playground weight:

Park CCI = ((85*1.0)+(89.88*1.5))/(1.0+1.5) = 87.93

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