class PavementConditionIndex::Lookups::ObservedCorrectedDeductValues

Constants

ESTIMATED_VALUES

The reference charts do not actually include these lines,

so this is what we think they would be.

How the interpolated values were determined [concrete: q5, q7, q8]:

Average (or weighted average) of the lines surrounding it.
This should be a good estimate.

How the extrapolated values were determined [asphalt: q8, q9, q10; concrete: q10]:

Took the difference between the last two known, observed q-value arrays, and added that difference
to the last known q-value array. (Asphalt Ex: q8 = q7 + (q7 - q6), q9 = q7 + 2(q7 - q6), etc.)
This estimate may be less accurate.
OBSERVED_VALUES
X_VALUES