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LTPP TABLE NAVIGATOR: Field View


Fields for table: BAKCAL_BEST_FIT_BASIN_MASTER

Field NameCodesData TypeUnitsTest ProtocolDescription
STATE_CODE
STATE_PROVINCENUMBER(2)


Numerical code for state or province. U.S. codes are consistent with Federal Information Processing Standards.
RMSE4

NUMBER(5,2)
%

Root-Mean-Squared-Error computed for the deflection basin using deflections from 4 sensors.
ERROR_STATUS
ERROR_STATUSVARCHAR2(1)


Code identifying whether the backcalculated modulus is within or outside the standard range for the type of material and the error of the fit.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.
SHRP_ID

VARCHAR2(4)


Test section identification number assigned by LTPP program. Must be combined with STATE_CODE to be unique.
FWD_PASS

NUMBER(4)


Number identifying the consecutive FWD pass for a given test section.
BASIN_NO

NUMBER(6)


Unique number identifier for each drop basin on a given FWD pass.
BASIN_FLAG
BASIN_FLAGVARCHAR2(4)


Code identifying whether the backcalculated modulus values are considered acceptable or exhibit anomalies.
COMPOSITE_MODULUS

NUMBER(7)
ksi

Modulus value calculated for all pavement layers.
K_VALUE

NUMBER(4)
psi/in

K-Value calculated for the subgrade from the best fit method.
BETA_FACTOR

NUMBER(6,5)


Beta factor used in best fit analysis for the combined base layers.
RMSE7

NUMBER(5,2)
%

Root-Mean-Squared-Error computed for the individual deflection basin using deflections from all sensors.