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Fields for table: BAKCAL_BEST_FIT_LAYERS

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.
SHRP_ID

VARCHAR2(4)


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

NUMBER(2)


Number identifying the structure used for backcalculation purposes.
BEST_FIT_LAYER

VARCHAR2(4)


Type of layer for which the best-fit properties are valid.
BC_LAYER_TYPE
BC_LAYER_TYPEVARCHAR2(5)


Code identifying the layer type assigned for backcalculation purposes.
BEST_FIT_LAYER_THICKNESS

NUMBER(4,1)
in

Layer thickness assigned for best-fit calculation purposes.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.