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Fields for table: TRF_HIST_EST_ESAL

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.
METH_EST_AADT_TOT
METH_EST_AADT_TOTVARCHAR2(1)


Code indicating the method used for estimating the AADT for all lanes, two way.
METH_EST_TRK_TOT
METH_EST_TRK_TOTVARCHAR2(1)


Code indicating the method used for estimating the truck volume in all lanes, two way.
METH_EST_AADT_LTPP
METH_EST_VOL_LTPPVARCHAR2(1)


Code indicating the method used for estimating the AADT for the LTPP lane.
METH_EST_TRK_LTPP
METH_EST_VOL_LTPPVARCHAR2(1)


Code indicating the method used for estimating the truck volume in the LTPP lane.
METH_EST_ESAL_VEH
METH_EST_ESAL_VEHVARCHAR2(1)


Code indicating the method used for estimating the ESAL/Vehicle ratio.
NO_CLASSES_ESAL_EST

NUMBER(2)


Number of vehicle class with per vehicle ESAL estimates.
ESAL_EST_WGHTSRC
ESAL_EST_WGHTSRCVARCHAR2(1)


Code indicating the source of the weight data.
ESAL_EST_WGHTSCALE
ESAL_EST_WGHTSCALEVARCHAR2(1)


Code indicating the type of weight scale.
DATE_DATA_REVIEWED

DATE


Date of sheet data verification.
SHRP_ID

VARCHAR2(4)


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

NUMBER(4)


Year for which the traffic data is estimated prior to the section/project's inclusion in the LTPP experiment.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.
AADT_ALL_VEHIC_2WAY

NUMBER(8)


Estimated annual average daily traffic in all lanes, two-way.
AADT_TRUCK_COMBO_2WAY

NUMBER(8)


Estimated annual average daily traffic number of trucks in all lanes, two-way.
AADT_ALL_VEHIC

NUMBER(8)


Estimated annual average daily traffic for the LTPP lane.
AADT_TRUCK_COMBO

NUMBER(8)


Estimated annual average daily number of trucks in the LTPP lane.
ANL_KESAL_LTPP_LN_YR

NUMBER(5)
kESAL

Annual ESALs in thousands in the LTPP lane.