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Fields for table: TRF_CALIBRATION_AVC

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.
DIFF_VOL_FHWA_9

NUMBER(4)


Mean difference in volume in FHWA Class 9 trucks.
FHWA_OTHER_1
VEHICLE_CLASSVARCHAR2(2)


Code indicating first other FHWA vehicle class.
DIFF_VOL_FHWA_OTHER_1

NUMBER(4)


Mean differences in volumes of trucks within first other FHWA class.
FHWA_OTHER_2
VEHICLE_CLASSVARCHAR2(2)


Code indicating second other FHWA vehicle class.
DIFF_VOL_FHWA_OTHER_2

NUMBER(4)


Mean differences in volumes of trucks within second other FHWA Class.
FHWA_OTHER_3
VEHICLE_CLASSVARCHAR2(2)


Code indicating third other FHWA vehicle class.
DIFF_VOL_FHWA_OTHER_3

NUMBER(4)


Mean differences in volumes of trucks within third other FHWA Class.
FHWA_OTHER_4
VEHICLE_CLASSVARCHAR2(2)


Code indicating fourth other FHWA vehicle class.
DIFF_VOL_FHWA_OTHER_4

NUMBER(4)


Mean differences in volumes of trucks within fourth other FHWA class.
UNCLASSIFIED_VEHICLES_PCT

NUMBER(3,1)
%

Percentage of vehicles that could not be classified during the calibration period.
SHRP_ID

VARCHAR2(4)


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

DATE


Date calibration or calibration check of WIM or AVC equipment was completed.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.
AVC_METH_VOL_MEASURE
AVC_METH_VOL_MEASUREVARCHAR2(1)


Code indicating the method for collecting independent volume measurement for AVC calibration.
AVC_METH_COUNT_LENGTH
AVC_METH_COUNT_LENGTHVARCHAR2(1)


Code indicating basis of AVC comparison, either length of count, or a given number of vehicle comparisons.
LENGTH_COUNT_TIME

NUMBER(2)
hr

Duration of count for AVC calibration check.
LENGTH_COUNT_NO_TRUCKS

NUMBER(3)


Number of truck comparisons used for AVC calibration check.
DIFF_VOL_FHWA_8

NUMBER(4)


Mean difference in volume of FHWA Class 8 trucks.