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Fields for table: GPR_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.
ANALYSIS_SOFTWARE_VER

VARCHAR2(30)


Name and version of analysis software used.
GPR_OPERATORS

VARCHAR2(10)


Initials of data collection equipment operators.
GPR_INTERPRETERS

VARCHAR2(10)


Initials of the data interpreter(s).
PLATE_HIGH_CAL_SLOPE

NUMBER(3,2)


Slope of the plate height calibration equation.
PLATE_HIGH_CAL_INTERCEPT

NUMBER(5,3)


Intercept of the plate height calibration equation.
RAW_DATA_FILE

VARCHAR2(15)


Filename of associated raw data file
COMMENTS

VARCHAR2(120)


Additional comments regarding the GPR measurement process.
SHRP_ID

VARCHAR2(4)


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

DATE


Date survey was performed.
GPR_TIME

VARCHAR2(4)
hhmm

Time of day at beginning of measurement run.
LANE_POSITION
LANE_POSITIONVARCHAR2(1)


Code indicating lane position of the GPR measurement
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.
CONSTRUCTION_NO

NUMBER(2)


Event number used to relate changes in pavement structure with other time dependent data elements. This field is set to 1 when a test section is initially accepted into LTPP and is incremented with each change to the layer structure.
ANTENNA_MODEL_MAN

VARCHAR2(25)


Manufacturer and model of GPR antenna used
CONTROL_SYS_MODEL_MAN

VARCHAR2(25)


Manufacturer and model of GPS control system used.