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Fields for table: SMP_LAYOUT_INFO

Field NameCodesData TypeUnitsTest ProtocolDescription
SHRP_ID

VARCHAR2(4)


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

NUMBER(3,3)
m

Depth from pavement surface to top of thermistor PVC probe.
DEPTH_RESIS_TOP

NUMBER(3,3)
m

Depth for pavement surface to top of resistivity probe.
LOC_PIEZOMETER

NUMBER(3)
m

Longitudinal location of observation peizometer.
OFFSET_PIEZOMETER

NUMBER(3,2)
m

Offset (transverse) location of observation peizometer.
DEPTH_TOP_PIEZOMETER

NUMBER(4,3)
m

Depth from pavement surface to top of observation peizometer.
PIEZO_DEPTH

NUMBER(4,3)
m

Physical length of the peizometer.
LOC_CLIMATE_SENSORS

NUMBER(3)
m

Longitudinal location of weather station.
OFFSET_CLIMATE_SENSORS

NUMBER(3,2)
m

Offset (transverse) location of weather station.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.
STATE_CODE
STATE_PROVINCENUMBER(2)


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

DATE


Instrumentation installation date.
LOC_INSTRUMENT_HOLE

NUMBER(3)
m

Longitudinal location of instrumentation hole.
OFFSET_INSTRUMENT_HOLE

NUMBER(3,2)
m

Offset (transverse) location of instrumentation hole.
THERM_PROBE_DESIGN
THERM_PROBE_DESIGNNUMBER(1)


Code indicating the type of pavement temperature probe design used.
DEPTH_THERM_METAL_TOP

NUMBER(3,3)
m

Depth from pavement surface to top of thermistor metal probe.
DEPTH_THERM_METAL_BOTTOM

NUMBER(3,3)
m

Depth from pavement surface to bottom of thermistor metal probe.