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Fields for table: SPS1_UNBOUND_AGG_BASE

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.
SECOND_LIFT_THICKNESS

NUMBER(2)
in

Nominal second lift placement thickness.
THIRD_LIFT_THICKNESS

NUMBER(2)
in

Nominal third lift placement thickness.
FOURTH_LIFT_THICKNESS

NUMBER(2)
in

Nominal fourth lift placement thickness.
SIGNIFICANT_EVENTS

VARCHAR2(80)


Any significant event occurring during construction that may influence performance.
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.
STATE_CODE
STATE_PROVINCENUMBER(2)


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

NUMBER(2)


Unique sequential number assigned to pavement layers, starting with layer 1 as the deepest layer (subgrade).
DATE_BEGAN

DATE


Date operations began.
DATE_COMPLETE

DATE


Date activity was completed.
COMPACTION_TYPE
COMPACTION_TYPENUMBER(1)


Code indicating type of compaction equipment used.
COMPACTION_TYPE_OTHER

VARCHAR2(40)


Type of compaction equipment used if other than those specified.
GROSS_WEIGHT

NUMBER(3,1)
tons

Gross weight of primary compaction equipment.
FIRST_LIFT_THICKNESS

NUMBER(2)
in

Nominal first lift placement thickness.