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Fields for table: SPS6_LAYER_THICKNESS

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.
BINDER_COURSE

NUMBER(3,1)
in

Measured thickness of binder course layer.
SURFACE_COURSE

NUMBER(3,1)
in

Thickness of surface course layer.
SURFACE_FRICTION

NUMBER(3,1)
in

Thickness of surface friction course layer.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.
LAYER_NO_RUT

NUMBER(2)
in

Layer number of rut level-up layer.
LAYER_NO_MILL

NUMBER(2)
in

Layer number of mill replacement layer.
LAYER_NO_BINDER

NUMBER(2)
in

Layer number of binder course.
LAYER_NO_SURFACE

NUMBER(2)
in

Layer number of surface course.
LAYER_NO_FRICTION

NUMBER(2)
in

Layer number of surface friction course.
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.
DATE_COMPLETE

DATE


Date activity was completed.
STATION_NO

NUMBER(4)
ft

Test section relative station number from the beginning of the section.
OFFSET

NUMBER(3)
in

Offset distance from outside shoulder lane edge joint or edge stripe.
DATE_BEGAN

DATE


Date operations began.
RUT_LEVEL_UP

NUMBER(3,1)
in

Thickness of rut level-up layer.
MILL_REPLACE

NUMBER(3,1)
in

Thickness of mill replacement layer.