LTPP Logo Long Term Pavement Performance Logo

LTPP TSSC Home

Data User's Corner





LTPP TABLE NAVIGATOR: Field View


Fields for table: SPS1_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.
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.
STATION_NO

NUMBER(3)
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.
DENSE_GRADE_AGG_BASE

NUMBER(3,1)
in

Layer thickness measurement for dense graded aggregate base.
PERM_ASPH_TREAT_BASE

NUMBER(3,1)
in

Layer thickness measurement for permeable asphalt treated aggregate base.
DENSE_GRD_ASPH_TREAT_BASE

NUMBER(3,1)
in

Layer thickness measurement for dense graded asphalt treated base.
SURFACE_AND_BINDER

NUMBER(3,1)
in

Layer thickness measurement for surface coarse and binder course.
SURFACE_FRICTION

NUMBER(3,1)
in

Thickness of surface friction course layer.