LTPP Logo Long Term Pavement Performance Logo

LTPP TSSC Home

Data User's Corner





LTPP TABLE NAVIGATOR: Field View


Fields for table: TRF_ESAL_PCC_COMP_THICK

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.
BONDED_PCC_OVERLAY
Y_NVARCHAR2(1)


Code indicating whether the PCC overlay is bonded to the original surface or not
EFF_THICKNESS

NUMBER(3,1)
in

Thickness to be used in the ESAL calculation for rigid or composite pavement, following the ASSHTO guide.
SHRP_ID

VARCHAR2(4)


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

VARCHAR2(1)


A code indicating the general quality of the data.
START_DATE

DATE


Beginning date for which these properties apply to the section.
END_DATE

DATE


End date for which these properties apply to this section.
ORIGINAL_PCC_THICK

NUMBER(3,1)
in

Thickness of original PCC layer.
OVERLAID_PCC_THICK

NUMBER(3,1)
in

Thickness of overlaid PCC. Zero if no overlay exists.
OVERLAID_AC_THICK

NUMBER(3,1)
in

Thickness of overlaid AC. Zero if no overlay exists.