LTPP Logo Long Term Pavement Performance Logo

LTPP TSSC Home

Data User's Corner





LTPP TABLE NAVIGATOR: Field View


Fields for table: TRF_MEPDG_VEH_CLASS_DIST

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.
SHRP_ID

VARCHAR2(4)


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

NUMBER(4)


Year for which values apply,
VEHICLE_CLASS
VEHICLE_CLASSNUMBER(2)


Vehicle classification code using 13 bins as described in the FHWA Traffic Monitoring Guide.
TRF_DATA_TYPE
TRF_DATA_TYPENUMBER(1)


The basis for the estimates.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.
PERCENT_OF_TRUCKS

NUMBER(5,2)
%

The percentage of the truck population represented by this class in the data source