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Fields for table: INV_MAJOR_IMP

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.
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.
MAJOR_IMP_YEAR

NUMBER(4)


Year in which major improvement occurred.
MAJOR_IMP_TYPE
MAINT_WORKNUMBER(2)


Code indicating type of work performed.
MAJOR_IMP_QUANTITY

NUMBER(6)


Quantity of work performed.
MAJOR_IMP_THICKNESS

NUMBER(3,1)
in

Increase in pavement thickness, if any, from the improvement activity.
MAJOR_IMP_COST

NUMBER(3)
1000s $/lane mi

Total cost for the major improvement, excluding non-pavement costs.
MAJOR_IMP_TYPE_OTHER

VARCHAR2(40)


Type of work performed if other than those specified