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Fields for table: DLR_NC_TEST_MATRIX

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.
REAR_AXLE_LOAD

NUMBER(4,1)
kN

Rear axle loading of the truck.
WHEEL_PATH_OFFSET_M

NUMBER(4)
mm

Distance from the edge of pavement to the outside of the tire track for OH data.
WHEEL_PATH_OFFSET_V

NUMBER(4)
mm

Visual estimate of the distance from the tire track to the defined wheel path for NC data.
COMMENTS

VARCHAR2(80)


An unformatted field for the comments pertaining to the information stored in the table.
REVISION_DATE

DATE


Date of latest revision to the information stored in this table.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.
SHRP_ID

VARCHAR2(4)


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

VARCHAR2(7)


Character string that uniquely identifies each series of test traces.
RUN_NUMBER

NUMBER(3)


Consecutive number of the test runs within a defined testing matrix. This number is also used as the file extension for the raw data files.
TEST_DATE

DATE


Date of the peak determination.
MATRIX_INDEX

VARCHAR2(2)


Distinct coded reference number for controlled truck testing used to aggregate the tests according to the type of truck, vehicle speed, and general time of testing (early morning, midmorning, or afternoon).
TRUCK_ID

VARCHAR2(2)


Number generated to uniquely identify the truck.
RUN_TIME

VARCHAR2(5)
hh:mm

The time of the test as determined by the data acquisition computer's internal clock. A test is comprised of multiple traces.
DESIRED_SPEED

NUMBER(3)
km/h

Storage of the desired truck speed for cross reference to calculated values below.