LTPP Logo Long Term Pavement Performance Logo

LTPP TSSC Home

Data User's Corner





LTPP TABLE NAVIGATOR: Field View


Fields for table: SECTION_HPMS

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.
HOV_LANES

NUMBER(1)


Maximum number of lanes in both directions designated for HOV operations.
PEAK_LANES

NUMBER(1)


The number of lanes in the peak direction of flow during the peak period.
COUNTER_PEAK_LANES

NUMBER(1)


The number of lanes in the counter-peak direction of flow during the peak period.
RIGHT_TURN_LANES
TURN_LANESVARCHAR2(1)


Code indicating the presence of right turn lanes.
LEFT_TURN_LANES
TURN_LANESVARCHAR2(1)


Code indicating the presence of left turn lanes.
TOLL_CHARGED
TOLL_CHARGEDVARCHAR2(1)


Identifies sections that are toll facilities regardless of whether or not a toll is charged.
TOLL_TYPE
TOLL_TYPEVARCHAR2(1)


Code indicating the presence of special tolls (High Occupancy Tolls or other managed lanes).
WIDENING_OBS
WIDENING_OBSVARCHAR2(3)


Code indicating obstacles that prevent widening of the existing roadway for additional through lanes.
WIDENING_POTENTIAL

NUMBER(1)


The number of through lanes that could be potentially added.
TERRAIN_TYPE
TERRAIN_TYPEVARCHAR2(1)


Code identifying the type of terrain.
SHRP_ID

VARCHAR2(4)


Test section identification number assigned by LTPP program. Must be combined with STATE_CODE to be unique.
CURVE_CLASS
CURVE_CLASSVARCHAR2(1)


Code indicating the HPMS curve classification.
GRADE_CLASS
GRADE_CLASSVARCHAR2(1)


Code indicating the HPMS grade classification.
PCT_PASS_SIGHT

NUMBER(3)
%

The percent of a section meeting the sight distance requirement for passing.
RECORD_STATUS

VARCHAR2(1)


A code indicating the general quality of the data.
HPMS_SAMPLE_NO

VARCHAR2(12)


Section/grouped data identification assigned to any section of highway in the HPMS.
HPMS_SECTION_SD

VARCHAR2(1)


Code used to identify a further subdivision of an original HPMS section. Generally included as a 13th digit of the HPMS sample number.
URBAN_CODE

NUMBER(5)


The U.S. Census Urban Area Code. (2010)
FACILITY_TYPE
FACILITY_TYPEVARCHAR2(1)


Code indicating the operational characteristics of the roadway.
ACCESS_CONTROL
ACCESS_CONTROLVARCHAR2(1)


Code indicating the degree of access control for the project.
OWNERSHIP
OWNERSHIPVARCHAR2(2)


The entity that has legal ownership of a roadway. Code the level of government that best represents the highway owner irrespective of whether agreements exist for maintenance or other purposes. If more than one code applies, code the lowest numerical value.
HOV_TYPE
HOV_TYPEVARCHAR2(1)


Code identifying the type of HOV operations.