U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Policy Information
A Sample View will be created by the HPMS software to be exported as a Character Separated Value (CSV) file. The format of this file is identified below.
The Calculation Method for each data item’s value falls into several categories generally based on the format of the data. These rules are applied when a Sample Panel section’s limits are occupied by several sections, for the purpose of determining a single value for a particular data item. These calculation methods are as follows:
No Calculation – Value will be consistent with the value reported for a given section.
Combination – Calculated value will be based on a concatenation of multiple (text) values that fall within the limits of the section.
Minimum Value – Calculated value will be based on the lowest value in a range of values that fall within the limits of the section.
Predominance – Calculated value will be based on the most prevalent value that falls within the limits of the section.
Weighted Averaging – Calculated value will be based on an averaging of values that fall within the limits of the section, weighted by the length of the section.
The following table includes the name of the Data Item, the format of the value for each item, and the particular calculation method that is used for the Data Item.
| Field Name | Format | Calculation Method |
|---|---|---|
| Year_Record | Date: YYYY | No Calculation |
| State_Code | Numeric(2,0) | No Calculation |
| Route_ID | Character(60) | No Calculation |
| Begin_Point | Numeric(6,3) | No Calculation |
| End_Point | Numeric(6,3) | No Calculation |
| Section_Length | Numeric(6,3) | End_Point "Begin_Point" (where State reported value is 0) |
| F_System | Codes: 1-7 | No Calculation |
| Urban_Code | Codes: 1-99999 | No Calculation |
| Facility_Type | Codes: 1-6 | No Calculation |
| Structure_Type | Codes: 1-3 | No Calculation |
| Access_Control | Codes: 1-3 | Predominance |
| Ownership | Codes: 1-80 | Predominance |
| Through_Lanes | Numeric(2,0) | No Calculation |
| HOV_Type | Codes: 1-3 | Predominance |
| HOV_Lanes | Numeric(2,0) | Predominance |
| Peak_Lanes | Numeric(2,0) | Predominance |
| Counter_Peak_Lanes | Numeric(2,0) | Predominance |
| Turn_Lanes_R | Codes 1-6 | Predominance |
| Turn_Lanes_L | Codes 1-6 | Predominance |
| Speed_Limit | Numeric(2,0) | Predominance |
| Toll_Charged | Codes: 1-2 | Predominance |
| Toll_Type | Codes: 1-3 | Predominance |
| Route_Number | Character(8) | Predominance |
| Route_Signing | Codes: 1-10 | Predominance |
| Route_Qualifier | Codes: 1-10 | Predominance |
| AADT | Numeric(6,0) | No Calculation |
| AADT_Single_Unit | Numeric(6,0) | Weighted Averaging |
| Pct_Peak_Single | Numeric(2,0) | Weighted Averaging |
| AADT_Combination | Numeric(6,0) | Weighted Averaging |
| Pct_Peak_Combination | Numeric(2,0) | Weighted Averaging |
| K_Factor | Numeric(2,0) | Weighted Averaging |
| Dir_Factor | Numeric(2,0) | Weighted Averaging |
| Future_AADT | Numeric(6,0) | No Calculation |
| Future_AADT_Year | Date: YYYY | No Calculation |
| Signal_Type | Codes 1-5 | Predominance |
| Pct_Green_Time | Numeric(2,0) | Weighted Averaging |
| Number_Signals | Numeric(2,0) | No Calculation |
| Stop_Signs | Numeric(2,0) | No Calculation |
| At_Grade_Other | Numeric(2,0) | No Calculation |
| Lane_Width | Numeric(2,0) | Predominance |
| Median_Type | Codes: 1-7 | Predominance |
| Median_Width | Numeric(2,0) | Predominance |
| Shoulder_Type | Codes: 1-7 | Predominance |
| Shoulder_Width_R | Numeric(2,0) | Predominance |
| Shoulder_Width_L | Numeric(2,0) | Predominance |
| Peak_Parking | Codes: 1-3 | Predominance |
| Widening_Obstacle | Codes: X,A-G | Combination |
| Widening_Potential | Numeric(1,0) | Minimum Value |
| Curves_A | Numeric(6,3) | No Calculation |
| Curves_B | Numeric(6,3) | No Calculation |
| Curves_C | Numeric(6,3) | No Calculation |
| Curves_D | Numeric(6,3) | No Calculation |
| Curves_E | Numeric(6,3) | No Calculation |
| Curves_F | Numeric(6,3) | No Calculation |
| Terrain_Type | Codes: 1-3 | Predominance |
| Grades_A | Numeric(6,3) | No Calculation |
| Grades_B | Numeric(6,3) | No Calculation |
| Grades_C | Numeric(6,3) | No Calculation |
| Grades_D | Numeric(6,3) | No Calculation |
| Grades_E | Numeric(6,3) | No Calculation |
| Grades_F | Numeric(6,3) | No Calculation |
| Pct_Pass_Sight | Numeric(3,0) | Minimum Value |
| IRI | Numeric(3,0) | Weighted Averaging |
| PSR | Numeric(3,1) | Weighted Averaging |
| Surface_Type | Codes: 1-11 | Predominance |
| Rutting | Numeric(3,1) | Weighted Averaging |
| Faulting | Numeric(3,1) | Weighted Averaging |
| Cracking_Percent | Numeric(3,1) | Weighted Averaging |
| Cracking_Length | Numeric(6,1) | Weighted Averaging |
| Year_Last_Improv | Date: YYYY | Predominance |
| Year_Last_Construction | Date: YYYY | Predominance |
| Last_Overlay_Thickness | Numeric(3,1) | Weighted Averaging |
| Thickness_Rigid | Numeric(3,1) | Weighted Averaging |
| Thickness_Flexible | Numeric(3,1) | Weighted Averaging |
| Base_Type | Codes: 1-8 | Predominance |
| Base_Thickness | Numeric(2,0) | Weighted Averaging |
| Climate_Zone | Codes: 1-4 | Predominance |
| Soil_Type | Codes: 1-2 | Predominance |
| County_Code | Numeric(5,0) | Predominance |
| NHS | Codes: 1-9 | No Calculation |
| Future_Facility | Code: 1 | No Calculation |
| STRAHNET_Type | Codes: 1-2 | No Calculation |
| Truck | Codes: 1-2 | No Calculation |
| Maintenance_Operations | Codes: 1-80 | Predominance |
| VSF | Numeric(3,1) | Capacity Calculation* |
| Capacity | Numeric(6,0) | Capacity Calculation* |
| Design_Speed | Numeric(2,0) | Design Speed Calculation* |
| Vertical_Alignment | Codes: 0-4 | Vertical Alignment Calculation* |
| Horizontal_Alignment | Codes: 0-4 | Horizontal Alignment Calculation* |
| Volume_Group | Codes 1-12 | No Calculation |
| Expansion_Factor | Numeric(3,2) | Sample Adequacy Calculation |
*Values may be overridden by the States if found to not be representative of actual value.
