Performance Network

The Highway Performance Network is a newly created geospatial network based on FHWA’s 2013 HPMS network and the latest NPMRDS HERE network. Through spatial integration, all TMC data contained in the HERE NPMRDS data are transferred to the 2013 HPMS network. The goal and objective of this effort is to enable more in-depth analysis of travel time data along with highway capacity data and other public defined data items such as the federally defined highway functional classification system. State highway agencies and other users can take advantage of what have been accomplished here for the integration of NPMRDS data to the native HPMS system through a relatively simple geospatial tagging process.

Data Attribute Definition

Data definitions are based on HPMS Field Manual and various FHWA guidance and documents on NPMRDS at: http://www.ops.fhwa.dot.gov/freight/freight_analysis/perform_meas/vpds/npmrdsfaqs.htm

HPMS:

1. year_recor
1. year during which HPMS data was gathered and compiled
2. state_code
1. American National Standards Institute (ANSI) code for state in which road segment resides in
3. route_id
1. route Identification code for route of which road segment is a part
4. begin_poin
1. beginning point of road segment’s corresponding link in ArcGIS
5. end_point
1. ending point of road segment’s corresponding link in ArcGIS
6. aadt_vn
1. average number of cars over given road segment in a day (uses annual data to compute average); also called Annual Average Daily Traffic (AADT)
7. county_cod
1. Federal Information Processing Standard (FIPS) code of county in which road segment in question resides
8. f_system_v
1. functional system (i.e. operational type) of road segment, as determined by Federal Highway Administration (FHWA)

Code	Description
1	Interstate
2	Principal Arterial – Other Freeways and Expressways
3	Principal Arterial – Other
4	Minor Arterial
5	Major Collector
6	Minor Collector
7	Local

9. facility_t
1. type of facility (i.e. operational characteristics) of road

Code	Description
1	One-Way Roadway	Roadway that operates with traffic moving in a single direction during non-peak period hours.
2	Two-Way Roadway	Roadway that operates with traffic moving in both directions during non-peak period hours.
3	Couplet	Non-inventory direction side of a “couplet”. A couplet is defined as: parallel roadways with same route designation and which complement each other in providing access to both termini located in urban area of city/town connects to roadways with two-way traffic separated by physical or visual element (e.g. buildings, landscape, terrain, etc.) not designated as Interstate
4	Ramp	Non-mainline junction or connector facility contained within a grade-separated interchange.
5	Non Mainline	All non-mainline facilities, excluding ramps
6	Non Inventory Direction	Individual road/roads of a multi-road facility that is/are not used for determining primary length of facility
7	Planned/Unbuilt	Planned roadways that has yet to be constructed.

10. hov_lanes_
1. maximum number of high occupancy vehicle (HOV) lanes (in both directions) designated for HOV operations
11. hov_type_v
1. type of HOV operations

Code	Description
1	Full-time HOV	Section has 24-hour exclusive HOV laves (HOV use only; no other use permitted).
2	Part-time HOV	Normal through lanes used for exclusive HOV during specified time periods.
3	Part-time HOV	Shoulder/parking lanes used for exclusive HOV laves during specified time periods.

12. iri_vn
1. statistic that estimates amount of roughness of given road segment, also called International Roughness Index (IRI)
13. nhs_vn
1. type of road operations with National Highway System (NHS)

Code	Description
1	Non Connector NHS
2	Major Airport
3	Major Port Facility
4	Major Amtrak Station
5	Major Rail/Truck Terminal
6	Major Inter City Bus Terminal
7	Major Public Transportation or Multi-Modal Passenger Terminal
8	Major Pipeline Terminal
9	Major Ferry Terminal

14. ownership_
1. entity with legal ownership of road

Code	Description
1	State Highway Agency
2	County Highway Agency
3	Town or Township Highway Agency
4	City of Municipal Highway Agency
11	State Park, Forest or Reservation Agency
12	Local Park, Forest or Reservation Agency
21	Other State Agency
25	Other Local Agency
26	Private (non-railroad)
27	Railroad
31	State Toll Road
32	Local Toll Authority
40	Other Public Instrumentality (e.g. airport)
50	Indian Tribe Nation
60	Other Federal Agency
62	Bureau of Indian Affairs
63	Bureau of Fish and Wildlife
64	U.S. Forest Service
66	National Park Service
67	Tennessee Valley Authority
68	Bureau of Land Management
69	Bureau of Reclamation
70	Corps of Engineers
72	Air Force
73	Navy/Marines
74	Army
80	Other

15. route_numb
1. number of route of which road segment is a part
16. route_qual
1. route type

Code	Description
1	No qualifier/not signed
2	Alternate
3	Business route
4	Bypass business
5	Spur
6	Loops
7	Proposed
8	Temporary
9	Truck route
10	None of the above

17. route_sign
1. type of route signing present along road segment

Code	Description
1	Not signed
2	Interstate
3	U.S.
4	State
5	Off-Interstate Business Marker
6	County
7	Township
8	Municipal
9	Parkway marker or Forest Route marker
10	None of the above

18. strahnet_t
1. type of STRAHNET operation along route

Code	Description
1	Regular STRAHNET
2	Connector

19. structure_
1. type of structure present/utilized by road

Code	Description
1	Entire section is a Bridge
2	Entire section is a Tunnel
3	Entire section is a Causeway

20. through_la
1. number of lane designated for through traffic
21. toll_charg
1. indicates if any toll facilities are present along road segment

Code	Description
1	Toll charged in one direction only.
2	Toll charged in both directions.
3	No toll charged

22. toll_type_
1. indicates type of special toll operations, if any, along road segment

Code	Description
1	This section has toll lanes but no special tolls (e.g. HOT lanes).
2	This section has HOT lanes.
3	This section has other special tolls.

23. truck_vn
1. indicates if road segment is part of National Truck Network (NTN) or state-sponsored truck route

Code	Description
1	Section is on the National Network (NN)
2	Other State-designated truck route (optional)

24. urban_code
1. U.S. Census code of urban area in which road segment is located

TMC:

1. TMC_1
1. Traffic Location code
2. ADMIN_LEVE
1. country in which TMC resides
3. ADMIN_LE_1
1. state in which TMC resides
4. ADMIN_LE_2
1. county in which TMC resides
5. DISTANCE
1. length of TMC, measured in miles
6. ROAD_NUMBE
1. road number (ex. I-40)
7. ROAD_NAME
1. name of road (where applicable)
8. LATITUDE
1. latitude of start point of TMC
9. LONGITUDE
1. longitude of start point of TMC
10. ROAD_DIREC
1. direction of travel from start point of TMC
11. Shape_Leng
1. length of road segment’s corresponding link in ArcGIS
12. LEN_MILE
1. actual length of road segment, in miles