U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Policy Information
FIPS PUB 5-2, Federal Information Processing Standard Publication, 1987 May 28, U.S. Department of Commerce, National Bureau of Standards.
HPMS is the official source of data on the extent, condition, performance, use, and operating characteristics of the nation’s highways. Certain data items are provided for all public roads, including length, lane-miles, and travel, which are used in the apportionment of Federal-Aid highway funds.
Table E-1 provides information on how HPMS data are used in the Federal-Aid Highway Program apportionment formula.
| Fund | Factors | Weight |
|---|---|---|
| Interstate Maintenance | Interstate System Lane Miles | 33 1/3% |
| Vehicle Miles Traveled on the Interstate System | 33 1/3% | |
| National Highway System (NHS) | Lane Miles of Principal Arterial Highways (excluding Interstate System) | 25% |
| Vehicle Miles Traveled on Principal Arterial Highways (excluding Interstate System) | 35% | |
| Total Lane Miles of Principal Arterial Highways divided by the State’s Population | 10% | |
| Surface Transportation Program (STP) | Lane Miles of Federal-aid Highways | 25% |
| Vehicle Miles Traveled on Federal-aid Highways | 40% | |
| Highway Safety Improvement Programs | Lane-Miles of Federal-aid Highways | 33 1/3% |
| Vehicle-Miles Traveled on Federal-aid Highways | 33 1/3% | |
| State and Community Highways Safety Grants | Public Road Miles (should be consistent with Certified Mileage) | 25% |
