SOURCE
U.S. Department of Transportation, Federal Transit Administration, National Transit Database

DEFINITION
Percent of public transportation used which is classified as heavy rail. "Transit ridership data in this table are based on urban transit agencies that are required to report information to the federal government because they applied for or are direct beneficiaries of urbanized area formula grants (49 USC 5307). Transit agencies with nine or fewer vehicles that would otherwise need to report under this definition typically receive a waiver from detailed reporting and, thus, are not included in the database. Data are assigned to the state of a transit agency's mailing address."

DEFINITION: Percent of public transportation used which is classified as heavy rail. "Transit ridership data in this table are based on urban transit agencies that are required to report information to the federal government because they applied for or are direct beneficiaries of urbanized area formula grants (49 USC 5307). Transit agencies with nine or fewer vehicles that would otherwise need to report under this definition typically receive a waiver from detailed reporting and, thus, are not included in the database. Data are assigned to the state of a transit agency's mailing address."

SOURCE: U.S. Department of Transportation, Federal Transit Administration, National Transit Database via StateMaster