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Public Transit

2021 NTD Database File Dictionary

Defines terms found on NTD Reporting Forms and identifies the 2021 Database File in which they are included. Please note that this does not include terms in the 2021 Data Tables and Time Series files - each of those files includes its own data dictionary.

Keywords: annual, data, ntd, data element, data point, data description, data glossary, data dictionary

PTASP TAC Update: October 2022

The latest Public Transportation Agency Safety Plan (PTASP) Technical Assistance Center (TAC) update is available.  This issue focuses on questions asked during the September Roundtable on Leadership, Tools, and Practices for Robust Safety Management Systems (SMS).  

2021 Maintenance Facilities

Contains data on maintenance facilities used by each public transportation agency, by mode,and type of service operated.

2021 Metrics

Contains metrics describing service consumption and service cost for each public transportation agency, by mode and type of service.

2021 Operating Expenses

Provides expenses to operate public transportation services for each agency,  by mode, and type of service operated. Divides expenses among NTD expense functions and object classes.

2021 Track and Roadway

Provides miles of track and roadway operated on by each public transportation agency, as well as count of special track elements.

Correction 9/14/23: Added 2020s column to Guideway Age Distribution tab. This also resulted in the addition of several records to this tab.

2021 Vehicles

Gives the age distribution and lifetime mileage of each agency's revenue fleets, and the age distribution of service fleets, by vehicle type. Gives vehicle count by type per agency.

2021 National Transit Summaries and Trends (NTST)

The Annual National Transit Summaries and Trends (NTST) Report for NTD Report Year 2021.

Recommended Citation: United States. Department of Transportation. Federal Transit Administration. 2021. National Transit Summaries & Trends 2021. National Transit Database Website. https...

2021 Employees

Contains data on hours worked by public transportation employees, head counts of employees, and wage rates.