2015 Data Dictionary

Dictionary that defines terms found on NTD Reporting Forms and the Database File in which they are included.  Please note that Data Tables and Time Series files include a Data Dictionary tab. 

2015 Vehicles

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

Keywords: commuter rail locomotive, coach, bus, van, automobile, cutaway, aerial tramway, articulated bus, automated guideway vehicle, cable car, commuter rail passenger coach, self-propelled commuter rail passenger car, double decker bus, ferryboat, heavy rail passenger car, inclined plane vehicle, light rail vehicle, minivan, monorail vehicle, over the road bus, school bus, sports utility vehicle, streetcar, trolleybus, vintage trolley

2015 Track and Roadway

Provides miles of track and roadway and grade crossings operated on by each agency, mode, and type of service, organized into categories by its physical characteristics.

Keywords: exclusive right of way, mixed traffic, elevated on structure, elevated on fill, open cut, subway, tunnel, controlled access, fixed guideway

2015 Stations

Gives the number of stations used by each agency, mode, and type of service.

Keywords: passenger station, ada accessible, inaccessible, elevator, escalator, multi-modal station, stops, transit centers, transit hubs

2015 Service

Contains data on service operated, organized by agency, mode, and type of service.

Keywords: vehicle, spare, mile, hour, schedule, directional route mile, drm, revenue mile, vehicle mile, vrm, revenue hour, vehicle hour, vrh, unlinked passenger trip, upt, ridership, boarding, passenger mile, pm, pmt, service supplied, service consumed, ridership, efficiency, train, speed, trip length, passengers per hour, deadhead

2015 Operating Expenses

Gives operating expense for each agency, mode, and type of service, divided among NTD's four expense functions, or among NTD's object classes.

Keywords: vehicle operations, vehicle maintenance, non-vehicle maintenance, facility maintenance, general administration, operations, cost, financial reports, financial records, labor, operator salaries, wages, fringe benefits, services, utilities, taxes, tires, fuel, purchased transportation

2015 Metrics

Contains ratios describing service and cost for each agency, mode, and type of service.

Keywords: fare recovery ratio, farebox, operating expense, operating cost, unlinked passenger trip, ridership, boarding, fare per trip, average fares, fare earnings, fare revenues, cost per hour, passengers per hour, cost per passenger, cost per passenger mile

2015 Maintenance Facilities

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

Keywords: facility size, ownership, owned, leased, garage, heavy maintenance, transit garages, maintenance garages

2015 Funding Sources

Contains sources of revenue applied to operating or capital expenses.

Keywords: operating cost, fare, fund, tax, 5307, uaf, federal, state, local, directly generated, revenues, grant

2015 Fuel and Energy

Contains data on fuel and energy use by agency, mode, and type of service.

Keywords: gallons, kilowatt-hours, kwh, diesel, gas, gasoline, liquified natural gas, lng, liquified petroleum gas, lpg, propane, ethanol, compressed natural gas, cng, biodiesel, electricity, electric propulsion, battery, resources, alternative fuels