Seasonally-Adjustment Transportation Data
Seasonally-Adjustment Transportation Data
Release Note
BTS is withholding the scheduled release of the passenger and combined indexes for January. The passenger index is a statistical estimate of airline passenger travel and other components based on historical trends up to December 2019. As a result, the estimates have yet to fully account for the impact of the coronavirus. Air freight is also a statistical estimate. Since air freight makes up a smaller part of the freight index, the freight TSI is being released as scheduled.
Description
Statisticians use the process of seasonal-adjustment to uncover trends in data. Monthly data, for instance, are influenced by the number of days and the number of weekends in a month as well as by the timing of holidays and seasonal activity. These influences make it difficult to see underlying changes in the data. Statisticians use seasonal adjustment to control for these influences.
Controlling of seasonal influences allows measurement of real monthly changes; short and long term patterns of growth or decline; and turning points. Data for one month can be compared to data for any other month in the series and the data series can be ranked to find high and low points. Any observed differences are “real” differences; that is, they are differences brought about by changes in the data and not brought about by a change in the number of days or weekends in the month, the occurrence or non-occurrence of a holiday, or seasonal activity.
Columns
| Name | Socrata field name | Column name in sgr mount | Data type | Description |
|---|---|---|---|---|
| RAIL_PM | rail_pm | rail_pm | Number | Rail Passenger Miles |
| ENPLANE_I | enplane_i | enplane_i | Number | Enplanements for U.S. Air Carrier International, Scheduled Passenger Flights (Thousands) |
| RPM_I | rpm_i | rpm_i | Number | Revenue Passenger Miles (RPMs) for U.S. Air Carrier International, Scheduled Passenger Flights (Thousands) |
| RPM_D_D11 | rpm_d_d11 | rpm_d_d11 | Number | Seasonally-Adjusted Revenue Passenger Miles (RPMs) for U.S. Air Carrier Domestic, Scheduled Passenger Flights (Thousands) |
| RPM_D11 | rpm_d11 | rpm_d11 | Number | Seasonally-Adjusted Revenue Passenger Miles (RPMs) for U.S. Air Carrier Domestic and International, Scheduled Passenger Flights (Thousands) |
| IDX_NATURAL_GAS_D11 | idx_natural_gas_d11 | idx_natural_gas_d11 | Number | |
| TSI_Total_C | tsi_total_c | tsi_total_c | Number | The monthly change in value of the Transportation Services Combined Index. |
| WATERBORNE_D11 | waterborne_d11 | waterborne_d11 | Number | Seasonally-Adjusted Tonnage for Internal U.S. Waterways (Millions Of Short Tons) |
| NATURAL_GAS_D11 | natural_gas_d11 | natural_gas_d11 | Number | Seasonally-Adjusted Natural Gas Consumption (Billion Cubic Feet) |
| RAIL_PM_D11 | rail_pm_d11 | rail_pm_d11 | Number | Seasonally-Adjusted Rail Passenger Miles |
| ASM_D11 | asm_d11 | asm_d11 | Number | Seasonally-Adjusted Available Seat Miles (ASMs) for U.S. Air Carrier Domestic and International, Scheduled Passenger Flights (Thousands) |
| ASM | asm | asm | Number | Available Seat Miles (ASMs) for U.S. Air Carrier Domestic and International, Scheduled Passenger Flights (Thousands) |
| IDX_TRUCK_D11 | idx_truck_d11 | idx_truck_d11 | Number | |
| INV_TO_SALES | inv_to_sales | inv_to_sales | Number | |
| TSI_Passenger_C | tsi_passenger_c | tsi_passenger_c | Number | The monthly change in value of the Transportation Services Passenger Index. |
| TRUCK_D11 | truck_d11 | truck_d11 | Number | Seasonally-Adjusted Truck Tonnage (Truck Tonnage Index) |
| RAIL_FRT_INTERMODAL | rail_frt_intermodal | rail_frt_intermodal | Number | Rail Freight Intermodal Traffic |
| RAIL_FRT_CARLOADS_D11 | rail_frt_carloads_d11 | rail_frt_carloads_d11 | Number | Seasonally-Adjusted Rail Freight Carloads |
| RAIL_FRT_CARLOADS | rail_frt_carloads | rail_frt_carloads | Number | Rail Freight Carloads |
| AIR_RTMFM_D11 | air_rtmfm_d11 | air_rtmfm_d11 | Number | Seasonally-Adjusted Air Revenue Ton Miles Of Freight And Mail (RTMFM) (Ton Miles) |
| ENPLANE_D_D11 | enplane_d_d11 | enplane_d_d11 | Number | Seasonally-Adjusted Enplanements for U.S. Air Carrier Domestic, Scheduled Passenger Flights (Thousands) |
| ENPLANE_D | enplane_d | enplane_d | Number | Enplanements for U.S. Air Carrier Domestic, Scheduled Passenger Flights (Thousands) |
| LOAD_FACTOR | load_factor | load_factor | Number | Load Factor for U.S. Air Carrier Domestic and International, Scheduled Passenger Flights (Thousands) |
| MANUF | manuf | manuf | Number | |
| LOAD_FACTOR_D_D11 | load_factor_d_d11 | load_factor_d_d11 | Number | Seasonally-Adjusted Load Factor for U.S. Air Carrier Domestic, Scheduled Passenger Flights (Percent) |
| RPM_I_D11 | rpm_i_d11 | rpm_i_d11 | Number | Seasonally-Adjusted Revenue Passenger Miles (RPMs) for U.S. Air Carrier International, Scheduled Passenger Flights (Thousands) |
| IDX_RAIL_PM | idx_rail_pm | idx_rail_pm | Number | |
| IDX_RAIL_FRT_INTERMODAL | idx_rail_frt_intermodal | idx_rail_frt_intermodal | Number | |
| ASM_D_D11 | asm_d_d11 | asm_d_d11 | Number | Seasonally-Adjusted Available Seat Miles (ASMs) for U.S. Air Carrier Domestic, Scheduled Passenger Flights (Thousands) |
| ASM_D | asm_d | asm_d | Number | Available Seat Miles (ASMs) for U.S. Air Carrier Domestic, Scheduled Passenger Flights (Thousands) |
| OBS_DATE | obs_date | obs_date | Calendar date | Observation Date ( Month and Year) |
| ID | id | id | Text | Unique row identifier |
| TSI_Passenger | tsi_passenger | tsi_passenger | Number | The Transportation Services Passenger Index is a weighted average of monthly data for passenger aviation, transit, and passenger rail. |
| VMT_D11 | vmt_d11 | vmt_d11 | Number | Seasonally-Adjusted Vehicle Miles Traveled (VMT) |
| VMT | vmt | vmt | Number | Vehicle Miles Traveled (VMT) |
| NATURAL_GAS | natural_gas | natural_gas | Number | Natural Gas Consumption (Billion Cubic Feet) |
| PETROLEUM_D11 | petroleum_d11 | petroleum_d11 | Number | Seasonally-Adjusted Pipeline Movement (Thousands Of Barrels) |
| PETROLEUM | petroleum | petroleum | Number | Pipeline Movement (Thousands Of Barrels) |
| AIR_RPM_TSI | air_rpm_tsi | air_rpm_tsi | Number | Air Revenue Passenger Miles (RPMs) (Thousands) |
| IDX_WATERBORNE_D11 | idx_waterborne_d11 | idx_waterborne_d11 | Number | |
| IDX_PETROLEUM_D11 | idx_petroleum_d11 | idx_petroleum_d11 | Number | |
| IDX_TRANSIT_D11 | idx_transit_d11 | idx_transit_d11 | Number | |
| IDX_RAIL_FRT_CARLOADS | idx_rail_frt_carloads | idx_rail_frt_carloads | Number | |
| IDX_AIR_RTMFM | idx_air_rtmfm | idx_air_rtmfm | Number | |
| IDX_AIR_RPM | idx_air_rpm | idx_air_rpm | Number | |
| IND_PRO | ind_pro | ind_pro | Number | |
| TSI_Total | tsi_total | tsi_total | Number | The Transportation Services Combined Index is a weighted average of monthly data for passenger (passenger aviation, transit, and) passenger rail and freight (trucking, freight rail, waterborne, pipeline, and air freight) transportation modes. |
| TSI_Freight_C | tsi_freight_c | tsi_freight_c | Number | The monthly change in value of the Transportation Services Freight Index. |
| TSI_Freight | tsi_freight | tsi_freight | Number | The Transportation Services Freight Index is a weighted average of monthly data for trucking, freight rail, waterborne, pipeline, and air freight. |
| WATERBORNE | waterborne | waterborne | Number | Tonnage for Internal U.S. Waterways (Millions Of Short Tons) |
| TRANSIT_D11 | transit_d11 | transit_d11 | Number | Seasonally-Adjusted Public Transit Ridership (Thousands Of Unlinked Trips) |
| TRANSIT | transit | transit | Number | Public Transit Ridership (Thousands Of Unlinked Trips) |
| RAIL_FRT_INTERMODAL_D11 | rail_frt_intermodal_d11 | rail_frt_intermodal_d11 | Number | Seasonally-Adjusted Rail Freight Intermodal Traffic |
| AIR_RTMFM | air_rtmfm | air_rtmfm | Number | Air Revenue Ton Miles Of Freight And Mail (RTMFM) (Ton Miles) |
| AIR_RPM_TSI_D11 | air_rpm_tsi_d11 | air_rpm_tsi_d11 | Number | Seasonally-Adjusted Air Revenue Passenger Miles (RPMs) (Thousands) |
| ENPLANE_D11 | enplane_d11 | enplane_d11 | Number | Seasonally-Adjusted Enplanements for U.S. Air Carrier Domestic and International, Scheduled Passenger Flights (Thousands) |
| ENPLANE | enplane | enplane | Number | Enplanements for U.S. Air Carrier Domestic and International, Scheduled Passenger Flights (Thousands) |
| ENPLANE_I_D11 | enplane_i_d11 | enplane_i_d11 | Number | Seasonally-Adjusted Enplanements for U.S. Air Carrier International, Scheduled Passenger Flights (Thousands) |
| LOAD_FACTOR_I_D11 | load_factor_i_d11 | load_factor_i_d11 | Number | Seasonally-Adjusted Load Factor for U.S. Air Carrier International, Scheduled Passenger Flights (Percent) |
| LOAD_FACTOR_I | load_factor_i | load_factor_i | Number | Load Factor for U.S. Air Carrier International, Scheduled Passenger Flights (Percent) |
| LOAD_FACTOR_D | load_factor_d | load_factor_d | Number | Load Factor for U.S. Air Carrier Domestic International, Scheduled Passenger Flights (Percent) |
| LOAD_FACTOR_D11 | load_factor_d11 | load_factor_d11 | Number | Seasonally-Adjusted Load Factor for U.S. Air Carrier Domestic and International, Scheduled Passenger Flights (Thousands) |
| RPM_D | rpm_d | rpm_d | Number | Revenue Passenger Miles (RPMs) for U.S. Air Carrier Domestic, Scheduled Passenger Flights (Thousands) |
| RPM | rpm | rpm | Number | Revenue Passenger Miles (RPMs) for U.S. Air Carrier Domestic and International, Scheduled Passenger Flights (Thousands) |
| ASM_I_D11 | asm_i_d11 | asm_i_d11 | Number | Seasonally-Adjusted Available Seat Miles (ASMs) for U.S. Air Carrier International, Scheduled Passenger Flights (Thousands) |
| ASM_I | asm_i | asm_i | Number | Available Seat Miles (ASMs) for U.S. Air Carrier International, Scheduled Passenger Flights (Thousands) |