Bureau of Transportation Statistics (BTS)
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Appendix A: List of Acronyms

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

A

AAR Association of American Railroads

ADA Americans with Disabilities Act

APTA American Public Transportation Association

ATPI Air Travel Price Index

ATTI Air Travel Time Index

ATTVI Air Travel Time Variability Index

B

BEA  Bureau of Economic Analysis

BLS  Bureau of Labor Statistics

BTS  Bureau of Transportation Statistics

Btu British thermal unit

C

CBP  U.S. Customs and Border Protection

CFS  Commodity Flow Survey

CO carbon monoxide

CO2  carbon dioxide

CPI Consumer Price Index

CPSC Consumer Product Safety Commission

D

DHS U.S. Department of Homeland Security

DOC U.S. Department of Commerce

DOE U.S. Department of Energy

DOL U.S. Department of Labor

DOT U.S. Department of Transportation

dwt deadweight tons

E

EIA Energy Information Administration

EPA  U.S. Environmental Protection Agency

F

FAA  Federal Aviation Administration

FHWA Federal Highway Administration

FMCSA Federal Motor Carrier Safety Administration

FRA  Federal Railroad Administration

FTA  Federal Transit Administration

FY  fiscal year

G

GDP Gross Domestic Product

GHG greenhouse gas

GIS geographic information systems

GVWR gross vehicle weight rating

H

HMIS Hazardous Materials Information System

I

ISTEA Intermodal Surface Transportation Efficiency Act

ITS intelligent transportation system

M

MARAD   Maritime Administration

MFP multifactor productivity

MISLE Marine Information and Safety Law Enforcement

mmtc million metric tons of carbon

mpg  miles per gallon

mph  miles per hour

MPO metropolitan planning organization

MSA metropolitan statistical area

N

NAICS North American Industry Classification System

NEI  National Emissions Inventory

NEISS National Electronic Injury Surveillance System

NHTS National Household Travel Survey

NHTSA   National Highway Traffic Safety Administration

NOX nitrogen oxides

NPIAS National Plan of Integrated Airport Systems

NTAD National Transportation Atlas Database

NTD National Transit Database

NTS National Transportation Statistics report

NTSB National Transportation Safety Board

O

O&D origin and destination

OECD Organization for Economic Cooperation and Development

OOS out of service

OPEC Organization of Petroleum Exporting Countries

P

PM-2.5 particulate matter of 2.5 microns in diameter or smaller

PM-10 particulate matter of 10 microns in diameter or smaller

pmt passenger-miles of travel

quads quadrillion

R

RITA Research and Innovative Technology Administration

rpm  revenue passenger-mile

S

SAFETEA-LU   Safe, Accountable, Flexible, Efficient Transportation Equity Act—A Legacy for Users

SCTG Standard Classification of Transported Goods

SE  standard error

SIC Standard Industrial Classification

STOL short take-off and landing

SUV  sport utility vehicle

T

TEA-21 Transportation Equity Act for the 21st Century

TEU 20-foot equivalent container unit

TgCO2Eq teragrams of carbon dioxide equivalent

TSAR Transportation Statistics Annual Report

TSI Transportation Services Index

TTI Texas Transportation Institute

TTI Travel Time Index

U

USCG U.S. Coast Guard

V

VIUS Vehicle Inventory and Use Survey

vmt vehicle-miles of travel

VOC volatile organic compounds