Airline On-Time Tables - April 2018

Pocket Guide to Transportation

The BTS Pocket Guide to Transportation is a popular, quick reference guide that provides transportation statistics at your fingertips. It provides key information and highlights major trends on the U.S. transportation system. 

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ADA-Accessible Rail Transit Stations by Agency

KEY:  ADA = Americans with Disabilities Act of 1992; N = data do not exist; NA = not applicable.

U.S. Passenger-Kilometers

KEY: N = data do not exist; R = revised; U = data are not available.

^a Data from 2007 were calculated using a new methodology developed by FHWA. Data for these years are based on new categories and are not comparable to previous years. The new category Light duty vehicle, short wheel base replaces the old category Passenger car and includes passenger cars, light trucks, vans and sport utility vehicles with a wheelbase (WB) equal to or less than 121 inches. The new category Light duty vehicle, long wheel base replaces Other 2-axle, 4-...

Number of Pilot-Reported Near Midair Collisions (NMAC) by Degree of Hazard

KEY: R = revised, U = data are not available.

^a A situation where collision avoidance was due to chance, rather than an act on the part of the pilot.  Less than 100 feet of aircraft separation would be considered critical.

^b An incident that would probably have resulted in a collision if no action had been taken by either pilot.  Less than 500 feet would usually be required in this case.

^c When direction and altitude would have made a midair collision improbable regardless of evasive action taken.

^d No...

Reporting Thresholds for Property Damage by U.S. Department of Transportation Modal Administrations

Kilometers of Public Roads and Streets in the United States by Type of Surface

KEY:  N = data does not exist.

^a 1960-95 data includes the 50 states and the District of Columbia; 1996-2008 data includes the 50 states, District of Columbia, and Puerto Rico; 2011-16 data includes the 50 states and the District of Columbia; 2017-18 data includes the 50 states, Puerto Rico (data may be incomplete), and the District of Columbia.

^b  Paved mileage includes the following categories: low type (an earth, gravel, or stone roadway that has a bituminous surface course less than 1" thick); intermediate type (a mixed...

Hazardous Materials Fatalities, Injuries, Accidents, and Property Damage Data

KEY: R = revised. 

^a The 1996 spike in Air Fatalities was due to the ignition of an undeclared cache of chemical oxygen generators in a flight over Florida that killed 110 people, according to the U.S. Department of Transportation Biennial Report on Hazardous Materials Transportation, 1996-1997. 

^bWater category includes only nonbulk marine. Bulk marine hazardous materials incidents are reported to the U.S. Coast Guard and are not included.

^cOther category includes freight...

Highway Noise Barrier Construction

KEY: R = revised.

^a  A Type I barrier is built on a new highway project or a physically altered existing highway.

^b  A Type II barrier is built to abate noise along an existing highway (often referred to as retrofit abatement) and is not mandatory.

^c All other types of barriers are nonfederally funded.

^d Have not been assigned a year of construction or a cost.

Amtrak On-Time Performance Trends and Hours of Delay by Cause

KEY:  N = data do not exist.

^a Routes outside the Northeast Corridor and under 750 miles in length.

^b Routes over 750 miles in length.

^c Amtrak changed its method for reporting delays in 2000.  Therefore, the data for 2000 and following years are not comparable with prior years.

^d Includes all delays that occur when operating on Amtrak owned tracks and all delays for equipment or engine failure, passenger handling, holding for connections, train servicing, and mail/baggage handling when...