Figure 3-10 Amtrak On-Time Performance: FY2000–FY2015

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NOTES: On-time performance is a percentage measure of train performance. A train is considered on-time if it arrives at the final destination, or end-point, within an allowed number of minutes, or tolerance, of its scheduled arrival time....

Figure 3-9 Stations Compliant with the Americans with Disability Act: 2000–2014

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NOTE: Transit bus data for years before 2006 are omitted because they are not comparable to later years due to a change in the number of reported stations. Transit bus includes local motor bus, commuter bus, and bus rapid transit. Light...

Figure 3-8 Large and Medium Airports by Enplanements and Overall Delay: 2015

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Large airports

Medium airports

NOTES: Airports are categorized based on their share of total enplaned passengers: Large–1% or more; Medium–0.25%-0.99%.

SOURCE: U.S....

Figure 3-7 National Flight Delays by Cause: 2004–2015

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SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, On-Time Performance Data, available at www.transtats.bts.gov as of March 2016.

Figure 3-6 Delayed Flights by Length of Time Delayed: 2015

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NOTES: Delays are based on data submitted by reporting carriers, which varies by year. For the monthly number of carriers reporting, please refer to the Air Travel Consumer Reports available at http://airconsumer.dot.gov/reports/index.htm....

Figure 3-5 Percentage of Flights Delayed and Average Length of Delay: 2004–2015

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NOTES: Delays are based on data submitted by reporting carriers, which varies by year. For the monthly number of carriers reporting, please refer to the Air Travel Consumer Reports available at http://airconsumer.dot.gov/reports/index.htm. A...

Figure 3-4 U.S. Airline Revenue Passenger-Miles, Available Seat-Miles, and Load Factor: January 2003–December 2015

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NOTES: Includes domestic and international scheduled services. Revenue passenger-miles (RPM) are a measure of the volume of air passenger transportation. An RPM is equal to one paying passenger carried one mile. Available seat-miles (ASM)...

Figure 3-3 Highway Reliability as Measured by the Planning Time Index: January 2013–December 2014

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NOTES: The Planning Time Index (PTI) is the ratio of travel time on the worst day of the month (the 95th percentile travel time) compared to the time required to make the same trip at free-flow speeds. A PTI of 1.60 indicates a 20-minute...

Figure 3-2 Peak-Period Congestion on the National Highway System: 2011

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NOTES: Highly congested segments are stop-and-go conditions with volume/service flow ratios greater than 0.95. Congested segment have reduced traffic speeds with volume/service flow ratios between 0.75 and 0.95. The volume/service flow ratio is estimated...

Figure 3-1 Passenger Vehicle Traffic on the National Highway System: 2011

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SOURCE: U.S. Department of Transportation, Federal Highway Administration, Highway Performance Monitoring System and Freight Analysis Framework, version 3.4, 2013.