Figure 3: "Smoothed" Airline RPM Data Showing Two Distinct Declines: September to November 2001 and December 2002 to April 2003

Revenue passenger-miles (millions)

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Table 1: RPMs by Carrier Region, December 2002 to April 2003

(in millions)

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Figure 2: Aviation Revenue Passenger-Miles, Seasonal Influences Removed, 1994-2006

Revenue passenger-miles (millions)

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BTS Technical Report: Uncovering Trends in Seasonal Transportation Data

May 2008 TR-003

Figure 5: Monthly Variation in Chicago's Weekday and Weekend Congested Hours due to Seasonal Factors

Difference in congested hours per day from the trendline

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Figure 1: Number of Congested Hours per Weekday: Monthly Average

Hours per day

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BTS Technical Report: Seasonal Variation in Traffic Congestion: A Study of Three U.S. Cities

by Jeffery Memmott, Ph.D. and Peg Young, Ph.D.

PDF

Most urban areas of the country face rising congestion levels as increasing volumes of vehicular traffic exceed the capacity of the transportation...

Figure 6: Monthly Variation in Los Angeles' a.m. and p.m. Congested Hours due to Seasonal Factors

Difference in congested hours per day from the trendline

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Figure 2: Monthly Average of Congested Hours per Weekday in Los Angeles

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SOURCE: Calculated from data used in preparation of Federal Highway Administration, Urban Congestion Report, April 2004-April 2007.

Figure 6: Monthly Variation in Los Angeles' a.m. and p.m. Congested Hours due to Seasonal Factors

Excel | CSV | Table Version

SOURCE: Calculated from data used in preparation of Federal Highway Administration, Urban Congestion Report, April 2004 -...