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Despite the news that traffic congestion wasted nearly 2.9 billion gallons of fuel in 2011, fuel savings were achieved due to efforts to combat congestion. According to the Texas Transportation Institute, public transportation was responsible for a savings of 450 million gallons of fuel in 2011. High-occupancy vehicle lanes, combined with other operational treatments, contributed another 194 million gallons to fuel savings. Operational treatments include the coordination of traffic signals, freeway ramp metering, freeway incident management, and arterial street access management.

Fuel Saved Due to Methods of Alleviating Congestion
Graph showing fuel saved due to methods of alleviating congestion from 1982 20 2011. The two methods were operational treatments and high-occupancy vehicle lanes and public transportation. See table below for more detailed information.

Supporting Information

Fuel Saved Due to Methods of Alleviating Congestion
Year Operational Treatments and
High-Occupancy Vehicle Lanes
Public Transportation
1982 1 204
1983 4 208
1984 7 219
1985 9 235
1986 12 229
1987 16 236
1988 21 289
1989 25 314
1990 29 317
1991 31 317
1992 35 310
1993 40 305
1994 44 318
1995 51 340
1996 59 354
1997 67 365
1998 76 392
1999 87 418
2000 116 431
2001 131 450
2002 148 461
2003 169 456
2004 186 486
2005 198 493
2006 220 519
2007 223 546
2008 185 478
2009 188 459
2010 192 445
2011 194 450
Note: Operational treatments include Freeway incident management, freeway ramp metering, arterial street signal coordination, arterial street access management.
Public Transportation—Regular route service from all public transportation providers in an urban area.
Texas Transportation Institute, 2012 Urban Mobility Report, December 2012.

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