These problems are only proliferating as air cargo, driven by e-commerce and global outsourcing, grows at 6.4% a year, twice the rate of passenger travel.
The limit is twice the highest federal per diem rate allowable at the time of your travel.
The rate of growth of fractional ownership has slowed globally of late, along with premium travel on scheduled services, but NetJets has doubled its sales in Europe in the past year, and hopes without Concorde to double sales again this year.
Since World War II, air travel has grown at roughly twice the rate of economic growth.
The same research shows that Asian nations overall will increase their business travel spending at about four times the rate of the US through 2015.
Jeff Clarke, chief executive and president of global travel firm Travelport, called the rate cut a "quite decisive move", which "clearly has stemmed the fall" on stock markets around the world.
Today's data reveal that real spending on travel and tourism increased at an annual rate of 2.1 percent in the second quarter of 2012 after increasing 4.9 percent (revised) in the first quarter of 2012, supporting 7.6 million jobs.
Some excesses have been abolished, such as flat-rate travel expenses often worth five times the actual cost of an air ticket.
"Before the events of the last week, the emerging military advice, based on our assessment of current conditions, was that further reductions might not be possible at the rate envisaged in the October announcement -- although it remains our clear direction of travel, " Browne said.
The rate of workers commuting by bicycle doubled between 2001 and 2009, according to National Household Travel Survey data.
Did it mean a significant decrease in air travel, a certain number of LEED certifications, an internally set women and minority retention rate, or something else?
Expedia.com reports small increases in round-trip flights for June, July and August travel, domestic and international trips combined, but the increase is at a much slower rate than jumps of about 10% the previous two summers.
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