The availability of the service provided by TransMilenio also depends on its costs for the passengers, that is, on its fares.
Last week, the Metropolitan Transportation Authority in New York announced that it would be selling advertising space on the front of its fare cards to raise revenue.
Bus firm First has announced it is to hold a consultation on the price of its fares and whether they represent value for money in the Greater Bristol area.
The airline also failed to disclose the cost of federal security fees and it did not disclose fees or taxes separately from the price of its fares on its Web site.
According to Barney Harford, Expedia's vice president for air, car and private label, the company is working on a new version of air fare search technology, with part of the upgrade focused on its international fare searches.
On Nov. 18, it simplified its fare structure -- going from 18 different fares between LaGuardia and Miami down to 8, for example -- eliminated some restrictions and cut fares on a limited number of seats.
At the same time, Northwest cut leisure fares by 25percentt and said it would offer corporate discounts on its BizFlex fares, coach class tickets aimed at business travelers, that cost half the full coach fare and do not require a Saturday night stay.
Meanwhile, American told analysts it would eliminate corporate discounts on its lowest fares, matching a move in 2001 by Northwest Airlines, saving American $80 million a year.
Passengers who know they might not make their ticketed flight could very well shun US Airways or AirTran Airways, which has always had a similar no-credit policy on its low fares.
But Gray Line, which serves airports in New York, has not, although Lee Gelber, a spokesman, said that the fare for the day trip to the Woodbury Common mall had increased by $1. On Feb. 2, Olympia Bus Service raised its fare from the Port Authority Bus Terminal in midtown Manhattan to Newark Airport from $10 to $11, but created a round-trip fare of $20.
