MasterCard has conducted a survey of over 1,600 Americansabout how paying for transit affected their daily commutes.  Overall the survey found that people find itstressful to pay for transit fares with cash. 65% of commuters who use cash to pay their transit fares worried thatthey did not have enough money to pay for their fare, 44% worry about needingcorrect change, and 36% have been unable to ride mass transit because they didnot have enough money for the fare.