Research reveals three-quarters of UK drivers still use the car to commute but the number has dropped from 86% last year and 92% in 2004.
One in 10 now use trains - in 2004 it was 2%. Bus use is up from 0.2% to 1%. And 16% said they would walk or cycle if possible.
However, 86% of those quizzed for the 10th annual Barclaycard Business Travel survey said if it wasn't for rising costs and congestion, they would still drive.
Tim Carlier, of Barclaycard, said: "Whether the reduction in car travel is over concern for the environment, or a reaction to increased fuel prices and congestion charging, it is encouraging."