Washington ? The nation’s public transportation systems saw the largest quarterly ridership increase in 25 years as more Americans shunned their automobiles even as gas prices began to ease, according to industry figures to be released today.

Subways, buses, commuter rail and light-rail systems saw a 6.5 percent jump in ridership from July to September, according to the Washington-based American Public Transportation Association. During the same quarter, Americans drove 4.6 percent less on the nation’s highways.

“They may have tried public transportation to get away from high gas prices, but many have since found it works for them,” association President William W. Millar said. “I think this year has been a real turning point for the public’s attitude toward public transportation.”