As Americans drove less, federal gas taxes and other revenue flowing into the Highway Trust Fund fell by $3 billion in fiscal year 2008, compared with the sum collected the year before, the Dept. of Transportation reported.

DOT said on Nov. 19 that the trust fund took in $31 billion in fiscal 2008, down 8.8% from the $34 billion collected in the previous year. As income dropped, 2008 spending from the trust fund on highway and transit projects rose by $2 billion, compared with 2007's level.