Funding the state’s transportation program is a major issue on the agenda of this year’s legislative session. Since 2000, miles traveled on Vermont’s roads have increased by 13 percent, but annual gasoline and diesel fuel tax revenues are the same today as they were 12 years ago. As Vermonters have replaced gas-guzzlers with more fuel efficient vehicles, the new vehicles use less fuel per mile. Thus, gas and diesel taxes, which are the principal sources of revenue for the state’s Transportation Fund, are not keeping up with the wear and tear on the roads.