DALLAS — Governors and state lawmakers searching for ways to reinvigorate their transportation funding in 2015 are focusing on the gasoline tax, with a flurry of new highway revenue proposals aimed at increasing collections from the long-time main source of highway spending.

"Gasoline tax hikes are one of the biggest trends we're seeing this year," said Carl Davis, a senior analyst at the Institute of Taxation and Economic Policy. "That's not surprising because revenues are falling short, and states are trying to catch up."

Subscribe Now

Independent and authoritative analysis and perspective for the bond buying industry.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.