The Republicans said the state should spend at least $1 billion each year for the next three decades and should reinstitute the Transportation Strategy Board to help pick projects to be funded.
The proposal would be the largest in state history and comes one week before Democratic Gov. Dannel P. Malloy is expected to unveil a comprehensive, long-term plan that covers roads, bridges, and railroads.
The Republican proposal does not include a constitutional amendment for a "lock box'' that would insure that all money raised for transportation would be spent on transit - and not diverted as has been done in recent years by both Republican and Democratic governors.
Malloy has not revealed all the details of his comprehensive plan, but he proposed the "lock box" in his State of the State address and has talked about a "five-year ramp up'' followed by 25 years of spending on a wide variety of projects that include widening Interstate 95 from Greenwich to Stonington.