The regional transportation sales-tax referendum failed two years ago across most of Georgia. So it’s encouraging to see movement again, in the form of a joint study committee on transportation funding that met Aug. 5 for the first of seven meetings around the state before the legislative session.Testifying at the first meeting were Keith Golden, commissioner of the Georgia Department of Transportation; Ray LaHood, former secretary of transportation; and Michael Sullivan, chairman of the Georgia Transportation Alliance, which is an advocacy arm of the Georgia Chamber of Commerce.The Georgia Public Policy Foundation long has maintained that transportation policy needs to be about congestion relief and improving mobility. Get freight and travelers from point A to point B as quickly, efficiently and cost-effectively as possible.It may surprise Georgia’s commuters to hear that Sullivan, who also is chairman of the American Council of Engineering Companies told the committee, “This is not about transportation infrastructure.