On Thursday, the state highway chiefs approved $77 million in so-called transportation enhancement projects for the next year. Enhancement projects are funded by the federal government, which sets aside 10 percent of federal gas tax dollars for the program. The local government requesting the money must pay for the project up front, and the state -- using federal money -- reimburses 80 percent of the cost. The program has been criticized -- see stories here and here -- but often provides money for projects that stoke the biggest enthusiasm from nearby residents. An example in Dallas has been the Woodall...