"Texas Department of Transportation" . . "TxDOT" . "DOT" . . . . "Texas Highway Commission" . . . "Texas" . "Department of Transportation" . . . . . "Highway Commissioner" . . . "State Highway Commission" . . . . . "1991" . . . . . . . . . . . . "Texas DOT" . "transportation" . "Texas Department of Transportation\u2019s" . . . . "Texas Turnpike Authority" . . . "Texas Transportation Commission" . "Texas Department of Transportation (TxDOT)" . "TXDOT" . . "Texas State Department of Highways and Public Transportation" . . . "TxDOT's" . "Texas Department of Transportation" . "Texas Highway Department" . "Texas State Highway Department" . . . "state" . "Texas Highway & Public Transportation Commission" .