A big rig driver barely escaped death before dawn today when he blew a tire and his truck crashed and burned in northwest Dallas. Just before 4 a.m. a tractor-trailer hauling a load of paper cups crashed on the LBJ Freeway service road at Josey Lane. Even though the truck exploded in flames, the driver was able to scramble free from the wreckage. He’s been taken to a Dallas hopital but police think he’ll survive. The flames and smoke, along with all the emergency crews, have led to a traffic back-up on LBJ.