1. Visiting Assistant Professor, School of Civil Engineering, Research Program Manager, Center for Road Safety, 550 Stadium Mall Dr., Purdue Univ., West Lafayette, IN 47907-2051 (corresponding author).
2. Graduate Research Assistant, Dept. of Civil Engineering, Univ. of Texas at El Paso, 500 West University Ave., El Paso, TX 79968; formerly, School of Civil Engineering, 550 Stadium Mall Dr., Purdue Univ., West Lafayette, IN 47907-2051.
3. Postdoctoral Research Associate, Zografou Campus, 9 Iroon Polytechniou, National Technical Univ. of Athens, Athens 15773, Greece.
4. Associate Professor of Civil Engineering, Zografou Campus, 9 Heroon Polytechniou, National Technical Univ. of Athens, Athens 15780, Greece.