1. Professional Traffic Operation Engineer (PTOE), Associate Professor, Dept. of Civil Engineering, Univ. of Dayton, 300 College Park Dr., Dayton, OH 45469-0243 (corresponding author).
2. Business System Analyst, 6917 McCauley Tr. S, Edina, MN 55439; formerly, Graduate Assistant, Dept. of Civil Engineering, Univ. of Dayton, 300 College Park Dr., Dayton, OH 45469-0243.
3. Associate Professor, Dept. of Mathematics, Univ. of Dayton, 300 College Park Dr., Dayton, OH 45469-2316.