1. Assistant Professor, Dept. of Civil and Environmental Engineering, Michigan Technological Univ., 1400 Townsend Dr., Houghton, MI 49931 (corresponding author).
2. Industrial Engineer, IET Inc., 3539 Glendale Ave., Toledo, OH 43614.
3. Civil Engineer, GRL Engineers, Inc., 30725 Aurora Rd., Cleveland, OH 44139.
4. Associate Professor, Dept. of Civil Engineering, Case School of Engineering, Case Western Reserve Univ., 10900 Euclid Ave., Cleveland, OH 44106.