1. Senior Consulting Engineer, Simpson Gumpertz & Heger, 1625 Eye St., Suite 900, Washington, DC 20006; Associate Research Scientist, Dept. of Civil and System Engineering, Johns Hopkins Univ., 3400 Charles St., Baltimore, MD 21218; formerly, Senior Engineer, NBM Technologies Inc., Blacksburg, VA 24060 (corresponding author). ORCID: .
2. Willard and Lillian Hackerman Professor of Civil Engineering, Dept. of Civil and System Engineering, Johns Hopkins Univ., 3400 Charles St., Baltimore, MD 21218; Consulting Principal, Simpson Gumpertz & Heger, 1625 Eye St., Suite 900, Washington, DC 20006; formerly, Vice President and Principal, NBM Technologies Inc., Blacksburg, VA 24060.