1. Department of Civil and Mineral Engineering, University of Toronto, 35 St. George St., Toronto, ON M5S 1A4, Canada, http://orcid.org/0000-0001-9971-2398 (J.S.)
2. Interlocking Concrete Pavement Institute, 14801 Murdock St., Chantilly, VA 20151, USA, http://orcid.org/0000-0002-0605-9228
3. Department of Civil and Mineral Engineering, University of Toronto, 35 St. George St., Toronto, ON M5S 1A4, Canada (Corresponding author), e-mail: jenn.drake@utoronto.ca