1. School of Computing, Clemson University, Clemson, SC, USA
2. Department of Civil Engineering, Northern Arizona University, Flagstaff, AZ, USA
3. Department of Computer Science, The University of Arizona, Tucson, AZ, USA
4. Arizona Department of Transportation, Phoenix, AZ, USA
5. Exponent Company, Phoenix, AZ, USA
6. Department of Systems and Industrial Engineering, The University of Arizona, Tucson, AZ, USA