1. Roadway Safety Program, Texas A&M Transportation Institute, Bryan, TX, USA
2. Department of Civil and Environmental Engineering, Cleveland State University, Cleveland, OH, USA
3. Department of Civil and Environmental Engineering, Florida International University, Miami, FL, USA
4. Department of Civil Engineering, Ardhi University, Dar es SalaamTanzania
5. Department of Sociology, University of Nevada, Las Vegas, NV, USA