Distinguished Professor of Engineering, University of California-Davis

Professor of Engineering, Charles Sturt University

Transportation Engineering, The University of Cincinnati

Professor of Civil Engineering, Universidad de Costa Rica

Director of Statistical Services, Insurance Institute for Highway Safety

Universitas Gadjah Mada

Senior Research Associate, Center for Multidisciplinary Research in Transportation, Texas …

Professor of Highway and Traffic Engineering, Assiut University; Sphinx University

Toxcel LLC

The University of Texas at Austin