Distinguished Professor of Engineering, University of California-Davis

Transportation Engineering, The University of Cincinnati

Professor of Engineering, Charles Sturt University

Professor of Civil Engineering, Universidad de Costa Rica

Director of Statistical Services, Insurance Institute for Highway Safety

Assistant Professor, University of Wisconsin-Madison

Universitas Gadjah Mada

Embry-Riddle Aeronautical University

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

Assistant Professor, University of Mississippi