J. Y. Wong is Professor Emeritus, Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, Canada. He received his PhD and DSc from the University of Newcastle upon Tyne, England. He is also the author of Terramechanics and Off-Road Vehicle Engineering. An internationally recognized leading expert in ground vehicle mobility, he is on the editorial/advisory boards of a number of international journals. He has received numerous awards from learned societies for his research accomplishments.