Ángel Corberán is a Professor of Statistics and Operations Research at the Faculty of Mathematics of the University of Valencia. He started studying arc routing problems 35 years ago under the supervision of Professor Nicos Christofides of the Imperial College. He has published more than 60 papers in combinatorial optimization and is coordinating editor of Computational Optimization and Applications and a member of the editorial board of Computers and Operations Research, the EURO Journal on Transportation and Logistics, and the EURO Journal on Computational Optimization. His research interests concern the study and solution of combinatorial optimization problems, mainly in the routing and location areas. Gilbert Laporte is Professor of Operations Research at HEC Montréal and holds the Canada Research Chair in Distribution Management. He has been editor of Transportation Science, Computers and Operations Research, and INFOR. He has authored or coauthored fifteen books and more than 450 scientific articles in combinatorial optimization, mostly in the areas of vehicle routing, location, and timetabling. He has received many scientific awards, including the Pergamon Prize in 1987, the 1994 Merit Award of the Canadian Operational Research Society, and the CORS Practice Prize on three occasions. He has been a member of the Royal Society of Canada since 1998 and a Fellow of INFORMS since 2005. In 2009, he received the Robert M. Herman Lifetime Achievement Award in Transportation Science from the Transportation Science and Logistics Society of INFORMS. In 2014, he obtained the Lifetime Achievement in Location Analysis Award from the Section on Location Analysis of INFORMS.