Dr Richard Robinson is an independent consultant and has an honorary appointment at the University of Birmingham in the United Kingdom. He spent over 20 years at the Transport Research Laboratory, and recently held the Senior Roads Specialist position at the European Bank for Reconstruction and Development. He has worked in 40 countries and has published over 100 papers and articles.
Professor Bent Thagesen is the former Professor of Highway Engineering at the Technical University of Denmark. He has worked as a highway engineer in Africa and in Asia, and has carried out research at the Danish Road Research Laboratory. He has been a consultant to the World Bank, the United Nations and various development organizations and firms concerned with roads in the developing world. He edited the first edition of this book, Highway and Traffic Engineering in Developing Countries.