Dr Rahmi Akçelik is a leading scientist and software developer with 50 years of practical, research, development and training experience in the area of road traffic operations, traffic engineering, management and control. He is Director of Akcelik and Associates Pty Ltd (trading as SIDRA SOLUTIONS), a company based in Melbourne, Australia. He has over 350 technical publications in his area of expertise. He is the author of the SIDRA INTERSECTION and SIDRA TRIP software packages. Rahmi served as member of various US Transportation Research Board Committees.

Awards received by Rahmi include the 2014 Roads Australia Award for Technical Excellence in recognition of the exceptional achievement of an individual in a technical or scientific area relevant to transport, the 2008 ITE ANZ Contribution to the Transportation Profession Award, the 1999 Clunies Ross National Science and Technology Award for outstanding contribution to the application of science and technology, and the 1986 ITE US Transportation Energy Conservation Award.

Mark Besley is a scientist and software specialist who has worked in the traffic management area since 1980s. He has been making a significant contribution to the development of the SIDRA INTERSECTION software in collaboration with Dr Rahmi Akçelik during the last 30+ years. He has trained several thousand professionals in over 300 workshops, courses and seminars.

Mark has been involved in many aspects of research on traffic operations including traffic network models, incident detection, fuel consumption estimation, traffic data collection and analysis.

Dr Ian Espada is a Senior Traffic Modeller / Analyst at SIDRA SOLUTIONS. He has more than 20 years of work experience in the role of researcher, transport/traffic planner, transport survey specialist, transport demand modeller, and transport economist. He had an 11-year career at the Australian Road Research Board where he was the team leader of the Network Operations Team under the Future Transport Systems Working Group. Ian worked for 7 years as a transport planner / modeller for ALMEC Corporation, Japan. He was also a sessional lecturer on transport demand modelling at Swinburne University for 10 years.

Ian has a Ph.D. degree in transportation engineering and planning from the University of Tokyo and an M.Eng. degree in transportation planning and traffic engineering from the Asian Institute of Technology, Thailand. Ian was the Australian representative to the World Road Association technical committee on road network operations from 2016 to 2019.