Our presenters

 Colin Leek commenced his career in Local Government and become interested in pavements in the early 1980s. During his long association with City of Canning, he introduced Insitu Foamed Bitumen Stabilisation into WA, and the use of recycled crushed concrete as a base material. During this time, he studied for a Master degree in Pavement Technology with Deakin University and undertook much research into pavement stabilisation.  Due to his demonstrated interest in research, he was approached to join ARRB in 2008 in pavements research, and in 2010 moved to Curtin University where he undertook lecturing and high-level research into various road pavement activities including the use of plastics in asphalt and the fatigue properties of foamed bitumen as well as supervising PhD students. He now works as a consultant and continues his commitment to the pavement profession by lecturing at UWA and proposing and supervising research projects for final year Engineering projects and PhD level students.

Geoff is the Principal of an independent Tasmanian based consultancy providing technical services in Pavement Technology, Infrastructure Asset Management and Maintenance Management. The Company also delivers training in Pavement Management Systems, Road Condition Assessment, and Asset Management & Maintenance Management Systems.

Prior to establishing the consultancy in 1996, Geoff was the Technical and Quality Manager for Roadways Pty Ltd, (1986-1996), and has over twenty years’ experience in the civil construction industry, specialising in pavements and surfacing , having held various technical positions in the resources and construction industry sector. Between 1998 and 2008 GR Webb Consulting was commissioned as Maintenance Auditor for the Maintenance Contractor for the Tasmanian Long Term Performance Based Road Maintenance Contract for the Tasmanian State Government. The company was also engaged as Consultant Pavement Engineer providing network analysis, pavement investigation and treatment selection and design services.

Geoff is a member of the Road Engineering Association of Asia and Australasia, REAA. He is a member of the Institute of Public Works Engineering Australia, IPWEA, and is a Consultant Supporter of the IPWEA National Asset Management Strategy (NAMS.AU) committee. He is an ARRB Associate with ARRB Group Ltd serving in Tasmania and is a member of the Australian Asphalt Pavement Association, AAPA. Geoff has contributed to Standards Australia committees, and has held NATA signatory positions.

Kym is supported by over 20 years of on-site sprayed sealing and road maintenance field experience in State Road Agency, followed by 20 years of national-level research experience, international consultancy experience, and teaching at postgrad level. Supplementing his strong practical and extensive field experience, he has also completed the only PhD in Australia in the field of sprayed sealing / chip seals.

He has held senior roles for over 25 years in editorial and strategic committees for Austroads and is past Chairman of the Australian Standards committee for bitumen and related products.

He is a steering committee member on university led research groups in the UK and Australia.

Expert services that he provides include: challenging commissions in the field of bituminous road surfacings; peer review of seal designs; forensic and failure investigations; expert opinion in bituminous surfacings prior to mediation and expert reports as evidence in court proceedings.

 Leigh developed CIRCLY, the Windows-based package that can analyse a range of load types acting on layered elastic systems. CIRCLY was first released in 1977 and was commercialised by MINCAD Systems in 1988. The first Windows version appeared in 1996. CIRCLY is an integral part of the Austroads Pavement Design Guide used by authorities throughout Australia and New Zealand. Leigh joined CSIRO Division of Geomechanics in 1970 after qualifying in Applied Mathematics & Physics from Monash University. Over the 18 years of his career with CSIRO he worked on numerical stress analysis techniques.

In 1988, Leigh formed Mincad Systems, a company specialising in numerical stress analysis for the civil and mining industries and since 1993 has specialised in pavement applications. In 2018, version 7.0 of Circly was released.

In 1995, a special version of CIRCLY was released for airport pavement design (APSDS- Airport Pavement Structural Design System) in conjunction with Pioneer Road Services and the Federal Airports Corporation. In 2005 Leigh released HIPAVE (Heavy Industrial Pavement) for Heavy Industrial Pavements such as intermodal container terminal pavements. Leigh is also co-author of the recently released Heavy Duty Industrial Pavement Design Guide – a guide that reflects best practice in the design of new construction and rehabilitation of industrial pavements.

Paul has a Master’s Degree in International Highway Engineering and an international career in road pavements technology, maintenance management, highway network planning, design, sealed and unsealed pavements and road construction, maintenance and training.  As a Principal Research and Consulting Engineer with ARRB, he undertook research, developed Austroads guidelines and presented training in Unsealed Roads Maintenance, Pavement Rehabilitation, Pavement Condition Management, Road Maintenance Management and Project Delivery. He was a contributory author to the ARRB Sealed and Unsealed Roads Manuals.  He also has international experience in road engineering and network maintenance management, notably in developing countries of the Asia Pacific region.

Peter’s professional background is in land surveying having spent 20 years in private practice, including many years designing engineering infrastructure including roads.  Among a number of qualifications, he holds a Bachelor of Surveying Degree from the University of Queensland, a Master of Geomatics Degree and a Doctor of Education Degree from the Queensland University of Technology.  Peter is currently an Associate Professor at USQ in the Faculty of Health, Engineering and Sciences.

Roger has some 30 years industry and academic experience, with over 20 years in the field of mine haul road design, operation and management. He has undertaken numerous research and consulting assignments, centred on surface mining transportation and the provision, rehabilitation or improved design and management of mine haul roads for many of the world’s leading surface mining operations. He is also the lead-author of the definitive treatise on the subject - 'Mining Haul Roads - Theory and Practice' (Taylor & Francis, 2019), and co-author of numerous other publications in the field of mine haul road design.  He has presented at Australian, ARRB, mine-site and International workshops in mine road design, construction and management.

In his career with VicRoads Ross worked in several Regions and Project Teams in various positions responsible for planning, design, construction and maintenance of roads. In 1988 he was appointed Surfacing Engineer followed in 1993 by the role of Manager - Pavement Services being responsible for leading a team for undertaking pavement investigation, design and related research and development projects. From 1998 to 2013, he was Technology Transfer Engineer responsible for implementation of new technologies and research outcomes, development and review of technical specifications, and guideline documents including provision of technical advice on most aspects of pavement technology.

 Scott Young, Technical Manager, SPA

Scott Young is a Registered Professional Civil Engineer with Honours from the University of Newcastle NSW and a Master of Pavement Technology from CPEE. He is currently the Technical Manager with Stabilised Pavements of Australia (SPA), and the Managing Director for the group’s Malaysian operations (Stabilised Pavements Malaysia). Scott is a member of Professionals Australia and REAAA and holds current RPEQ registration. Scott has been heavily involved in the stabilisation industry for almost 20 years and during that time held positions of Director, Vice President and President in Australia’s national association AustStab, which provides research, development, education and advice to the pavement recycling industry.

His experience covers civil and geotechnical engineering, predominantly in pavements with areas of responsibility including asset management, structural and mix design, performance specified maintenance contracts, asphalt production and laying, spray sealing, pavement rejuvenation and pavement recycling. Scott has delivered numerous presentations at conferences and industry seminars on a variety of pavement stabilisation topics.

 Tony is a physicist who has been working in the field of photometry in the lighting sector for over 25 years.  He manages the NATA-accredited Australian Photometry and Radiometry Laboratory, and is also Technical Director of Photometric Solutions International, an Australian company which designs and manufactures testing and measurement equipment for the lighting industry.

Tony is Vice-President Technical of the International Commission on Illumination (CIE).  He has co-authored over 20 CIE publications and contributed many published papers and magazine articles, and in 2023 he was presented with the De Boer Gold Pin Distinguished Services Award, the highest honour awarded by the CIE.  Tony also serves as President of the Metrology Society of Australasia and serves on three Standards Australia committees.