Dave Tilton

Dave Tilton is a Director at Parallaxx, a New Zealand consultancy specialising in work zone safety, temporary traffic management, risk management, and organisational capability. He founded Parallaxx in 2012 and has more than 16 years' experience spanning policy, design, assurance, training, governance, and safety reform across the transport sector.

Dave is currently completing a PhD in Civil Engineering at the University of Canterbury, where his research examines residual risk in road work environments and the practical application of risk-based regulation. He was the inaugural Chair of New Zealand's Temporary Traffic Management Industry Steering Group, co-designed the national TTM Credentials Framework, contributed to the NZ Guide to Temporary Traffic Management, and led PIARC (the World Road Association)'s international special project on global work zone safety management.

His work has helped shape New Zealand's transition from prescriptive compliance to risk-based decision-making and has influenced international work zone safety practice through research, standards development, training systems, and industry guidance. Dave has presented at major conferences and forums across New Zealand, Australia, Europe, Asia, and North America.

In 2026, Dave was named as the inaugural Industry Champion at the Clearway Awards in recognition of his leadership and contribution to advancing risk-based work zone safety practice across New Zealand and internationally.