NZTA continues to work closely with our contractors and TTM suppliers to pilot aspects of the risk-based approach on the state highway network via our maintenance contracts. We’ve piloted the NZGTTM at worksites at these locations:
The focus of the pilots is to learn as much as possible about the practical application of the risk-based guidance. Key insights so far include:
We’ve analysed the data and insights from the initial pilots in Northland, Horowhenua Manawatu, North Canterbury and Marlborough and have created a summary report covering some key insights and learnings.
Read the summary NZGTTM pilot report [PDF, 2.4 MB]
Northland pilot showing a cyclic vehicle with no lead or tail vehicles just the team with all road work signs on the truck.
The Fulton Hogan Northland NOC NZGTTM pilot focused on reactive and planned cyclic maintenance works. The trial ‘went live’ on central part of the State Highway network (generally within 80km of Whangarei) on 4 March 2023. Cyclic maintenance by its nature covers many locations, with a wide variety of activities and environments to deal with.
Read more about the Fulton Hogan pilot(external link)
The Manawatū – Whanganui NOC was led by Higgins with Beca as professional services partner. To date, the trial has been able to take 7-9 work activities through the risk-assessment and design workshop steps, with three of these proceeding all the way through to implementation.
Read more about the Higgins pilot(external link)
Downer piloting the NZGTTM in North Canterbury using a static mobile approach and vehicle per minute counts and clear sight distances to determine whether it is appropriate for works.
The North Canterbury NOC pilot tested how to embed key workstreams into the NZGTTM risk-based approach, serving as a real-world trial to refine and demonstrate its methodologies. Downer is leading in a system and processes integrating the changes in their code of conduct and setting of expectations.
