AMDS network model

The development of the Network Model is the next phase of the Asset Management Data Standard (AMDS) work programme.

In partnership with the sector, we have created a living centreline that provides a single source of truth and enables better planning and management of New Zealand’s transport networks.

At its simplest, the Network Model is a direct replacement of a Road Controlling Authority’s (RCAs) current road centreline, updated with a basic understanding of where vehicles can travel, as well as pedestrians, cyclists, other micro-mobility (for example scooters and wheelchairs), and public transport users.

The Network Model is the backbone to the AMDS and critical to the management, analysis and reporting of land transport assets. This model underpins the standard and is foundational to pulling the performance and associated asset data together.

The network model represents a significant step in supporting digital engineering across the transport sector and opens the door to exciting insights and understanding of performance. With a shared network model to support our evidence-based decision making and digital tools, we are better placed to achieve the vision of moving New Zealand forward – together, seamlessly, safely, and sustainably.

What the network model provides

The network model  visualises a range of data on a map, including:

• direction of flow
• modes of flow
• route planning
• navigation
• asset location
• restrictions.

The network model includes the following modes:

• cycling
• walking
• micro mobility (scooter and wheelchair)
• small vehicle (car)
• bus
• freight
• rail
• ferry.

The Network Model is:

• open data, and will be published on the NZTA open data portal. It’s free to access and consume without fees or restricted use
• designed to support planning, management, analysis and reporting of land transport assets
• designed to work within the current digital environment without introducing new technology requirements
• managed and maintained by NZTA and RCAs.

Sector benefits

Benefits of a network model include:

• first coherent network model for New Zealand
• cross-boundary planning enabled
• data and model can be accessed by the sector without restrictions
• future planned networks can be visualised (where data exists)
• consistent foundation for other data to be overlayed, for example One Network Framework (ONF) classification, network and performance, and level of services
• consistent analysis and reports – same base data
• can understand customer journeys by mode
• can visualise the roading infrastructure used by public transport providers.

Development approach and timeline

The network model project is being delivered using an agile methodology. NZTA has elected to work closely with WSP to  co-design using agile processes. This unique working relationship means the project team comprises experts from across NZTA and the transport sector who work closely each day to deliver the model into all RCAs across the country.

Our approach to this project featured an early ‘discovery’ phase, where industry experts and end-users helped define the requirements for the network model through a series of workshops, identifying user stories and feature development.

Our solution involves building and hosting the model using a geospatial technology environment within NZTA. Vast quantities of information from RCAs are being imported in 11 staged groups over 18 months and aligned to form a coherent whole, showing how and where different transport modes can move. 

Network Model implementation

Implementation of the network model into the transport sector started in February 2024. The model is now live across all 68 RCAs (Road Controlling Authorities) including State Highways. This is a significant achievement for the transport sector in support of moving New Zealand forward, together, seamlessly, safely and sustainably. In partnership, we have created a living 3D polyline model, a single source of truth, to better enable management and planning on New Zealand’s transport networks. 

AMDS Network Model – published Network Model

The AMDS Network Model is now live! This means, all users (everyone) can now access a map of inter-connected lines showing where transport users can go now, and, in the future. This includes different modes of travel such as walking, cycling, micro mobility, small vehicle and public transport. The model also shows travel restrictions, like one-way roads and road closures, while enabling cross-boundary planning and customer journey visualisation.

The published Network Model is available with open access to use and consume. The model is managed and maintained by all 68 RCAs, KiwiRail, and the New Zealand Transport Agency Waka Kotahi (NZTA).

Published Network Model(external link)

The following reference documents are available to users:

• Network Model user guide – Tables [PDF, 2.5 MB]
• Network Model user guide – Rules [PDF, 1.1 MB]
• Network Model user guide – How to draw a network element [PDF, 2.5 MB]
• Network Model user guide – Linear referencing system tables [PDF, 1.9 MB]
• Network Model known gaps [XLSX, 21 KB]
• AMDS entity relationship diagram [PDF, 393 KB]

Video guides

• Explain Network Model tables(external link)
• Network Model rules(external link)
• Route name ingestion(external link)
• Explain linear referencing system tables(external link)