Friday, 9 October 2026
Australian and New Zealand transport agencies can begin delivering valuable, connected transport services using existing 4G networks, while preparing for more advanced applications as 5G capabilities mature.
New Austroads research identifies seven high-value applications that could improve road safety, traffic management and network efficiency. These include local hazard alerts, curve speed warnings, real-time incident information, adaptive traffic signals, signal priority for buses and freight, pedestrian warnings and road-worker zone alerts.
The research found that many early services do not need to wait for widespread 5G availability. Existing 4G networks can support most of the prioritised applications where coverage, capacity, data quality and governance arrangements are adequate. More advanced 5G capabilities could progressively improve reliability, latency and performance for complex and time-sensitive applications.
Austroads General Manager Research, Guidance and Practice, Paul Davies, said the findings provided agencies with a practical basis for deciding where to begin.
“5G will be an important long-term enabler of connected transport, but agencies do not need to wait for the technology to mature before pursuing practical benefits,” said Paul.
“Local hazard alerts, road-worker zone alerts and curve speed warnings are among the early opportunities that can use existing infrastructure while helping agencies build the operational experience needed for more advanced services.”
The report assessed more than 40 potential applications through a structured value and complexity framework, supported by input from road agencies and stakeholders across the transport, telecommunications, automotive, technology and government sectors. Local alerts achieved the highest overall rating, while road-worker zone alerts and curve speed warnings also offered high safety value with manageable implementation pathways.
The research also found that technology is not the only consideration. Successful implementation will depend on consistent governance, reliable and standardised data, interoperable systems, appropriate security arrangements, sustainable commercial models and coordination between agencies and industry. Regional and remote coverage limitations will also need to be considered when selecting services and locations.
The report proposes a staged, corridor-based pathway, starting with high-value services that can operate on existing networks. It recommends harmonised data exchange through National Access Points and the progressive introduction of 5G capabilities as networks and vehicles become ready. A hybrid approach combining cellular and short-range communications could support the transition.
“This approach will allow agencies to concentrate first on applications that offer practical value, while establishing the foundations for more sophisticated services as 5G technology and vehicle capability develop.”
Download AP-R777-26 Role of 5G Technology in Vehicle and Infrastructure Connectivity
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