To help manage expectations and build public confidence, TfL is developing guidance for prospective operators covering everything from strategic objectives to practical operational requirements, including incident management and coordination with emergency services.

Public trust may prove one of the most important factors determining deployment success. High-profile examples from international markets, including autonomous vehicles stopping unexpectedly or responding poorly to unusual situations, have demonstrated how quickly confidence can be undermined.

The deployment pathway may therefore depend as much on governance and accountability as it does on artificial intelligence. Preparation is equally important from an infrastructure perspective, although not necessarily in the ways many authorities assume. Marcel Pooke of Connected Places Catapult argued that one of the biggest risks lies in becoming trapped in an endless cycle of pilots. Testing technology is relatively straightforward. Scaling it into operational services is far harder.

Too often, lessons learned from trials remain within individual organisations. Other authorities subsequently commission similar projects, repeating the same exercises rather than building collectively on previous experience. The result is slower progress and unnecessary duplication. Perhaps more importantly, authorities should resist the temptation to pursue technology simply because it appears innovative.

The starting point should be understanding existing assets. Most organisations already possess substantial data resources, asset registers, GIS systems and operational information. Before investing in digital twins, roadside equipment or new connected technologies, authorities should understand what capabilities already exist and identify the operational problems they are actually trying to solve. The question is not whether to buy a digital twin, but to understand what decisions need improving and which tools are genuinely required to achieve that outcome.

John Mathewson of National Highways demonstrated how that thinking has evolved within strategic road management. Early connected vehicle programmes focused heavily on direct roadside communications and short-range technologies. Increasingly, the emphasis has shifted towards data sharing.

Rather than communicating directly with every vehicle, National Highways is providing operational information to navigation platforms and aggregators such as Google, Apple and Waze. This approach allows safety and congestion information to reach drivers through the systems they already use. Such developments support wider ambitions around safety and network performance while also creating benefits on roads without extensive roadside technology deployments. The value, ultimately, lies not in communication technology itself but in ensuring the right information reaches the right people at the right time.

That same principle was echoed by TRL's James Long, who suggested that discussions around automated mobility often focus too heavily on infrastructure and not enough on data assurance. From TRL's experience operating the Smart Mobility Living Lab and supporting deployment programmes across the UK, the critical question is not simply what data is available. It is whether operators trust that data enough to rely on it.

Availability is only the beginning, provenance, integrity, assurance and accountability all matter. Local authorities must therefore think carefully about what assets they make available and the responsibilities that may accompany those decisions. Offering access to communications networks, fibre infrastructure or operational systems can create valuable opportunities. Equally, it can introduce new obligations and liabilities that organisations may not initially anticipate.

As the discussion drew to a close, panellists were asked what the sector must do differently if connected and autonomous vehicles are to become everyday reality. Their answers varied, but together they painted a remarkably consistent picture. Digital and physical roads must be considered as a single system rather than separate worlds. Authorities need new skills, new governance structures and greater organisational readiness. Different disciplines must work together around clearly defined operational use cases. Stronger partnerships will be essential, particularly between transport authorities, emergency responders, operators and technology providers. Most importantly, preparation must begin before deployment arrives.

The central message from the debate was clear. The UK does not face a technology problem. Many of the building blocks already exist. The bigger challenge lies in governance, collaboration, data stewardship and institutional readiness. Autonomous vehicles are steadily moving beyond the pilot phase. Success will not be measured by the next demonstration project or carefully controlled trial. It will be judged by whether services can operate safely, reliably and affordably on real roads, serving real passengers within the complex realities of everyday transport networks.