34. What are the increased risks to pedestrian and road user safety associated with evolving technologies affecting the weights and dimensions of vehicles?

Background

DfT’s ARI identifies 40 broad research questions that reflect areas of strategic importance to the department, where further insight and collaboration could enhance our evidence base, challenge assumptions and strengthen future decision-making. The ARI is organised around four complementary themes, and this question sits within the Cross-cutting Systems, Enablers and Uncertainty theme.

Delivering outcomes across growth and place, journeys for people, and green and healthy transport depends not only on what interventions are pursued, but on how the transport system behaves, adapts and changes under real world constraints.
The questions in this theme focus on system level dynamics that underpin all outcomes, particularly how risks, costs and change are managed in complex and uncertain contexts, including governance and public trust. Together, they reflect the reality that uncertainty is an enduring feature of the transport system, and that understanding these system level factors is essential to achieving progress across all strategic outcomes.

Within this theme, the questions are organised into four sections that reflect different system level dimensions — decision making under uncertainty, system resilience and risk, how change happens in practice, and the role of innovation, data and finance.

Section 1: How are transport decisions really made under uncertainty and competing objectives? This theme brings together questions that cut across all strategic outcomes, focusing on how the transport system behaves, adapts and changes under real world constraints.
Section 2: How resilient is the transport system to shocks, stress, risk and failure? This section focuses on the transport system’s ability to operate safely, securely and affordably under increasing pressure, risk and uncertainty.
Section 3: What drives change in the transport system in practice? This section focuses on the people, institutions and system capabilities that determine whether evidence, policy and innovation translate into real world change.
Section 4: How do innovation, data, finance and new technologies reshape the transport system, and with what consequences? This section examines how innovation, data, finance and new technologies influence system behaviour, risk and outcomes over time.

Next steps

If you have research relevant to this topic, are planning work in this area, or would like to discuss potential collaboration, please get in touch. For our monitoring and evaluation purposes, we are also keen to hear if the ARI has informed or influenced your research.

To get in touch and report the use, please fill in the form https://submit.forms.service.gov.uk/form/264718/dft-areas-of-research-interest-ari/

Link to DfT ARI: https://www.gov.uk/government/publications/dft-areas-of-research-interest/areas-of-research-interest-2026

Related UKRI funded projects


  • Predictive ApproacHes fOr SafEr UrBan Environments

    Safer urban environments are needed for all road users to ensure the European targets to halve road deaths and injuries by 2030 are met. Vulnerable road users require specific attention in an urban environment that is su...

    Funded by: Horizon Europe Guarantee

    Lead research organisation: INTERNATIONAL ROAD ASSESSMENT PROGRAMME

    Why might this be relevant?

    Partially relevant as it focuses on road safety in urban environments but does not specifically address the risks associated with evolving technologies affecting vehicle weights and dimensions.

  • Research Hub for Decarbonised Adaptable and Resilient Transport Infrastructures (DARe)

    Our Vision is for climate resilient, net zero development of the transport system to be guided by systems analysis. When this vision is realised, decision-makers will have access to (and visualisation of) data that tells...

    Funded by: SPF

    Lead research organisation: Newcastle University

    Why might this be relevant?

    Partially relevant as it addresses resilience and decarbonisation of transport infrastructures but does not specifically focus on risks associated with evolving technologies affecting vehicle weights and dimensions.

  • Systematic and orchestrated deployment of safety solutions in complex urban environments for ageing and vulnerable societies

    The emergence of complex urban mobility environments where unknown interactions between different types of VRUs and between VRUs and motorised vehicles poses the need for a clear understanding of user behaviours, fair an...

    Funded by: Horizon Europe Guarantee

    Lead research organisation: UNIVERSITY OF THE WEST OF ENGLAND

    Why might this be relevant?

    Partially relevant as it focuses on safety solutions in complex urban environments but does not specifically address the risks associated with evolving technologies affecting vehicle weights and dimensions.

  • Motorway Mobility

    Motorway Mobility is a truly innovative concept that breaks the boundaries of conventional thinking. It is a vision that is aiming at the first global deployment of autonomous vehicles at significant scale to create a ne...

    Funded by: Innovate UK

    Lead research organisation: CONNECTED PLACES CATAPULT

  • Unicard Smart Mobility: Covid recovery for the transport sector through micromobility data

    This project is to develop and launch "Unicard Smart Mobility". It is an open transport data collection and visualisation platform and set of standards, designed to help Local Authorities (LA) adapt to the rapi...

    Funded by: Innovate UK

    Lead research organisation: UNICARD LIMITED

  • Active Travel Explorer

    Public description Economic, social and environmental benefits are associated with safe active travel, with external benefits in the EU calculated at €0.18/km for cycling and €0.37/km for walking (driving costs €0.11/km)...

    Funded by: Innovate UK

    Lead research organisation: SPACE SYNTAX LIMITED

  • TRANS-SAFE

    The TRANS-SAFE project will involve national, regional, and city level demonstrations to test different types of innovative and integrated Safe System solutions, complemented by a comprehensive toolbox, capacity developm...

    Funded by: Horizon Europe Guarantee

    Lead research organisation: WALK21 FOUNDATION

  • MULTIMODAL urban transport: integrated modelling and simulation towards net-zero, inclusive mobility

    Domestic transport is the UK's highest emission sector, and congestion in cities is costly (e.g. London £5.1bn in 2021). Drastically reducing urban car dominance is imperative to reach the UK's 2050 net-zero target...

    Funded by: UKRI FLF

    Lead research organisation: Loughborough University

  • Data-Driven Road Safety Tool

    The "Data Driven Road Safety Tool" project is expected to be a game-changing product as a key enabler towards improving road safety, aligned with such initiatives as the London Mayors "Vision Zero" am...

    Funded by: Innovate UK

    Lead research organisation: FORD SMART MOBILITY U.K. LIMITED

  • DRT for DRT: Developing Relevant Tools for Demand Responsive Transport

    The rise in private car use in the UK has major implications relating to how transport more generally is provided. One problem is that conventional public transport (i.e. bus, light rail and heavy rail) is steadily becom...

    Funded by: EPSRC

    Lead research organisation: Loughborough University