I work at the intersection of applied research, policy and intervention, with a long-standing focus on powered two-wheeler safety and mobility. My work examines how practices and risks emerge from interactions between people, organisations, infrastructure, regulation and wider mobility systems — and how evidence can inform more context-sensitive policies and interventions.
Researching Mobility as a System
Four interconnected research themes frame my work — from the territorial conditions shaping mobility to the mechanisms through which evidence reaches policy.
Mobility Systems & Territorial Dynamics
How mobility practices are shaped by territories, transport services, infrastructure, accessibility, economic constraints and formal and informal forms of organisation and regulation.
Safety Practices & Behaviour
How road users perceive risk, make decisions and develop safety practices — understanding the contexts in which practices become possible, normal or persistent.
Learning, Adaptation & Change
How individual and collective experience, learning and adaptive capacity contribute to the stabilisation or evolution of practices within mobility systems.
Evidence, Policy & Intervention
How research, field evidence and stakeholder knowledge can inform policy, programme design and interventions adapted to specific institutional and territorial contexts.
Powered Two-Wheeler Safety Practices in Territorial Mobility Systems
How do interactions between individual practices, social and organisational dynamics, and territorial configurations contribute to the construction, stabilisation and evolution of powered two-wheeler safety practices in different territorial mobility systems in Africa?
Characterise
Safety practices and the territorial, economic, material and organisational conditions in which they occur.
Understand Interactions
Between individual factors, actor relationships, local mobility organisation and territorial and institutional configurations.
Examine Learning & Adaptation
How individual and collective learning and actors' adaptive capacities contribute to maintaining or changing practices.
Explore Conditions for Change
Through contextualised research-intervention, examining mechanisms that may support the evolution of safety practices.
From Observed Patterns to Mechanisms of Change
The Guiding Aim
Not only to identify what changes, but to understand what changes, for whom, through which mechanisms, under which conditions — and what may or may not transfer to another context.
Mixed Methods
Integration of existing quantitative and spatial data with qualitative investigation to connect observable patterns with underlying mechanisms.
Multi-Level & Systemic Analysis
Micro, meso and macro levels used as permeable analytical scales, with primary focus on the interactions between them.
Field-Based Inquiry
Semi-structured interviews, situated observation and engagement with road users, professional organisations, institutional actors and other stakeholders.
Two Decades Connecting Behaviour, Evidence and Policy
A trajectory spanning European research programmes, applied institutional research and current doctoral work — each phase extending the analytical lens.
2BESAFE — European Research
Risk awareness, behaviour and rider diversity across European contexts. Contribution to guidelines, policy recommendations and further research priorities.
RIDERSCAN — European Knowledge Integration
Pan-European synthesis combining research review, surveys, regulatory and policy analysis, stakeholder consultation and identification of policy and research priorities.
VIAS Institute — Applied Research
Applied studies combining large-scale user profiling, sector analysis and experimental research to understand PTW practices, technologies and opportunities for targeted measures.
Current PhD — Territorial & Systemic Perspective
Extending the analytical lens from individual behavioural determinants towards the interactions through which practices are constructed, stabilised and transformed within territorial mobility systems.
Research Beyond Academia
World Health Organization
Member — Powered Two- and Three-Wheeler Safety Technical Advisory Group. Contributing to international technical guidance through evidence review, expert consultation, emerging-risk analysis and identification of research priorities. Current work: coordinating development of the TAG technical report.
World Health Organization
Invited Observer — Global Technical Working Group on Evidence-Based Legal and Policy Guidance for Road Safety. Contributing to the technical process developing evidence-based legal and policy guidance for national road-safety laws and policies.
OECD / International Transport Forum
Expert — Safe System Working Groups. Contributing to international work on Safe System implementation, including institutional capacity, indicators and implementation frameworks.
European Research & Policy
Long-standing involvement in EU-funded research, expert consultation and translation of evidence into policy recommendations through projects including 2BESAFE and RIDERSCAN.
Selected Research Outputs
Behaviour & Risk
Understanding Risk Taking Behaviour within the Context of PTW Riders — Delhaye, Joshi, Bellet et al. · 2BESAFE, 2010. Behavioural and user-centred analysis of rider diversity, attitudes, perceptions and behavioural choices.
Research → Policy
Guidelines, Policy Recommendations and Further Research Priorities — Delhaye, Bellet, Banet et al. · 2BESAFE, 2011. Translation of multi-country behavioural and risk-awareness research into guidelines, policy recommendations and research priorities.
European Systems & Policy
Powered Two Wheelers Safety — Needs Policy Actions — Delhaye & Marot · RIDERSCAN, 2015. Synthesis of project evidence and recommendations structured around European policy levers: research, legislation, standardisation and specific actions.
User Practices & Data
Photographie de l'usage du 2RM en Belgique — Delhaye & Vandael Schreurs · VIAS institute, 2022. Representative survey of nearly 3,000 respondents profiling PTW practices to support better-targeted research and measures.
Innovation & Experimentation
Effets de l'Affichage Tête Haute intégré dans le casque — Delhaye, Boets, Espié & Teuchies · VIAS institute, 2021. Sector assessment combined with a motorcycle-simulator pilot study and multi-partner research collaboration.
Connecting Knowledge, Context and Action
I am interested in research and policy collaborations that connect mobility, road safety, behaviour, territorial systems and the conditions under which practices and interventions change.
Applied & Intervention Research
Mixed-method and field-based research connecting evidence with implementation.
International Research Programmes
European and international consortia, expert groups and collaborative research.
Policy & Technical Expertise
Evidence synthesis, expert consultation, policy guidance and research-to-practice translation.
Sub-Saharan African Mobility Systems
Research partnerships and field-based work related to PTWs, mobility practices and road safety.
Understanding Mobility Practices, Systems and Change