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The Architecture of HIA Implementation

A systematic unpacking of Dr Monica O'Mullane's HIA-IM research programme: its theoretical scaffolding, methodological toolkit, community engagement protocols, implementation model design, and the institutional rewiring it seeks to achieve.

Four Work Packages, One Implementation Model

HIA-IM is structured around four interlocking Work Packages (WPs). Each generates distinct data streams that converge in WP4 to produce the final implementation model. The design is deliberately iterative: action research cycles within WP1 feed into WP2's analytical framework, while WP3's community engagement toolkit develops in parallel and informs all other WPs. Co-creation with partners is not an add-on but the fundamental operating principle.

HIA 1 (Local): Cork City Development Plan 2022–2028. Commenced October 2023. First HIA on a city development plan in Ireland. Used IPH 2021 HIA Guidance. Included a public engagement event gathering residents' lived experience as formal evidence. Report published CORA repository 2024. Case study published in Impact Assessment and Project Appraisal (2025).

HIA 2 (National): Government Climate Action Plan 2024. Commenced early 2025 with student research assistant Caithlín Sheehan. Tests the model at national policy scale where intersectoral complexity is vastly greater, involving government ministries and cross-departmental coordination.

Method: Action research cycles with HIA Steering Groups (12 members each) and policy end-users (~20 per HIA). The Steering Groups comprise intersectoral stakeholders from health, planning, environment, and community sectors. Data are gathered on the experience of doing the HIA, not just its findings.

Applies two complementary implementation science frameworks simultaneously to HIA data from WP1. CFIR 2.0 (Damschroder et al., 2022) maps the determinants of HIA implementation, particularly the outer setting (policy and institutional drivers) and inner setting (organisational capacity, resources, culture). NPT (Finch et al., 2018) maps the process work people do to embed HIA into routine practice.

The scoping review (Kenny et al., 2025, Health Promotion International) mapped 30+ years of HIA literature against all five CFIR domains, producing the first "routemap" for HIA implementation from an implementation science perspective.

Co-creating a resource to optimise inclusive community participation in HIA in Ireland. Addresses a critical gap: the IPH 2021 HIA Guidance does not include specific guidelines on community engagement. Led by Kirsty Nash (Research Assistant) with Dr Tara Kenny and Ben Harris-Roxas (UNSW). Draft presented at EPH Conference Lisbon, November 2024. Literature review on community participation in HIA ongoing (expected completion October 2025).

The Public Involvement Consultation Group includes members from Cork Environmental Forum, Cork Healthy Cities, Global Action Plan, Coalition 2030, Coast Watch Ireland, Global Health Ireland, Independent Living Group, and Social Justice Ireland.

Iterative development of a contextualised, contemporary Irish HIA implementation model by integrating and triangulating qualitative and quantitative data from all WPs. The model will synthesise: HIA process stages (IPH framework), implementation determinants (CFIR), normalisation mechanisms (NPT), community engagement protocols (WP3 toolkit), and governance structures.

The TRANSLATE-HIA knowledge translation project (HRB KTA-2024-009, Dec 2024–April 2026) will translate the emerging model into practical resources. The "Getting Going with HIA" resource and HIA FAQ infographic are being co-produced with practitioners.

CFIR × NPT: A Hybrid Implementation Science Lens

O'Mullane's selection of CFIR and NPT is deliberate and justified in the protocol. CFIR captures what determines whether HIA succeeds or fails in a given institutional context. NPT captures the process work that people do to make HIA routine rather than episodic. Both are applied simultaneously to the same HIA Steering Group data, producing complementary analytical layers that neither framework could generate alone.

CFIR 2.0

Maps implementation determinants

Consolidated Framework for Implementation Research (Damschroder et al., 2022). Five domains, ~39 constructs. O'Mullane draws particularly on outer and inner setting domains.

  • Innovation
    HIA itself as the "innovation" being implemented. Its complexity, evidence strength, relative advantage over existing practice.
  • Outer Setting
    Policy environment, legislation, mandates, political will, peer pressure from other jurisdictions. Kenny et al. (2025) found this is where facilitation is strongest: political mandate and policy endorsement drive HIA uptake.
  • Inner Setting
    Organisational capacity, resources (financial, human, knowledge), culture, implementation climate. Kenny et al. (2025) found resource constraints here are the dominant barrier: access to skills, training, and sustained funding.
  • Individuals
    Knowledge, beliefs, self-efficacy, and motivation of those involved in HIA. Champions and boundary-spanners play critical roles.
  • Process
    Planning, engaging, executing, reflecting on the HIA. Includes stakeholder engagement quality and feedback loops.

Normalisation Process Theory

Maps the process of embedding HIA in routine practice

NPT (Finch et al., 2018) is a middle-range sociological theory examining how complex interventions become embedded and sustained. Four core constructs, each applied as an analytical lens to HIA Steering Group experiences.

Coherence
"What is the work?"

How stakeholders make sense of HIA. Do they understand what it is, how it differs from other assessments, and why it matters? O'Mullane's doctoral research found that coherence failures (HIA being poorly understood) are a root cause of implementation failure.

Cognitive Participation
"Who does the work?"

How people are enrolled and engaged in HIA. Who commits, who champions it, who resists? The intersectoral Steering Group design is itself an intervention in cognitive participation, deliberately bringing non-health actors to the table.

Collective Action
"How does the work get done?"

The operational work of conducting HIA. Resource allocation, division of labour, skill requirements, interactional workability between sectors. Where does the actual "doing" break down? This is where institutional gatekeeping (from the Dove Gardens research) becomes visible.

Reflexive Monitoring
"How is the work understood?"

How participants appraise HIA after engaging with it. Does it produce valued outcomes? Would they do it again? This maps directly to sustainability and normalisation: whether HIA becomes embedded or remains an episodic exercise.

The protocol explicitly states that the "rationale for choosing the action research design approach is to ensure the creation of the implementation model is underpinned by an iterative development... involving learning, reflection and action in the HIA approach of those involved." This means the frameworks are not applied post hoc to completed HIAs but embedded in real-time, shaping how the research team and Steering Groups reflect on their own practice.

Filling the Participation Gap in Irish HIA

Community involvement is a core value of HIA, enshrined in the Gothenburg Consensus (1999) alongside democracy, equity, sustainability, and ethical use of evidence. Yet the IPH 2021 HIA Guidance for Ireland, the primary procedural document for conducting HIAs, does not include specific guidelines on community engagement. WP3 exists to close this gap.

The toolkit is being co-created with the Public Involvement Consultation Group (PICG), comprising representatives from Cork Environmental Forum, Cork Healthy Cities, Global Action Plan, Coalition 2030, Coast Watch Ireland, Global Health Ireland, Independent Living Group, and Social Justice Ireland. This is not a top-down academic product but a resource shaped by the organisations and communities who would use and be affected by HIA.

Literature Review on Community Participation in HIA

A systematic literature review mapping existing evidence on community participation in HIA internationally. Led by Kirsty Nash with Dr Tara Kenny and Dr Monica O'Mullane. The review examines: what methods have been used to involve communities in HIA, at which stages of the HIA process, with what outcomes, and what barriers and facilitators have been identified.

Status: Ongoing. Expected completion October 2025 (per Global Action Plan update, July 2024).

Theoretical lens: The review likely applies equity and power analysis, consistent with O'Mullane's doctoral focus on institutional gatekeeping and whose evidence counts in policy processes.

Systematic Literature Review Equity Analysis Power Mapping

Lessons from Cork CDP HIA Public Engagement

The Cork City Development Plan HIA (WP1) included a dedicated public engagement event to gather residents' lived experience as formal evidence alongside epidemiological and planning data. This event tested community engagement methods in practice and generated empirical data on what works and what doesn't in an Irish HIA context.

The public engagement event report was published on the UCC CORA repository (2024), providing a documented case study of community voice as valid HIA evidence. Findings from this process directly feed WP3's toolkit development.

Key insight from O'Mullane's doctoral work (Dove Gardens, Derry): community voices are often formally gathered but then institutionally filtered out. The toolkit must address not just how to engage communities but how to protect and transmit that evidence through institutional gatekeeping structures.

Public Engagement Event Lived Experience as Evidence Process Documentation CORA Repository Report

Draft Toolkit Presentation & Peer Review

The draft Community Engagement Toolkit was presented at two major conferences in late 2024:

Irish Global Health Network Conference (October 2024) and the European Public Health (EPH) Conference, Lisbon (November 2024). The EPH presentation is documented as: Nash, K., Kenny, T., O'Mullane, M., and Harris-Roxas, B. (2024) "Developing a community engagement toolkit for health impact assessment in Ireland," European Journal of Public Health, 34.

These presentations served dual purposes: international peer review of the draft toolkit and exposure to community engagement practices from other countries' HIA traditions (particularly Australia via Harris-Roxas and Wales via Green).

EPH Conference Abstract 2024 Irish Global Health Network Presentation International Peer Review

TRANSLATE-HIA & "Getting Going with HIA" Resource

The TRANSLATE-HIA project (HRB KTA-2024-009, December 2024–April 2026) is translating HIA-IM's emerging findings into practical resources. Research Assistant Eibhlín Looney joined the team in July 2025 specifically for this work. UCC SREC ethical approval: Log no. 2025-182.

"Getting Going with HIA" Event (6 November 2025, Dr Dora Allman Room, The Hub, UCC): The first event of its kind in Ireland, bringing together ~60 practitioners from HSE, NGOs, local authorities, private sector, and academia.

Morning session: Expert roundtable chaired by Denise Cahill (Cork Healthy Cities). Speakers: Karen O'Mahony (Cork City Council, Senior Executive Planner/Urban Designer), Johnny Liu (London Borough of Tower Hamlets), Dr Margaret Douglas (Public Health Scotland), Dr Liz Green (Public Health Wales, WHO Collaborating Centre). Welcome by Prof Ella Arensman (Head, UCC School of Public Health).

Afternoon session: World Café on "Strategies for Getting Going with HIA" — a participatory method using facilitated table discussions to create a practical resource for practitioners starting HIA. Outputs: a "Getting Going with HIA" resource document and an HIA "Frequently Asked Questions" infographic.

Event recordings available via HEAnet media services. Webinar recordings of reflections on the Cork CDP HIA process are also available.

World Café Method Practitioner Co-Production "Getting Going with HIA" Resource HIA FAQ Infographic HEAnet Event Recordings

Toolkit Finalisation & Model Integration

The Community Engagement Toolkit will integrate: (1) the systematic literature review findings, (2) empirical lessons from the Cork CDP HIA public engagement, (3) peer feedback from EPH Conference and Irish Global Health Network, (4) practitioner insights from the World Café, and (5) ongoing data from the Climate Action Plan HIA (HIA 2) community engagement processes.

The final toolkit becomes a component of the overarching HIA Implementation Model (WP4), providing specific guidance on: when and how to engage communities at each HIA stage, how to ensure marginalised and disadvantaged populations are meaningfully included, how to document and protect community evidence through institutional processes, and how to feedback HIA outcomes to communities.

Status: Synthesis phase expected late 2026. The toolkit will be published as an open-access resource, stored on UCC CORA, and disseminated through TRANSLATE-HIA networks.

Open-Access Toolkit Publication CORA Repository WP4 Model Integration
Five-Layer Architecture for HIA Institutionalisation

The HIA Implementation Model under construction is not a simple procedural flowchart. It is a multi-layered architecture that maps the process of HIA against its institutional determinants, normalisation mechanisms, community engagement requirements, and governance structures. The model is being developed iteratively through triangulation of data from all four Work Packages.

Layer 5

Policy & Institutional Context

CFIR Outer Setting. Policy mandates (Healthy Ireland, Climate Action), legislation, political will, sectoral norms, inter-jurisdictional peer influence. Maps the macro-conditions that enable or obstruct HIA. O'Mullane's doctoral finding: without institutional mandate, even high-quality HIAs are "left to gather dust on shelves."

Layer 4

Organisational Capacity & Resources

CFIR Inner Setting. Available expertise, funding, data, training, organisational culture. Kenny et al. (2025) found "availability of resources" (skills, information, financial and human capacity) is the dominant implementation barrier in HIA globally. The model specifies minimum resource thresholds for each HIA depth level.

Layer 3

HIA Process Stages

The operational spine: six stages from the IPH 2021 HIA Guidance (screening, scoping, appraisal, reporting, decision-making, monitoring/evaluation). Three depth levels: desk-based (2–6 weeks), rapid (~12 weeks), comprehensive (~6 months). Each stage has specific implementation requirements from the layers above and below.

Layer 2

Normalisation Mechanisms

NPT constructs mapped onto each HIA stage. Coherence (sense-making at screening/scoping), Cognitive Participation (stakeholder enrolment at scoping), Collective Action (operational delivery at appraisal), Reflexive Monitoring (evaluation of outcomes). These explain how HIA moves from episodic project to embedded routine practice.

Layer 1

Community Engagement Protocols

WP3 Toolkit. Guidance on when and how to involve communities at each HIA stage, equity-focused methods for reaching marginalised populations, documentation protocols for community evidence, and mechanisms for feeding back HIA outcomes to communities. This layer addresses the democratic and equity values of the Gothenburg Consensus.

The model is designed to be prescriptive but adaptable: it specifies what needs to happen at each layer and stage but allows local adaptation based on context (policy level, sectoral setting, resource availability). The dual-scale testing (local CDP vs. national Climate Action Plan) validates which elements are universal and which are scale-dependent.

From Doctoral Insight to National Model

Tracking the full arc from O'Mullane's doctoral study (supervised by Dr Aodh Quinlivan, Dept. Government & Politics, UCC, 2008) through to the current HIA-IM programme and its knowledge translation outputs.

2005–2008
Doctoral Research
PhD in Dept. of Government & Politics, UCC. Supervised by Dr Aodh Quinlivan. Examined HIA institutionalisation across Ireland: Dove Gardens (Derry), Traveller accommodation (Donegal), traffic/transport, air quality (Belfast). Established new institutionalist theoretical lens.
2008–2010
Postdoctoral Work & Southern HIA Network
HRB-funded postdoctoral research in Dept. of General Practice, UCC (GP perspectives on diabetes care). Co-founded Southern HIA Network Ireland. Delivered HIA lectures to MPH students.
2010–c.2018
Trnava University & International Work
Lecturer at Trnava University, Slovakia (Slovak Ministry of Education funded). Studied Slovakia's unique HIA legislation. Published OUP edited volume (2013, 18 chapters, 35 contributors). GENOVATE gender equality research. Marie Skłodowska-Curie Individual Fellowship (Horizon 2020, grant 750408).
January 2023
HIA-IM Project Launch
HRB Emerging Investigator Award (EIA-2022-001) secured. Four-year programme co-hosted between UCC School of Public Health and ISS21. Dr Tara Kenny appointed postdoctoral researcher.
October 2023
HIA 1 Commenced: Cork City Development Plan
First HIA on a city development plan in Ireland. HIA Steering Group assembled with intersectoral representation. Used IPH 2021 HIA Guidance as procedural framework.
March 2024
Study Protocol Published (v1)
O'Mullane, M., Kenny, T., Nash, K. et al. HRB Open Research, 7:14. DOI: 10.12688/hrbopenres.13873.1. Detailed the hybrid CFIR+NPT framework, action research design, and four WP structure.
2024
Cork CDP HIA Completed & Reported
HIA report and public engagement event report published on CORA repository. Webinar on process reflections recorded. Kirsty Nash joined as Research Assistant for WP3.
Oct–Nov 2024
WP3 Draft Toolkit Presented
Draft Community Engagement Toolkit presented at Irish Global Health Network Conference (October) and European Public Health Conference, Lisbon (November). Nash, K. et al. (2024) in European Journal of Public Health.
December 2024
TRANSLATE-HIA Awarded
HRB Knowledge Translation Award (KTA-2024-009). 16-month project (Dec 2024–April 2026) to translate HIA-IM findings to policy and practice.
January 2025
First HIA Module in Ireland
EH3005 "Health Impact Assessment" launched. BSc Public Health Sciences, 3rd year. Designed and coordinated by O'Mullane. Open to students from other degree programmes.
Early 2025
HIA 2 Commenced: Climate Action Plan
National-level HIA on Government Climate Action Plan 2024. Caithlín Sheehan (student research assistant) on the team. Tests implementation model at national scale.
Feb–May 2025
Major Publications
Protocol v3 (DOI: 10.12688/hrbopenres.13873.3). Kenny et al. CFIR scoping review (DOI: 10.1093/heapro/daaf080). O'Mullane et al. Cork CDP HIA case study (DOI: 10.1080/14615517.2025.2590854).
July 2025
TRANSLATE-HIA Team Expanded
Eibhlín Looney joined as Research Assistant for TRANSLATE-HIA. Focus on knowledge translation resources and event organisation.
6 November 2025
"Getting Going with HIA" Event
First event of its kind in Ireland. ~60 attendees. Expert roundtable + World Café. Producing "Getting Going with HIA" resource and HIA FAQ infographic.
Now — February 2026
Current Phase
HIA 2 (Climate Action Plan) in progress. WP3 literature review nearing completion. Community Engagement Toolkit being refined. TRANSLATE-HIA resources in production. International collaboration with Trnava University on interactive HIA teaching platform (KEGA funded, 2025–2027).
April 2026
TRANSLATE-HIA Concludes
Knowledge translation resources finalised and published. "Getting Going with HIA" resource and infographic disseminated.
Late 2026
HIA-IM Model Integration
WP4 synthesis: triangulation of all WP data. Community Engagement Toolkit finalised. Draft implementation model produced. Open-access publication of all outputs on CORA.
2027
Implementation Model Dissemination
Final model published. International dissemination via EUPHA, WHO Healthy Cities, and partner networks. Potential for model adoption in other Irish local authorities and government departments.
How the Research Gets Done

O'Mullane is a qualitative-dominant mixed-methods researcher. Her training in political science under Dr Aodh Quinlivan means she approaches HIA as a political process, not merely a technical one. Her methods are chosen to capture institutional dynamics, power relations, and the lived experience of doing HIA in real institutional contexts.

Primary Methodology

Action Research

The non-negotiable methodological spine. Iterative cycles of planning, action, observation, and reflection. Applied in real-time during HIA conduct, meaning the research team and Steering Groups are simultaneously doing HIA and reflecting on how they are doing it. Based on Bradbury (2022).

Qualitative

Semi-Structured Interviews

With HIA Steering Group members (Group A, ~12 per HIA) and policy end-users (Group B, ~20 per HIA) from city council and government ministries. Interview schedules structured around NPT and CFIR constructs. Captures the institutional texture that quantitative methods cannot.

Qualitative

Guided Reflection

A method O'Mullane developed in her GENOVATE gender equality work (published Archibong et al., 2016, International Journal of Organisational Diversity). Functions as both a data collection and organisational learning tool. Steering Group members reflect on their experience of HIA participation.

Qualitative

Qualitative Longitudinal Study

Her doctoral method, carried into HIA-IM. Tracks how institutional factors, stakeholder relationships, and implementation dynamics evolve over the full life cycle of each HIA, not just at a single point in time.

Participatory

World Café

Used at the "Getting Going with HIA" event (Nov 2025). Facilitated roundtable discussions with rotating participants. Generates practitioner insights on strategies for starting HIA. Based on Brown & Isaacs' World Café method. Outputs directly feed the "Getting Going" resource and WP3 toolkit.

Participatory

Public Engagement Events

Used in the Cork CDP HIA to gather residents' lived experience as formal evidence. Reports published on CORA repository. Positions community voice alongside epidemiological data and planning evidence. Addresses HIA's equity values.

Analytical

CFIR-Informed Scoping Review

Kenny et al. (2025) mapped HIA literature against all five CFIR 2.0 domains to produce a "routemap" for HIA implementation. Novel application of CFIR to HIA. Published in Health Promotion International (DOI: 10.1093/heapro/daaf080).

Analytical

Document & Policy Analysis

Systematic analysis of development plans, climate strategies, IPH guidance, institutional responses to HIA recommendations. Captures the formal policy trail from HIA findings through to (non-)adoption by decision-makers.

Analytical

Thematic Analysis

Interview and reflection data coded against NPT constructs (coherence, cognitive participation, collective action, reflexive monitoring) and CFIR domains (outer setting, inner setting, innovation, individuals, process). Dual coding provides complementary analytical layers.

Integration

Data Triangulation

WP4 integrates qualitative data (interviews, reflections, policy analysis) with process data (action research cycles) and community engagement data (WP3). Convergence, complementarity, and divergence across data streams are systematically analysed to build the implementation model.

Intersectoral by Design, Multi-Scale by Necessity

The ecosystem is constructed to mirror the intersectoral reality that HIA requires. Health is socially determined by decisions made in planning, transport, housing, environment, and employment. The Steering Groups deliberately recruit across these sectors. The dual-scale design (local CDP + national Climate Action Plan) tests whether the same implementation model holds across fundamentally different institutional contexts.

Core Research Team

UCC School of Public Health & ISS21

Dr Monica O'Mullane (PI) Dr Tara Kenny (Postdoc) Kirsty Nash (RA, WP3) Caithlín Sheehan (Student RA, HIA 2) Eibhlín Looney (RA, TRANSLATE-HIA) Dr Sheena McHugh (UCC, Implementation Science) Prof Ivan Perry (UCC, Epidemiology)
National Partners

Policy, Health Service & Civil Society

Cork City Council (Karen O'Mahony) HSE (Dr Ina Kelly, Dr Paul Kavanagh, Dr Mary O'Mahony) IPH Ireland (Dr Joanna Purdy) EPA Ireland (Tadhg O'Mahony) Slaintecare (Vinnie O'Shea) Cork Healthy Cities (Denise Cahill) Cork Environmental Forum (Bernie Connolly) Global Action Plan (Hans Zomer) Coalition 2030 Coast Watch Ireland (Karin Dubsky) University of Galway (Dr Lisa Pursell) Trinity College Dublin Sligo CC (Leonora McConville)
International Academic Partners

Comparative Expertise & Peer Review

UNSW Australia (Dr Ben Harris-Roxas) Public Health Wales (Dr Liz Green, WHO Collaborating Centre) Public Health Scotland (Dr Margaret Douglas) BCA Insight UK (Ben Cave) Uni. Bradford (Prof Uduak Archibong) Uni. Strathclyde (Prof Katherine Smith) Trnava University Slovakia (Dr Jarmila Pekarcikova) UNSW Sydney (Dr Fiona Haigh)
Community & Public Involvement

Public Involvement Consultation Group (PICG)

Cork Environmental Forum Cork Healthy Cities Global Action Plan Coalition 2030 Coast Watch Ireland Global Health Ireland Independent Living Group Social Justice Ireland The Wheel
What Remains to Be Built

IPH Guidance Gap: No Community Engagement Protocols

The all-island IPH 2021 HIA Guidance, the primary procedural document for HIA in Ireland, lacks specific guidance on community engagement. WP3 addresses this directly, but the gap means every HIA conducted in Ireland to date has had to improvise community participation. The toolkit aims to fill this at the national guidance level.

Scale Translation: Local to National

The implementation model has been primarily tested at local scale (Cork CDP). HIA 2 (Climate Action Plan) is the first test at national scale, where intersectoral complexity is fundamentally different: government ministries, cross-departmental politics, national vs. local mandate structures. Whether the same CFIR/NPT framework holds across scales remains an open empirical question.

Institutional Gatekeeping: Evidence-to-Policy Transmission

O'Mullane's doctoral finding (2008) remains the central problem: HIA evidence is often gathered but institutionally filtered out before reaching decision-makers. The implementation model must address not just how to do HIA but how to construct institutional pathways that protect evidence transmission. This is fundamentally a governance design problem.

Sustainability Beyond Project Funding

HIA-IM is funded through 2026, TRANSLATE-HIA through April 2026. The ultimate test of the implementation model is whether HIA becomes embedded in Irish policy-making after project funding ends. NPT's reflexive monitoring construct is designed to assess this, but the answer won't be known until the post-project period.

Digital/Quantitative Methods Gap

The HIA-IM methodology is qualitative-dominant. While appropriate for understanding institutional dynamics, the model does not currently incorporate quantitative health impact modelling, GIS spatial analysis, or computational approaches to health determinant mapping. Integrating these would strengthen the appraisal stage of HIA.

Aspiration: HIA as Routine Practice in Irish Local Government

The ultimate goal is normalisation: HIA becoming as standard as Environmental Impact Assessment in Irish planning. This requires legislative or regulatory change, sustained capacity building, and the kind of institutional culture shift that the implementation model seeks to enable. The Cork Healthy Cities platform provides a governance test-bed.

Aspiration: International HIA Teaching Platform

Collaboration with Dr Jarmila Pekarcikova at Trnava University on "Creation of an interactive educational online platform to support teaching of HIA methodology" (KEGA funded, 2025–2027). This would translate the HIA-IM knowledge base into an educational resource with international reach.

Aspiration: Climate-Health Nexus Integration

The Climate Action Plan HIA (HIA 2) positions health at the centre of climate policy. If successful, this establishes a precedent for mandatory health consideration in all future Climate Action Plans, linking HIA to Ireland's legally binding carbon budgets and 51% emissions reduction target by 2030.

Aspiration: Built Environment as Health Infrastructure

The Cork CDP HIA demonstrated that city development plans are implicit health interventions. The aspiration is for architects, urban designers, and planners to adopt HIA as a standard tool in the design process, recognising that spatial decisions about housing, density, green space, and transport are fundamentally decisions about population health and wellbeing.

HIA Is Not an Assessment. It Is an Institutional Design Intervention.

The conventional reading of O'Mullane's work positions HIA as a technical tool for assessing health impacts of policy. But her research programme, read as a whole, reveals something more fundamental.

HIA, as O'Mullane constructs it, is an intervention in institutional behaviour. It restructures who has voice in decision-making (community engagement protocols), what counts as valid evidence (lived experience alongside epidemiology), and where health sits in the organisational hierarchy (intersectoral Steering Groups that force non-health actors to engage with health consequences). The implementation model she is building is not a method for doing better assessments. It is a model for rewiring institutional architecture so that health equity becomes a structural input to governance.

This reframe matters for architecture and resilient design. If the built environment is a primary health determinant, and if city development plans are implicit health interventions, then the institutional systems that produce those plans are themselves health infrastructure. O'Mullane's HIA-IM is, at its core, an attempt to redesign that infrastructure. Not the buildings. The decision systems that produce them.