Overarching principles

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TII’s Overarching Principles

TII’s two Overarching Principles in Figure 6 below underpin our six Sustainability Principles, providing the foundation of our Sustainability Implementation Plan. They set out our strategic direction and support consistent delivery across our activities, such as those highlighted in Figure 10. These principles are integral to delivering sustainable projects and programmes and embedding sustainability across TII.

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Our overarching principles underpin six sustainability principles that focus on key areas of delivery, guiding the development of sustainable project outcomes and solutions.

Figure 6: TII’s Overarching Principles

TII Sustainability Implementation Plan | Our Future| 2026

Sustainability Ambitions

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This section outlines TII Sustainability Ambitions to 2030, 2040 and 2050, together with a sample of workstreams that will support their achievement. These sustainability ambitions are aligned to the TII Statement of Strategy 2026-2030, work towards the achievement of the National Climate Objective and provide a direction of travel for sustainability implementation at TII. Achievement of these ambitions will be supported by this implementation plan and through the delivery of a wide range of projects and initiatives (e.g. climate adaptation, biodiversity, circular economy, and social impact) that cut across a number of these workstreams.

Figure 7: Sustainability Ambitions

TII Sustainability Implementation Plan | Our Future| 2026

Working Together

The successful delivery of our ambition is underpinned by our two overarching principles; Leadership, Collaboration and Partnership, and Working Together and Enabling People. We recognise that our ambitions and goals cannot be achieved in isolation, and we must continue to work with our internal and external stakeholders. TII is responsible for the delivery, management, and operation of the National Road network, light rail network, Metrolink and greenways. All of these networks are used by communities across Ireland and interact within a complex transport ecosystem. Across the transport sector, TII works under the direction of the Department of Transport and with other partners including local government, academia, industry, European authorities, other government agencies, and other public transport operators.

We recognise that to achieve the ambition of the SIP, and to deliver holistically upon the SIP, we must collectively work with stakeholders across different organisations within the transport ecosystem. Figure 8 below illustrates some of the key transport entities, highlighting the importance of integrating coordination across entities for a safe, efficient and equitable transport network.

Figure 8: TII Stakeholders

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TII Sustainability Implementation Plan | Our Future| 2026

Roles and Responsibilities

Sustainability: A responsibility for us ALL

To deliver on the outcomes outlined in our SIP we must all work together. We have a wealth of expertise across all divisions within TII, and we are supported by expertise provided by our industry partners. Some of us may contribute directly to achieving Sustainability Outcomes, while others may contribute indirectly through supporting the work of colleagues or influencing the work of other parties outside of TII. We need to ensure that our staff is trained, empowered and skilled in integrating sustainability into all TII’s activities. This section sets out roles and responsibilities which are not prescriptive or exhaustive but intended as a guide to identify how everyone in TII can support the delivery of Sustainability Outcomes.

Roles	Responsibilities
Organisation Providing governance, structure, and oversight required to integrate sustainability and set us up for success	• Align goals and objectives to create a clear, consistent and transparent message on strategic direction • Set up support structures and governance for our people • Develop processes and systems which reinforce new ways of working, alongside the right skills and capabilities
Individuals Embedding sustainability into day-to-day behaviours and decisions	• Sustainability is a priority within decision-making • Collaborate with others and learn from each other’s experiences
Teams Creating shared accountability across divisions and projects	• Ensure tenders and frameworks align with TII’s SIP principles • Divisional Directors are accountable for sustainability within their roles • Sustainability related communication is shared within and across divisions
Subject Matter Experts Providing expertise across all divisions within TII, supported by expertise provided by our industry partners	• Ensure technical robustness of our sustainability solutions • Ensure compliance with policy requirements
Sustainability Leaders Providing valuable insight and direction into sustainability activities led by their divisions or their Steering Groups	• Act as the communications and key contact point on the Sustainability Portfolio for their division • Identify and work with divisional colleagues to support the delivery of sustainability activities and reporting • Share progress of relevant divisional sustainability activities as part of the Sustainability Leaders Forum • Highlight issues of importance or interest to the Sustainability Leaders Forum for awareness, guidance or support
TII Executive Team Members of TII’s Sustainability Assurance Board, supporting and directing TII’s sustainability activities	• Measure the impact of actions and activities to monitor progress • Provide strategic direction on communications and engagement, to share information across the organisation and key external stakeholders • Align TII’s broader strategy, vision and corporate values with sustainability aspirations • Coordinate with Human Resources (HR), Learning and Development (L&D) specialists and other technical experts to provide training and development opportunities
TII Board Collectively leading and directing TII’s activities	• Review and guide TII’s strategic direction and major action plans • Provide insight and guidance on projects, operations, risk management, annual budgets and business plans
Supply Chain, Consultants and Contractors Upholding the responsibility to design projects in a sustainable manner	• TII to ensure the SIP and TII’s sustainability commitments are widely communicated and embedded across the supply chain • Integrate TII’s sustainability principles into practice in projects

TII Sustainability Implementation Plan | Our Future| 2026

Embedding Sustainability

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Building Relationships and Collaborating: Seek opportunities to collaborate with colleagues from different teams, divisions, and external partners. Working together is crucial to achieving a sustainable future.

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Communicating the Benefits: Articulate the positive impacts of your sustainability efforts to others. Inspire and influence others to make positive contributions as well.

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Pausing to Consider Sustainable Action: Take a moment to consider the sustainability implications of your actions. This reflection saves time in the long run. Ask yourself how you can incorporate sustainability principles into your approach.

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Sharing Innovative Ideas: Contribute your innovative ideas for sustainability. Engage in conversations with colleagues to spark fresh ideas.

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Respectful Challenge and Support: Embrace new ideas and diverse perspectives, even if they challenge your current practices. Support colleagues being challenged by changing practices.

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Staying Informed: Engage with communications including updates on new processes, policies, and standards related to sustainability. Provide feedback and seek clarification to ensure a clear understanding within your divisions.

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Taking Action to Embed Sustainability in Processes, Programmes & Projects: Embed sustainability across all initiatives by integrating consistent standards, tools and governance at each stage of delivery, from planning through to operation.

TII Sustainability Implementation Plan | Our Future| 2026

Sustainability Outcomes

The Sustainability Principles act as a guide to steer TII activities. Sustainability Outcomes have been developed in accordance with Figure 9 to ensure we deliver on our commitments, representing the tangible results TII aims to achieve through our activities in response to national policy actions and our own sustainability priorities. The Sustainability Outcomes translate high‑level government objectives into measurable, deliverable activities which are embedded across TII programmes and projects. National Targets and Actions are mapped to SIP principles and consolidated into TII specific targets, and delivery is supported by clear metrics and KPIs, enabling TII to track progress and embed sustainable delivery across its activities, determining a Sustainability Outcome. Progress against the Sustainability Outcomes is being monitored on a quarterly basis, with further detail on current activities set out in the Appendix B.

Figure 9: The development process of Sustainability Outcomes, starting from the six Sustainability Principles

TII Sustainability Implementation Plan | Our Future| 2026