TII is a state agency under the aegis of the Department of Transport, working at both national and regional level, in partnership with Local Authorities regarding national roads and greenways, and the National Transport Authority (NTA) regarding light rail and metro .
TII was established through a merger of the National Roads Authority (NRA) and the Railway Procurement Agency (RPA) under the Roads Act 2015, and was set up to deliver and operate safe and efficient light rail and national road networks.
In 2021, TII was delegated additional functions in relation to active travel and greenways.
At TII we are building a more sustainable economy and a better quality of life for everyone. To learn more about our organisation and the valuable work that we do to keep people and goods moving safely and reliably every day, click on our information video below.
19/11/2025
12/11/2025
10/11/2025
05/11/2025
Transport Infrastructure Ireland (TII) is developing a Standard Document entitled PE-ENV-07006 Biodiversity Impact Assessment of National Road, Greenway and Active Travel Projects. This document will set out the required approach for Biodiversity Impact Assessment of National Road, Greenway and Active Travel Projects and will also specify requirements in respect of the use of its Biodiversity Metric. TII is engaging in industry and public consultation in respect of a draft of this document.
Click here for further details
In compliance with the RISM Directive (Article 5) and the Irish Government’s Road Safety Strategy (Phase 1 Action Plan 2021 to 2024 – Action 1), TII Road Safety have prepared a network-wide road safety assessment (NWA) for rural sections of Irish national primary roads. The purpose of NWA is to classify the road network into safety levels. Those sections with poor safety ratings will be prioritised for targeted road safety inspections and, where necessary, suitable interventions.
For more information on the NWA, click here
At approximately 7:00 PM on Tuesday, 19th August, Transport Infrastructure Ireland (TII) was alerted to a significant fire beneath George’s Dock Bridge in the IFSC, near Connolly Station. In response, Transdev activated its emergency procedures and immediately suspended Luas Red Line services in the affected area. Reconstruction efforts are now underway, with completion targeted for the end of November. Luas Red Line services between Connolly and The Point are expected to resume following the conclusion of these works.
TII’s strategic objectives include the continued operation and maintenance of existing transport network infrastructure.
The National Planning Framework is the Government’s strategic plan for shaping future growth and development.
