While the Road Traffic Act 2004 sets default speed limits for various categories of roads, elected members of local authorities, have statutory responsibility for deciding on and making appropriate Special Speed Limit bye-laws for roads within their administrative area, and in the case of national roads, subject to the consent of Transport Infrastructure Ireland (TII).
To assist local authorities in the application of Special Speed Limits, my Department's updated Guidelines for Setting and Managing Speed Limits in Ireland, which is available to all local authorities, reiterates the statutory responsibilities of elected members in relation to the making of such Special Speed Limit bye-laws, subject to following Department Guidelines.
In the case of the junctions referred to in the Deputy's question, it is a matter for Limerick City and County Council, in conjunction with TII, to consider the various options for addressing any traffic or safety matters raised by the Deputy.
In addition, any decision as to whether the introduction of Special Speed Limit by-laws for these junctions is an appropriate solution is a matter for the Council in conjunction with TII. Responsibility for making Special Speed Limit bye-laws rests with Limerick City and County Council and is subject to the prior written consent of TII in the case of all national roads.