Metro South West Group asked Transport Expert Professor Austin Smyth to give a detailed report regarding the flawed NTA feasibility study.  This study carried out by Jacobs International was  on the feasibility of Metro from City Centre to Knocklyon.

The main points of Professor Smyths lenghty report of over 100 pages are summarised below.

  • South West Dublin suffers from major deficits in public transport and road infrastructure.
  • The NTA/Jacobs Metro to Knocklyon Feasibility Study  is not quality assured, is inadequate and somewhat superficial.
  • The dismissal of alternatives such as metro, BRT and light rail was not adequately assessed.
  • The sites for stations chosen in the Feasibility Study are affected by small populations served, low density and relatively few trip producers and attractors and afford poor local accessibility including poor bus connectivity.
  • There are station options in South West Dublin on routes called Option C and D (both to Tallaght) which offer considerably greater potential passenger demand.
  • The Metro to Knocklyon Feasibility Study is not consistent with the methodology used in assessing the Metrolink Preliminary Business Case, NTA, February 2021.  If it were, the critical Benefit to Cost ratio would increase by 0.2 to 0.4 above the reported figure of 0.8..
  • Further, if the final destination were Tallaght, the Benefit to Cost ratio would be in the range 1.6 to 2.2 (vs 0.8 reported in the Metro to Knocklyon Feasibility Study), The higher Benefit to Cost Ratios hold even in the absence of growth rates anticipated for Tallaght in its local development plan.

A copy of the full report is available on this link:

This report cost nearly 28000€  . Any support towards the cost of this report is appreciated and can be done through our GoFundme Link.