Motorway economics are way out of line
Toll revenue is expected to be €13 million a year. Subtracting the maintenance cost of €20,000/km/lane/year (obtained from an FOI request), which comes to €7m a year and an estimated cost of €2m for lighting, policing and administration, this leaves a net revenue of just €4m, or 0.4%/year, not to mention a proportionate €50m a year for the cost of accidents borne by the state (RSA figures), or the pollution costs to public health and global warming which run into several hundred million euro each year.
The money for the construction would have had to have been borrowed at 5% to 10% and spent long before revenue from tolls starting accruing