A group of residents from Griffith Avenue has sent the National Transport Authority a letter questioning its legality.
The Bus Connects project in Dublin has been accused of lacking transparency in its public consultation process.
The Griffith Avenue and district residents association claims its rights under EU law in regard to public consultation were not honoured by Bus Connects when it drafted its bus corridor plans.
According to today's Herald, The group says that, by holding private consultations with selected groups when updating them on bus corridor plans, the NTA is breaching EU directives on public participation.
In particular the group says the planned bus corridor on the Ballymun to city centre route may not be necessary at all because the planned MetroLink essentially runs along the same route.