Mr. Hugh Creegan:

They are peak time only going into the city centre, south docklands, UCD and other different combinations. They do not require a change of service. The C route which comes from Lucan and Cellbridge has direct services without needing to interchange.

The C3 and C4 route extends past Lucan. The C spine does not stop at Lucan and there is no need to change buses - the branches continue to wherever their termination point is. There was also a suggestion of a delay on C buses going through Chapelizod village. The C route bypasses Chapelizod village.