Although most of the lines involved here are buses, in many ways this arrangement reminds me for some reason of the map for the Berlin U/S-Bahn network, which provides comprehensive coverage of the city. Berlin, in my opinion, has done a very good job of creating a cohesive network from the various bits and pieces left over from the time when the city was divided. The sheer scale
of that city - in terms of area rather than population - and the fact that it effectively lost half a century of coordinated development time, makes its current transport network pretty impressive, in my opinion a greater achievement than the much tighter transport networks in (admittedly smaller) German cities like Munich and Frankfurt.
Dublin, of course, has also lost many years of development time, mainly through initial poverty followed (in the wealthy years) by poor planning, sloth and waste.
Fair play to the person/people who produced this. Overall, it seems like a very good plan.
(But there's clearly still work to be done: for example, Merrion Square to the RDS, a fairly popular journey, would require two changes (it can currently be done directly):eek:)