I'm baffled by how three motorways are used in Ireland. It seems that most drivers are adverse to using the inside lane closest to the hard shoulder and are happy to potter down the middle lane oblivious to the vacant lane to their left hand side.
This basically reduces the road capacity by a third since undertaking is not legal and backs up traffic that can only pass in the third lane.
Having spent over two years in traffic jams around Naas during the widening works to construct three lanes does does this driving practice frustrate anyone else or is it just me?