remains an ambition for NIR and IÉ. The line south of the border was upgraded to continuous welded rail in the 1990s, while NIR has also made track improvements to allow an increase in speed. Enterprise would require a minimum of seven trains to operate an hourly service – until 2013, IÉ had a significant number of stored Mark 3 rolling stock available, of which five sets were push-pull capable. However, all of IÉ's Mark 3 carriages were scrapped during 2013 and 2014. NIR also withdrew its "Gatwick" set in June 2009 and it has been preserved by the RPSI. The introduction of the 22000 Class could potentially be used to enhance the frequency of the Enterprise which has led to a surplus of locomotives that could be utilised. The major issue remains the capacity at , which is stretched. Plans have been mooted to transfer Enterprise's northern terminus from to Belfast Great Victoria Street, which is more centrally located and is co-located with Europa Buscentre, providing an integrated rail/bus journey to all parts of the island. Criticism In November 2007 the cross-border IBEC-CBI Joint Business Council, in a submission to the North/South Ministerial Council, stated that Enterprise was falling behind compared to the improvements of other international rail providers, with delays "often up to an hour" and serious reliability problems and an uncompetitive journey time against making the journey by road. With the faster road journey to Dublin and the Enterprise's unreliability and infrequency, it has faced a loss of revenue as passengers switch to much cheaper and faster alternatives. Gallery References External links "Iarnród Éireann" page on the Enterprise "Translink/Northern Ireland Railways" page on the Enterprise International named passenger trains Named passenger trains of the United Kingdom Named passenger trains of Ireland Great Northern Railway (Ireland) Railway services introduced in 1947