 In 1998 the market was liberalised and had one of the highest degrees of market openness in the EU according to the 2011 Rail Liberalisation Index, although the market share of ÖBB remains above 90% for passenger rail.Austrian network, out of the principal rail system, also counts some funiculars, rack railways and lot of heritage railways mainly derived from part of disused lines.Some secondary lines have a narrow gauge.