The Pakistan Railways, under the Ministry of Railways (MoR), operates the railroad system. From 1947 until the 1970s the train system was the primary means of transport until the nationwide constructions of the national highways and the economic boom of the automotive industry. Beginning in the 1990s there was a marked shift in traffic from rail to highways; dependence grew on roads after the introduction of vehicles in the country. Now the railway's share of inland traffic is below 8% for passengers and 4% for freight traffic. As personal transportation began to be dominated by the automobile, total rail track decreased from  in 1990–91 to  in 2011. Pakistan expects to use the rail service to boost foreign trade with China, Iran, and Turkey.