The Falkland Islands currently has three primary means of transportation - road, sea and air. However, in 1946, when Sir Miles Clifford arrived as governor, there were no air services, no roads outside Stanley and an indifferent sea service. Sir Miles was instrumental in starting the Falkland Islands Government Air Service in December 1948. The inaugural flight involved a mercy flight from North Arm Settlement to Stanley to bring a girl with peritonitis to life-saving medical help in Stanley. There are now an international airport, a domestic airport, a number of airstrips, a growing road network and a much-improved ferry service between the two main islands. In 1982, the Falkland Islands had no roads outside Stanley, only tracks. By 2007, the Falkland Islands had a road network of 488 miles (786 km) with a further roads planned for construction link to all occupied mainland settlements by 2013. In 2012, the Falkland Islands Government classified the 536 miles (862 km) road network - East Falkland 304 miles (489 km) and West Falkland 232 miles (373 km) - into "A" roads, "B" roads and "C" roads for purposes of Highways Asset Management Plan. The "A" roads are the 75 miles (121 km) link between Stanley and New Haven (East Falkland) and the 48 miles (78 km) link between Port Howard and Fox Bay (West Falkland). All roads within Stanley are asphalted as are the ones at Mount Pleasant Airport (MPA). The road between Stanley and MPA is mostly gravel all-weather roads (as like the rest of the roads in the islands) with some short asphalted sections. The road between Stanley and MPA has a large trench on either side, which will ground any vehicle driving into it. These trenches were allegedly dug deeper than they needed to be as annual rainfall was taken as a number for the monthly rainfall.