(Reuters) – A.P. Moller-Maersk will use rail transport to avoid the drought-hit Panama Canal, the Danish shipping giant said late on Wednesday, as low water levels have caused one of the world’s main maritime trade routes to reduce crossings. The Panama Canal Authority (ACP) has reduced the amount and weight of vessels passing through based on current and projected water levels in Gatun Lake, the rainfall-fed principal reservoir that floats ships through the Panama Canal’s lock system, Maersk said. “The vessels that utilised the Panama Canal before will now omit the Panama Canal and use a “lan…