Safety a challenge as air traffic doubles Accident rate in Africa almost five times the worldwide average Associated Press New York Jul 29, 2014 if (!window.OX_ads) { OX_ads = []; } OX_ads.push({ "auid" : "417989" }); document.write(' '); More travelers are flying than ever before, creating a daunting challenge for airlines: keep passengers safe in an ever more crowded airspace.