epa01830272 A aerobus prepares to take off while another aerobus lands at Changsha airport in Changsha city, capital of Hunan province, China on 20 August 2009. Reported by state media on 20 August , China's regional airlines account for just five percent of the total civil aviation market. It's difficult for residents in many small and medium-sized cities in China to enjoy convenient travel by air. But China's regional airline market has bright future,according to state media reported. EPA/WU HONG