Photo taken on Nov. 1, 2016 shows passengers on a "dangdang" bus in Shijiazhuang, capital of north China's Hebei Province. A total of 18 "dangdang" buses started operating in Shijiazhuang on Tuesday. These buses are modelled after the old-fashioned trams, known as "dangdang" buses, after the sound of the bells drivers used instead of horns. (Xinhua/Wang Xiao)
