人群太过拥挤了。
当工作人员开始检票时，等待检票的人群甚至将栅栏撞开。[{'character': '当', 'pinyin': 'dang1', 'highest pitch': 9.04, 'lowest pitch': 8.48, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '工', 'pinyin': 'gong1', 'highest pitch': 10.47, 'lowest pitch': 8.48, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '作', 'pinyin': 'zuo4', 'highest pitch': 10.28, 'lowest pitch': 9.05, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '人', 'pinyin': 'ren2', 'highest pitch': 9.05, 'lowest pitch': 7.87, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '员', 'pinyin': 'van2', 'highest pitch': 8.46, 'lowest pitch': 6.91, 'duration': 0.25, 'prosody hierarchy': '#1'}, {'character': '开', 'pinyin': 'kai1', 'highest pitch': 9.63, 'lowest pitch': 8.3, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '始', 'pinyin': 'shiii2', 'highest pitch': 9.35, 'lowest pitch': 8.6, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '检', 'pinyin': 'jian3', 'highest pitch': 8.64, 'lowest pitch': 4.78, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '票', 'pinyin': 'piao4', 'highest pitch': 10.13, 'lowest pitch': 8.44, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '时', 'pinyin': 'shiii2', 'highest pitch': 9.35, 'lowest pitch': 5.77, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.32}, {'character': '等', 'pinyin': 'deng3', 'highest pitch': 8.38, 'lowest pitch': 6.84, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '待', 'pinyin': 'dai4', 'highest pitch': 10.72, 'lowest pitch': 7.74, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '检', 'pinyin': 'jian3', 'highest pitch': 8.64, 'lowest pitch': 5.14, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '票', 'pinyin': 'piao4', 'highest pitch': 10.13, 'lowest pitch': 5.44, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 6.26, 'lowest pitch': 5.57, 'duration': 0.07, 'prosody hierarchy': '#1'}, {'character': '人', 'pinyin': 'ren2', 'highest pitch': 9.05, 'lowest pitch': 5.53, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '群', 'pinyin': 'qvn2', 'highest pitch': 6.88, 'lowest pitch': 5.51, 'duration': 0.32, 'prosody hierarchy': '#2'}, {'character': '甚', 'pinyin': 'shen4', 'highest pitch': 8.32, 'lowest pitch': 6.26, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '至', 'pinyin': 'zhiii4', 'highest pitch': 6.74, 'lowest pitch': 6.19, 'duration': 0.11, 'prosody hierarchy': 'null'}, {'character': '将', 'pinyin': 'jiang1', 'highest pitch': 8.59, 'lowest pitch': 6.19, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '栅', 'pinyin': 'zha4', 'highest pitch': 9.82, 'lowest pitch': 8.39, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '栏', 'pinyin': 'lan5', 'highest pitch': 8.39, 'lowest pitch': 5.31, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '撞', 'pinyin': 'zhuang4', 'highest pitch': 8.45, 'lowest pitch': 5.93, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '开', 'pinyin': 'kai1', 'highest pitch': 9.63, 'lowest pitch': 8.41, 'duration': 0.33, 'prosody hierarchy': '#4'}]