《2021年度(du)(du)中(zhong)國(guo)主要城市交通(tong)(tong)(tong)分(fen)析報告》由高(gao)德(de)地(di)圖聯(lian)合(he)(he)“國(guo)家信(xin)息(xi)中(zhong)心大數據發展(zhan)部”、“清華(hua)大學(xue)交通(tong)(tong)(tong)研究所”、“同濟大學(xue)智能(neng)交通(tong)(tong)(tong)運輸系統(tong)（ITS）研究中(zhong)心”、“未來(lai)交通(tong)(tong)(tong)與城市計(ji)算聯(lian)合(he)(he)實驗室(shi)”、“高(gao)德(de)未來(lai)交通(tong)(tong)(tong)研究中(zhong)心” 等(deng)機構共同聯(lian)合(he)(he)發布(bu)。該(gai)報告是基(ji)于高(gao)德(de)超6.3億(yi)月(yue)活(huo)躍(yue)用(yong)戶(hu)和交通(tong)(tong)(tong)行(xing)業浮動(dong)車數據，通(tong)(tong)(tong)過大數據挖掘技術結合(he)(he)交通(tong)(tong)(tong)算法(fa)及交通(tong)(tong)(tong)理論編制(zhi)，報告中(zhong)地(di)面(mian)道路交通(tong)(tong)(tong)通(tong)(tong)(tong)行(xing)時間計(ji)算方法(fa)，是考慮融合(he)(he)道路交叉口延誤(wu)時間（即信(xin)號燈等(deng)待時間），從時間、空間、效率(lv)三個(ge)維度(du)(du)客(ke)觀、綜(zong)合(he)(he)地(di)反映了城市道路交通(tong)(tong)(tong)健康狀況并提出診斷方案的研究。