《2021年(nian)度(du)中(zhong)國主(zhu)要城(cheng)市(shi)交(jiao)通(tong)(tong)(tong)分(fen)析報(bao)(bao)告》由高(gao)德地(di)圖聯合(he)(he)(he)“國家信(xin)息中(zhong)心(xin)大(da)數據發展部”、“清華大(da)學交(jiao)通(tong)(tong)(tong)研究(jiu)所”、“同(tong)濟大(da)學智能交(jiao)通(tong)(tong)(tong)運輸系(xi)統（ITS）研究(jiu)中(zhong)心(xin)”、“未來交(jiao)通(tong)(tong)(tong)與城(cheng)市(shi)計(ji)算聯合(he)(he)(he)實驗室”、“高(gao)德未來交(jiao)通(tong)(tong)(tong)研究(jiu)中(zhong)心(xin)” 等機構共同(tong)聯合(he)(he)(he)發布。該(gai)報(bao)(bao)告是(shi)基(ji)于高(gao)德超6.3億月活躍用戶和交(jiao)通(tong)(tong)(tong)行業浮動車數據，通(tong)(tong)(tong)過(guo)大(da)數據挖掘(jue)技(ji)術(shu)結合(he)(he)(he)交(jiao)通(tong)(tong)(tong)算法(fa)及(ji)交(jiao)通(tong)(tong)(tong)理論編制，報(bao)(bao)告中(zhong)地(di)面道(dao)(dao)路(lu)交(jiao)通(tong)(tong)(tong)通(tong)(tong)(tong)行時(shi)(shi)間(jian)計(ji)算方(fang)法(fa)，是(shi)考(kao)慮融合(he)(he)(he)道(dao)(dao)路(lu)交(jiao)叉口延誤時(shi)(shi)間(jian)（即信(xin)號燈(deng)等待(dai)時(shi)(shi)間(jian)），從時(shi)(shi)間(jian)、空(kong)間(jian)、效率三個維度(du)客觀、綜合(he)(he)(he)地(di)反映了城(cheng)市(shi)道(dao)(dao)路(lu)交(jiao)通(tong)(tong)(tong)健康狀(zhuang)況(kuang)并提(ti)出診(zhen)斷(duan)方(fang)案的(de)研究(jiu)。