《2021年(nian)度(du)中(zhong)國主要城(cheng)市交(jiao)(jiao)(jiao)通(tong)分(fen)析報(bao)(bao)告(gao)》由(you)高(gao)德(de)地(di)圖聯合(he)“國家(jia)信息(xi)中(zhong)心大(da)數(shu)據發展部”、“清華大(da)學交(jiao)(jiao)(jiao)通(tong)研究所(suo)”、“同(tong)(tong)濟大(da)學智能交(jiao)(jiao)(jiao)通(tong)運輸系(xi)統（ITS）研究中(zhong)心”、“未來交(jiao)(jiao)(jiao)通(tong)與城(cheng)市計算(suan)(suan)聯合(he)實(shi)驗室”、“高(gao)德(de)未來交(jiao)(jiao)(jiao)通(tong)研究中(zhong)心” 等(deng)機構共同(tong)(tong)聯合(he)發布。該報(bao)(bao)告(gao)是基于高(gao)德(de)超6.3億(yi)月活(huo)躍用戶(hu)和交(jiao)(jiao)(jiao)通(tong)行業浮(fu)動車數(shu)據，通(tong)過(guo)大(da)數(shu)據挖(wa)掘技術結合(he)交(jiao)(jiao)(jiao)通(tong)算(suan)(suan)法(fa)及交(jiao)(jiao)(jiao)通(tong)理論編制，報(bao)(bao)告(gao)中(zhong)地(di)面道(dao)路(lu)交(jiao)(jiao)(jiao)通(tong)通(tong)行時(shi)間(jian)(jian)計算(suan)(suan)方法(fa)，是考(kao)慮融合(he)道(dao)路(lu)交(jiao)(jiao)(jiao)叉口延(yan)誤時(shi)間(jian)(jian)（即信號燈等(deng)待時(shi)間(jian)(jian)），從時(shi)間(jian)(jian)、空間(jian)(jian)、效率三個維度(du)客觀、綜合(he)地(di)反映了城(cheng)市道(dao)路(lu)交(jiao)(jiao)(jiao)通(tong)健康狀(zhuang)況并提出診斷方案的研究。