基于灰色馬爾科夫模型的道路施工期交通量預(yù)測(cè)
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摘 要:針對(duì)城市道路施工期,交通量歷史數(shù)據(jù)少的特點(diǎn),建立灰色馬爾科夫交通預(yù)測(cè)模型,并以崇川路由西向東斷面的交通量數(shù)據(jù)為例進(jìn)行研究。結(jié)果表明,此模型相比于傳統(tǒng)的GM1,1模型預(yù)測(cè)交通量具有更高的預(yù)測(cè)精準(zhǔn)度,能夠更好地研究道路施工期交通量的發(fā)展趨勢(shì)。
關(guān)鍵詞:交通量預(yù)測(cè);灰色馬爾科夫模型;道路施工期
中圖分類號(hào):U491.1 文獻(xiàn)標(biāo)識(shí)碼:A
Abstract: In view of the lack of historical data of urban road traffic volume during construction period, the Grey-Markov prediction model is established. Furthermore, traffic volume of Chongchuan road from west to east is applied. The results reveal that the model has higher accuracy in predicting traffic volume compared with traditional GM1,1 model, which can better study the volume trend during road construction period.
Key words: traffic forecast; Grey-Markov model; road construction period
0 引 言
道路施工對(duì)周邊交通的影響較大[1],而其中交通量預(yù)測(cè)是道路建設(shè)項(xiàng)目可行性研究工作的重要組成部分,它不僅是分析建設(shè)項(xiàng)目的必要性和可行性的基礎(chǔ),同時(shí)也是確定道路建設(shè)項(xiàng)目技術(shù)等級(jí)、工程規(guī)模及經(jīng)濟(jì)評(píng)價(jià)的主要依據(jù)之一。(剩余3279字)