本文選題：城市快速路 + 服務(wù)水平　； 參考：《交通運(yùn)輸工程學(xué)報(bào)》2014年05期

【摘要】：根據(jù)城市快速路的特性,將城市快速路分為基本路段、交織區(qū)和分合流區(qū)。運(yùn)用Greenshields模型計(jì)算自由流行程速度,通過雙線圈檢測器獲取地點(diǎn)速度并由此估算行程速度。對行程速度指數(shù)進(jìn)行右側(cè)均值和均方差的一致性檢驗(yàn),將服務(wù)水平量化,提出了基于行程速度指數(shù)的城市快速路服務(wù)水平評價方法,并在西安市南二環(huán)某路段上進(jìn)行實(shí)例驗(yàn)證。評價結(jié)果表明:當(dāng)自由流、高峰時段、平峰時段的行程速度分別為82.514、47.825、67.930km·h-1時,高峰時段行程速度指數(shù)的均值和均方差檢驗(yàn)結(jié)果分別為7.206、8.482,城市快速路服務(wù)水平為2.667,為Ⅲ級;平峰時段行程速度指數(shù)的均值和均方差檢驗(yàn)結(jié)果分別為6.408、8.960,城市快速路服務(wù)水平為4.083,為Ⅱ級。計(jì)算結(jié)果與實(shí)際情況相符,提出的方法有效。
[Abstract]:According to the characteristics of urban expressway, the urban expressway is divided into basic section, intertwined area and sub-confluence area. The free range velocity is calculated by using Greenshields model, and the location velocity is obtained by double coil detector and the travel velocity is estimated. The right mean value and mean square deviation of travel speed index are tested and the service level is quantified. The evaluation method of service level of urban expressway based on travel speed index is put forward and verified by an example on a section of South second Ring Road in Xi'an. The results show that when the travel speed of free flow, peak period and flat peak period are 82.514 ~ 47.825 ~ 67.930km / h ~ (-1), the mean value and mean deviation of travel velocity index in peak period are 7.206 ~ 8.482and the service level of urban expressway is 2.667. The mean and mean-variance test results of travel speed index in peak period are 6.408 and 8.960respectively, and the service level of urban expressway is 4.083, which is grade 鈪，

本文編號：1827643