本文選題：交通規(guī)劃　切入點(diǎn)：匝道間距比例　出處：《科學(xué)技術(shù)與工程》2016年36期 　論文類(lèi)型：期刊論文

【摘要】：城市快速路匝道間距設(shè)計(jì)是路線(xiàn)設(shè)計(jì)的重要內(nèi)容,匝道間距大小和匝道數(shù)量對(duì)快速路交通流有決定性的影響。當(dāng)城市快速路處于不間斷大交通流量時(shí),車(chē)流呈現(xiàn)出較為明顯的波動(dòng)現(xiàn)象。根據(jù)城市快速路交通流的這一特點(diǎn),應(yīng)用車(chē)流波理論,分析了上下匝道間合流區(qū)和分流區(qū)的車(chē)流波特點(diǎn),進(jìn)一步建立了出口-入口組合型匝道間距比例數(shù)學(xué)模型。認(rèn)為快速路匝道設(shè)計(jì)不但要考慮間距大小,相鄰匝道作為一個(gè)整體,還應(yīng)研究相互之間的影響。實(shí)例表明,當(dāng)匝道間距比例不能滿(mǎn)足數(shù)學(xué)模型時(shí),快速路容易發(fā)生交通擁堵,服務(wù)水平較低,抗干擾能力較差。
[Abstract]:The design of urban expressway ramp spacing is an important part of route design. The size of ramp spacing and the number of ramps have a decisive effect on the traffic flow of expressway. According to the characteristics of the traffic flow on the urban expressway, the characteristics of the traffic flow in the confluence zone and the shunt area between the upper and lower ramps are analyzed by using the theory of the traffic flow wave. Furthermore, a mathematical model of the proportion of ramp spacing between exits and entrances is established. It is considered that the design of freeway ramps should not only consider the size of the spacing, but also study the influence of each other on the adjacent ramps as a whole. When the ratio of ramp spacing can not satisfy the mathematical model, the expressway is prone to traffic congestion, low service level and poor anti-jamming ability.
【作者單位】： 浙江警察學(xué)院交通管理工程系;
【分類(lèi)號(hào)】：U491

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本文編號(hào)：1576175