基于等高线图的山区公路路线优化设计研究
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摘要
为减少道路交通事故,需要提高公路协调性,因此需要对现有公路进行优化设计。本文先对省道101龙泉山脉段山区公路进行实地考察,然后初步设计三种选线方案,利用层次分析方法选择一种最优方案;再基于Google Earth软件导出的等高线图对最优方案进行优化设计,优化过程中采用纬地CAD进行平纵横设计;最后基于运行速度进行路线的协调性评价,影响山区公路协调性调整的主要因素有横断面超高值、变坡点位置、纵坡坡度,在对山区公路协调性调整过程中发现有横断面超高值、纵坡坡度、变坡点位置对山区公路协调性调整的影响程度依次减小的规律。与《公路项目安全评价指南》标准相比较,该路线协调性向良好,说明该设计路线是符合要求的。
In order to reduce road traffic accidents,it is necessary to improve road coordination and therefore need to optimize the design of existing roads. In this paper,we first carry out field trips to the Longquan Mountain section of Provincial Highway 101,and then design three kinds of line selection schemes,and use the analytic hierarchy process to select an optimal scheme. The optimal scheme is based on the contour chart derived from Googl Eearth software Finally,the coordination factors of the route are evaluated based on the running speed. The main factors influencing the coordination of mountain road coordination are the high cross section,the slope position and the slope slope of the slope.,The degree of influence of the cross-section super-high value,the slope slope and the slope position on the coordination adjustment of the mountain road was found in the process of adjusting the coordination of the mountain road. Compared with the "Highway Project Safety Assessment Guide" standard,the route coordination is good,indicating that the design route is in line with the requirements.
In order to reduce road traffic accidents,it is necessary to improve road coordination and therefore need to optimize the design of existing roads. In this paper,we first carry out field trips to the Longquan Mountain section of Provincial Highway 101,and then design three kinds of line selection schemes,and use the analytic hierarchy process to select an optimal scheme. The optimal scheme is based on the contour chart derived from Googl Eearth software Finally,the coordination factors of the route are evaluated based on the running speed. The main factors influencing the coordination of mountain road coordination are the high cross section,the slope position and the slope slope of the slope.,The degree of influence of the cross-section super-high value,the slope slope and the slope position on the coordination adjustment of the mountain road was found in the process of adjusting the coordination of the mountain road. Compared with the "Highway Project Safety Assessment Guide" standard,the route coordination is good,indicating that the design route is in line with the requirements.
引文
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[2]Giannis Adamos,Eftihia Nathanail.Predicting the effectiveness of road safety campaigns through alternative research designs[J].Journal of Safety Research,2016,59:192-199.
[3]J J.Usabiaga,M·Castells,F·X·Martínez,A·Olcer.A Simulation Model for Road and Maritime Environmental Performance Assessment[J].Journal of Environmental Protection,2013,04(07):108-112.
[4]张洪波,岳建光.浅谈公路路线优化设计[J].青海交通科技,2014,(4):19-21.
[5]张生晓,张生霞.浅谈山区公路设计中应注意的问题[J].价值工程,2011,30(6):264-264.
[6]仲华中,陈永权.广西百色至靖西高速公路路线优化设计[J].水运工程,2014,(02):176-179.
[7]冯春强,祁海云,等.山区公路路线多目标优化设计[J].交通标准化,2014,42(11):55-57,61.
[8]张仁根,陈建荣,黄天元,徐天生.公路线形设计的运行车速安全性检验[J].中外公路,2005,(06):1-4.
[9]何佼龙,张新胜,等.层次分析法在道路路线方案比选优化中的应用[J].华东公路,2006,(04):42-45.
[10]JTG B01-2014,公路工程技术标准[S].
[11]JTG B01-2006,公路路线设计规范[S].
[12]杨少伟.道路勘测设计[M].北京:人民交通出版社,2014.
[13]许金良.公路CAD技术[M].北京:人民交通出版社,1999.