基于液体流阻推导的多因素影响下BPR函数改进研究
|
摘要
为了探究更符合实际的城市道路交通路阻计算函数,通过将相对拥挤的城市道路中的交通流量(转换成对应当量的机动车流量)产生的交通阻抗类比于流体力学中液体在特定条件下的管道设施中,按照一定规律流动时产生的流动阻力,并以此为基础对广泛使用的BPR函数进行改进。该函数主要涉及:服务水平、车流密度、车辆组成因素,在此基础上构建出完整函数并通过实际数据标定系数。最后以西安南二环处的交通量实测数据为例分析该函数的准确性与可靠性。结果表明,针对我国城市道路计算道路阻抗时,必须考虑多个因素的影响,改进函数的结果优于BPR函数。
To explore more in line with the actual resistance calculation function of urban road traffic road, by a relative of the urban road traffic flow(conversion shall be the amount of motor vehicle traffic) in pairs produce traffic impedance analogy in fluid mechanics of liquid under certain conditions of pipeline facilities, according to certain rule flow when the flow resistance, and on this basis to improve the widespread use of BPR function. This function involves the following main factors: service level, traffic density and vehicle composition. On this basis, a complete formula is constructed and the calibration coefficient is determined by the actual data.Finally, an example is given to analyze the accuracy and reliability of the formula and it is shown that influence of several factor must be taken into account for the calculation of the road impedance of the road in our city. The result of the improvement function is better than that of BPR function.
To explore more in line with the actual resistance calculation function of urban road traffic road, by a relative of the urban road traffic flow(conversion shall be the amount of motor vehicle traffic) in pairs produce traffic impedance analogy in fluid mechanics of liquid under certain conditions of pipeline facilities, according to certain rule flow when the flow resistance, and on this basis to improve the widespread use of BPR function. This function involves the following main factors: service level, traffic density and vehicle composition. On this basis, a complete formula is constructed and the calibration coefficient is determined by the actual data.Finally, an example is given to analyze the accuracy and reliability of the formula and it is shown that influence of several factor must be taken into account for the calculation of the road impedance of the road in our city. The result of the improvement function is better than that of BPR function.
引文
[1] 李巧茹,陈明明,陈亮.基于复杂网络的交通阻抗模型研究[J].科学技术与工程,2017,17(1):115-119.
[2] 周荣贵,王炜,刘晓明.公路通行能力研究的装备与技术:中国,CG2005015639[P].2005年.
[3] 王素欣,王雷震,高利,等.BPR路阻函数的改进研究[J].武汉理工大学学报(交通科学与工程版),2009,33(3):446-449.
[4] 四兵锋,钟鸣,高自友.城市混合交通条件下路段阻抗函数的研究[J].交通运输系统工程与信息,2008(1):68-73.
[5] 查伟雄,王世彬.城市交通混合流非饱和状态下阻抗函数研究[J].公路交通科技,2010,27(9):100-104.
[6] 何南,刘宁,赵胜川.基于BPR函数的道路阻抗研究[J].南京工程学院学报(自然科学版),2013,11(1):6-11.
[7] 张玲瑞,杨扬.货运OD矩阵反推中改进的BPR道路阻抗函数研究[J].公路交通科技,2016,33(7):125-129,144.
[8] 孟维伟,段妍,屈芳.考虑行程时间可靠性的阻抗函数及其应用[J].公路与汽运,2015(1):40-44.
[9] 骆伟,吴克晴.基于改进的阻抗函数下的混合交通均衡模型[J].华东交通大学学报,2013,30(4):46-53.
[10] 王元庆,周伟,吕连恩.道路阻抗函数理论与应用研究[J].公路交通科技,2004(9):82-85.
[11] 戴继锋,赵延峰,张国华,等.机动车流路段阻抗函数参数标定与校核方法研究[J].城市交通,2007(1):41-45,55.
[12] 王树盛,黄卫,陆振波.路阻函数关系式推导及其拟合分析研究[J].公路交通科技,2006(4):107-110.
[13] 郑远,杜豫川,孙立军.美国联邦公路局路阻函数探讨[J].交通与运输(学术版),2007(1):24-26.
[14] SPIESSH.Conical volume-delayfunctions[J].Transportation Science,1990(24):153-158.
[15] AKCELIK R.A new look at Davidson′s travel time function[J].Traffic Engineering and Control,1978,19(10):459-463.
[16] DAVIDSON K B.The theoretical basis of a flow-travel time relationship for use in transportation planning[J].Australian Road Research,1978(8):32-35.
[2] 周荣贵,王炜,刘晓明.公路通行能力研究的装备与技术:中国,CG2005015639[P].2005年.
[3] 王素欣,王雷震,高利,等.BPR路阻函数的改进研究[J].武汉理工大学学报(交通科学与工程版),2009,33(3):446-449.
[4] 四兵锋,钟鸣,高自友.城市混合交通条件下路段阻抗函数的研究[J].交通运输系统工程与信息,2008(1):68-73.
[5] 查伟雄,王世彬.城市交通混合流非饱和状态下阻抗函数研究[J].公路交通科技,2010,27(9):100-104.
[6] 何南,刘宁,赵胜川.基于BPR函数的道路阻抗研究[J].南京工程学院学报(自然科学版),2013,11(1):6-11.
[7] 张玲瑞,杨扬.货运OD矩阵反推中改进的BPR道路阻抗函数研究[J].公路交通科技,2016,33(7):125-129,144.
[8] 孟维伟,段妍,屈芳.考虑行程时间可靠性的阻抗函数及其应用[J].公路与汽运,2015(1):40-44.
[9] 骆伟,吴克晴.基于改进的阻抗函数下的混合交通均衡模型[J].华东交通大学学报,2013,30(4):46-53.
[10] 王元庆,周伟,吕连恩.道路阻抗函数理论与应用研究[J].公路交通科技,2004(9):82-85.
[11] 戴继锋,赵延峰,张国华,等.机动车流路段阻抗函数参数标定与校核方法研究[J].城市交通,2007(1):41-45,55.
[12] 王树盛,黄卫,陆振波.路阻函数关系式推导及其拟合分析研究[J].公路交通科技,2006(4):107-110.
[13] 郑远,杜豫川,孙立军.美国联邦公路局路阻函数探讨[J].交通与运输(学术版),2007(1):24-26.
[14] SPIESSH.Conical volume-delayfunctions[J].Transportation Science,1990(24):153-158.
[15] AKCELIK R.A new look at Davidson′s travel time function[J].Traffic Engineering and Control,1978,19(10):459-463.
[16] DAVIDSON K B.The theoretical basis of a flow-travel time relationship for use in transportation planning[J].Australian Road Research,1978(8):32-35.