【作者】 戴施华；

【导师】 邵家玉；

【作者基本信息】 东南大学 ， 控制理论与控制工程， 2006， 硕士

【摘要】 近年来,随着我国高速公路建设的快速发展,高速公路的网络架构日趋形成。为了充分发挥高速公路路网的整体效益,提高路网运营管理和服务水平,高速公路的监控正面临更高的要求和挑战。本文通过研究高速公路系统控制方法及路网的交通流模型,为高速公路路网实施联网监控提供理论基础与技术方案。主要研究内容与成果如下:1.高速公路短时交通流预测。通过对常用的短时交通流预测方法的深入研究和比较,本文运用卡尔曼滤波理论建立了短时交通流预测模型,并且利用实测数据对预测模型进行实例验证,证实了所建模型的有效性。2.高速公路系统控制方法的研究。在研究各种高速公路系统控制方法的基础上,对入口匝道动态调节控制和主线可变速度控制进行了详细研究,建立了可变速度控制模型和算法,并用仿真计算验证了该算法和模型的有效性。3.高速公路路网交通流模型的建立。通过对前期制定的三种高速公路路网建模方案的深入研究、分析和比较,本文以METANET仿真工具为基础,建立了具有中国特色的区域高速公路路网交通流模型;论文将单条高速公路模型和METANET模型进行比较,说明各自适用场合,为实现高速公路路网交通控制提供交通流模型。同时,论文创造性地对原始模型进行了扩展:增加对出口匝道上交通流处于阻塞状态下的描述以及可变速度控制对交通流的影响的考虑,使其更符合实际情况,并且选取禄口机场高速公路为对象,对模型的参数进行辨识。本文以“江苏省高速公路联网监控系统的监控与接口技术的研究”科研项目为研究背景,研究工作既具有很强的实际工程背景,又具有重要的理论价值,填补了国内高速公路路网交通流建模领域的空白。更多还原

【Abstract】 In recent years, along with the rapid development of freeway in our country, the freeway network is developing gradually. At the same time, in order to give full play to the overall efficiency of freeway network and raise the level of operation and service, freeway management has to be faced with higher requirement and greater challenge than before. Through the study on control measures and the model of freeway network, this dissertation provides scientific bases and technical strategies for the control of freeway network. The main content and achievements of this dissertation are:First, prediction of short-time traffic flow is studied in this dissertation. Through studying and comparing common methods about prediction of short-time traffic flow deeply, a prediction model for short-time traffic volume on the basis of Kalman Filtering Theory is made. Furthermore, the validity of this prediction model is approved by using actual data.Second, popular control measures of freeway are studied. In this part, dynamic on-ramp metering and variable speed limits are studied deeply, which are the most two efficient control measures, and the control model and algorithm for variable speed limits which are evaluated by simulation algorithm, are made.Third, a traffic flow model of freeway network which has Chinese characteristics on the basis of the simulation tool METANET is studied in this dissertation, through deep research, analysis and comparison of three decisions about making a model for freeway network proposed at the beginning. And the model of single freeway and METANET model of freeway network are compared to illustrate their occasions they fit, which provides traffic flow model to realize control of freeway network. Further, two extensions on the basic METANET model about considering the description of behavior of the off-ramp outflow when blocking occurs and the influence of variable speed limits are made which make the model fit practical situation more and the parameters of the model using Nanjing Lukou Airport Freeway as object are identified in this paper creatively.This dissertation is supported by the scientific research project: Research on Control of Monitoring System of Freeway Network and Interface Technology of Jiangsu Province, and the research has not only strong practical engineering background but also very important theoretical value, and supplies a gap in the field of modeling for the traffic flow of freeway network in China.更多还原