Parageorgiou M, Kotsiaios A. Freeway ramp metering: An overview[J]. IEEE Trans on Intelligent Transportation Systems, 2002, 3(4): 271-281. [2] Cremer M, Papageorgiou M. Parameter identification for a traffic flow model[J]. Automatica, 1981, 17(6): 837-843. [3] Grewail M S, Payne H J. Identification of parameters in a freeway traffic model[J]. IEEE Trans on Systems, Man, and Cybernetics, 1976, 6(3): 176-286. [4] Lighthill M J, Whitham G B. On the kinematic waves II: A theory of traffic flow on long crowded roads[C]. Proc of the Royal Society A: Mathematical and Physicai Sciences. London, 1955: 317-345. [5] 侯忠生, 金尚泰, 赵明. 宏观交通流模型参数的迭代学习 辨识方法[J]. 自动化学报, 2008, 34(1): 65-70. (Hou Z S, Jin S T, Zhao M. Iterative learning identification method for the macroscopic traffic flow model[J]. Acta Automatica Sinica, 2008, 34(1): 65-70.) [6] 许静. 基于神经网络最优化的交通控制技术[D]. 北京: 中国科学院自动化所研究院, 2007: 55-56. (Xu J. Traffic control based on neural optimization[D]. Beijing: Institute of Automation, Chinese Academy of Sciences, 2007: 55-56.) [7] Bai X R, Zhao D B, Yi J Q, et al. Ramp metering based on on-line ADHDP(??) controller[C]. Proc of 2008 Int Joint Conf on Neural Networks (IJCNN 2008). Hongkong, 2008: 1847-1852. [8] Xu J, YuWS,Wang F Y. Ramp metering based on adaptive critic designs[C]. Proc 9th Int IEEE Conf on Intelligent Transportation Systems. Toronto, 2006: 1531-1536. [9] 王新洲. 非线性模型参数估计理论与应用[M]. 武汉: 武 汉大学出版社, 2004: 52-73. (Wang X Z, Estimate of non-linear modeling parameters and application[M]. Wuhan: Wuhan University Press, 2002: 52-73.) [10] 么健石, 侯祥林, 徐心和. 基于动态设计变量优化算法 的非线性模型参数估计[J]. 东北大学学报: 自然科学版, 2004, 25(2): 106-109. (Yao J S, Hou X L, Xu X H. Estimate of non-linear modeling parameters based on optimization algorithm of dynamic design variables[J]. J of Northeastern University: Natural Science, 2004, 25(2): 106-109.) [11] Papageorgiou M, Blosseville J M, Hadj S H. Modeling and real time control on traffic flow on the southern part of boulevard peripherique in Paris (Part I, Part II)[J]. Transportation Research Part A, 1990, 24(5): 345-370. [12] Liu X, Balakrishnan S N. Convergence analysis of adaptive critic based optimal control[C]. Proc of American Control Conf. Chicago, 2000: 1929-1933.