中国物理B ›› 2014, Vol. 23 ›› Issue (3): 30507-030507.doi: 10.1088/1674-1056/23/3/030507
程荣军a, 韩祥临b, 卢兆明c, 葛红霞d
Cheng Rong-Jun (程荣军)a, Han Xiang-Lin (韩祥临)b, Lo Siu-Ming (卢兆明)c, Ge Hong-Xia (葛红霞)d
摘要: In light of previous work [Phys. Rev. E 60 4000 (1999)], a modified coupled-map car-following model is proposed by considering the headways of two successive vehicles in front of a considered vehicle described by the optimal velocity function. The non-jam conditions are given on the basis of control theory. Through simulation, we find that our model can exhibit a better effect as p=0.65, which is a parameter in the optimal velocity function. The control scheme, which was proposed by Zhao and Gao, is introduced into the modified model and the feedback gain range is determined. In addition, a modified control method is applied to a mixed traffic system that consists of two types of vehicle. The range of gains is also obtained by theoretical analysis. Comparisons between our method and that of Zhao and Gao are carried out, and the corresponding numerical simulation results demonstrate that the temporal behavior of traffic flow obtained using our method is better than that proposed by Zhao and Gao in mixed traffic systems.
中图分类号: (Transport processes)