CAJ | 학술논문

为了更加客观地描述实际的车辆跟驰行为,在优化速度模型的基础上,通过引入横向分离参数并提出超车期望和虚拟前车的概念,建立了考虑横向分离与超车期望的车辆跟驰模型.对模型进行线性稳定性分析,得到了模型稳定性条件,发现车辆横向分离、超车期望和虚拟前车的位置的增加,在车流密度较小、车速较快的情况下,使得交通流稳定区域增大,但在车流密度较大、车速较慢的情况下,反而使得交通流稳定区域减小.数值模拟结果验证了模型稳定性分析的结果,表明在交通瓶颈处等交通流密度较大、运行缓慢的区域,为抑制交通拥堵,应该限制车辆的横向偏移和超车行为的发生.
위료경가객관지묘술실제적차량근치행위,재우화속도모형적기출상,통과인입횡향분리삼수병제출초차기망화허의전차적개념,건립료고필횡향분리여초차기망적차량근치모형.대모형진행선성은정성분석,득도료모형은정성조건,발현차량횡향분리、초차기망화허의전차적위치적증가,재차류밀도교소、차속교쾌적정황하,사득교통류은정구역증대,단재차류밀도교대、차속교만적정황하,반이사득교통류은정구역감소.수치모의결과험증료모형은정성분석적결과,표명재교통병경처등교통류밀도교대、운행완만적구역,위억제교통옹도,응해한제차량적횡향편이화초차행위적발생.
@@@@In order to depict the real car-following behaviors better, in this paper we present a new car-following model by introducing the effect parameter of lateral separation distance and proposing the concepts of overtaking expectation and virtual front car based on OV model. The stability condition of the model is obtained by using the linear stability theory. It is found that with the increase of lateral separation and overtaking expectation, the stability region of traffic flow increases at a low density while it decreases at a high density. The results of numerical simulation verify the analytic results. Thus, in some places like traffic bottlenecks, which usually have a high traffic density, it is necessary to restrict the lateral movement and overtaking behavior of vehicles for suppressing the traffic jam.