期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Three-stage approach for dynamic traffic temporal-spatial model
1
作者 陆化普 孙智源 屈闻聪 《Journal of Central South University》 SCIE EI CAS CSCD 2016年第10期2728-2734,共7页
In order to describe the characteristics of dynamic traffic flow and improve the robustness of its multiple applications, a dynamic traffic temporal-spatial model(DTTS) is established. With consideration of the tempor... In order to describe the characteristics of dynamic traffic flow and improve the robustness of its multiple applications, a dynamic traffic temporal-spatial model(DTTS) is established. With consideration of the temporal correlation, spatial correlation and historical correlation, a basic DTTS model is built. And a three-stage approach is put forward for the simplification and calibration of the basic DTTS model. Through critical sections pre-selection and critical time pre-selection, the first stage reduces the variable number of the basic DTTS model. In the second stage, variable coefficient calibration is implemented based on basic model simplification and stepwise regression analysis. Aimed at dynamic noise estimation, the characteristics of noise are summarized and an extreme learning machine is presented in the third stage. A case study based on a real-world road network in Beijing, China, is carried out to test the efficiency and applicability of proposed DTTS model and the three-stage approach. 展开更多
关键词 dynamic traffic flow temporal-spatial model big-data driven
下载PDF
Continuum modeling for two-lane traffic flow with consideration of the traffic interruption probability 被引量:2
2
作者 田川 孙棣华 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第12期51-59,共9页
Considering the effects that the probability of traffic interruption and the friction between two lanes have on the car-following behaviour, this paper establishes a new two-lane microscopic car-following model. Based... Considering the effects that the probability of traffic interruption and the friction between two lanes have on the car-following behaviour, this paper establishes a new two-lane microscopic car-following model. Based on this microscopic model, a new macroscopic model was deduced by the relevance relation of microscopic and macroscopic scale parameters for the two-lane traffic flow. Terms related to lane change are added into the continuity equations and velocity dynamic equations to investigate the lane change rate. Numerical results verify that the proposed model can be efficiently used to reflect the effect of the probability of traffic interruption on the shock, rarefaction wave and lane change behaviour on two-lane freeways. The model has also been applied in reproducing some complex traffic phenomena caused by traffic accident interruption. 展开更多
关键词 two lanes traffic interruption probability traffic flow dynamics model numerical simulation
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部