原文传递
Predicting Traffic Conflicts for Expressway Diverging Areas Using Vehicle Trajectory Data
| 题名： | Predicting Traffic Conflicts for Expressway Diverging Areas Using Vehicle Trajectory Data |
| 正文语种： | 英文 |
| 作者： | Yongfeng Ma;Hongcheng Meng; Shuyan Chen; Jiguang Zhao;Shen Li;Qiaojun Xiang |
| 作者单位： | School of Transportation, Southeast Univ;HNTB Corporation;Yan'an Transportation Bureau, Dongfanghong Ave |
| 摘要： | Traffic crashes occur frequently in expressway diverging areas. The influential factors for traffic crashes in expressway diverging areas were investigated in this study using vehicle trajectory data. An hourly conflict risk index (HCRI) was introduced to develop a traffic conflict prediction model for expressway diverging areas. The data collectors were trained to identify conflict severity, and Tracker 5.0 was used to calculate the time to collision (TTC) for rear-end and lane-change conflicts, respectively. Based on the value of direct economic losses, the traffic risk index for traffic conflicts of different types and severities is established, and the severity of traffic conflict was characterized by the HCRI. A multivariate linear regression model was applied to analyze the relationship between HCRI and various influential factors. A comparison between an hourly conflict ratio (HCR) model and the HCRI model showed that the HCRI model performed better. Finally, it was found that the mainline traffic volume and the ramp traffic volume were positively associated with HCRI, while the deceleration lane length and mainline speed were negatively associated with the HCRI. |
| 出版日期： | 2020.01 |
| 出版年： | 2020 |
| 期刊名称： | Journal of Transportation Engineering |
| 卷： | Vol.146 |
| 期： | No.03 |
| 页码： | 04020003 |
相关文献
- Vehicle trajectory extraction at the exit areas of urban freeways based on a novel composite algorithms framework
- Spatiotemporal Variation of Rear-End Conflicts at Signalized Intersections under Disordered Traffic Conditions
- Research on Influencing Factors of Traffic Conflicts in Freeway Diverging Area during the Maintenance Period
- Effect of Construction Work Zone on Rear-End Conflicts by Vehicle Type under Heterogeneous Traffic Conditions
- Analyzing Factors that Influence Expressway Traffic Crashes Based on Association Rules: Using the Shaoyang-Xinhuang Section of the Shanghai-Kunming Expressway as an Example
- Grid Mapping for Road Network Abstraction and Traffic Congestion Identification Based on Probe Vehicle Data
检索历史
应用推荐
