原文传递
Expected Safety Performance of Different Freeway Merging Strategies in an Environment of Mixed Vehicle Technologies
| 题名： | Expected Safety Performance of Different Freeway Merging Strategies in an Environment of Mixed Vehicle Technologies |
| 正文语种： | eng |
| 作者： | Afshin Pakzadnia;Yasser Hassan |
| 作者单位： | Dept. of Civil and Environmental Engineering Carleton Univ. 1125 Colonel By Dr. Ottawa ON Canada K1S 5B6;Dept. of Civil and Environmental Engineering Carleton Univ. 1125 Colonel By Dr. Ottawa ON Canada K1S 5B6 |
| 摘要： | This study evaluates different proposed merging solutions that reduce the conflict between merging vehicles and mainline traffic within a mixed traffic environment using a safety measure to see which strategy might work better than others under specific traffic conditions. The mixed traffic includes various percentages of driver-operated vehicles (DVs) and connected autonomous vehicles (CAVs). The probability of noncompliance (PNC) is selected as a surrogate safety measure to assess the strategies. A MATLAB program is developed to simulate various traffic conditions at a merging area and to calculate the PNC merging for the different merging strategies. In addition, to examine the relationship between PNC and collision frequency at the merging area, the collision data at 15 merging ramps in Ottawa were collected to examine the relationship between PNC values obtained from the simulation for the case of a full-DV vehicle fleet and no management strategy (current conditions) and actual safety performance. The results confirmed the validity of PNC as a surrogate safety measure that is correlated to expected collision frequency at merge areas. By simulating all proposed merging management strategies, the results of this study showed a general trend of decreasing PNC and, hence, improved safety performance since the CAV penetration rate increases even when no management strategy is used or under the do-nothing option. However, most merging strategies had better expected safety performance than the do-nothing option, which indicates the value of implementing a merging management strategy, especially during the period of transition from a full-DV to a full-CAV fleet. |
| 出版年： | 2023 |
| 期刊名称： | Journal of Transportation Engineering |
| 卷： | 149 |
| 期： | 2 |
| 页码： | 04022143.1-04022143.11 |
相关文献
- An Optimized Trajectory Planning Method with a Flexible Insertable Gap for a V2I Connected Merging Vehicle
- Collaborativemerging strategy for freeway ramp operations in a connected and autonomous vehicles environment
- Evaluation of Motorway Lane Control Strategies for Mixed Flow of Autonomous and Human-Driven Vehicles
- Resolution strategies for cooperative vehicle fleets for reducing rear-end collision risks near recurrent freeway bottlenecks
- Optimal Differential Variable Speed Limit Control in a Connected and Autonomous Vehicle Environment for Freeway Off-Ramp Bottlenecks
- On-Ramp Merging Strategy with Two-Stage Optimization Based on Fully Proactive and Cooperative Merging of Vehicles
检索历史
应用推荐
