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Traffic-Aware Lane Change Advance Warning System for Delay Reduction at Congested Freeway Diverge Areas
| 题名： | Traffic-Aware Lane Change Advance Warning System for Delay Reduction at Congested Freeway Diverge Areas |
| 正文语种： | eng |
| 作者： | Mehr, Goodarz;Eskandarian, Azim |
| 作者单位： | Virginia Tech Dept Mech Engn Autonomous Syst & Intelligent Machines Lab 435 Prices Fork Rd Blacksburg VA 24061 USA;Virginia Tech Mech Engn Dept 435 Prices Fork Rd Blacksburg VA 24061 USA|Virginia Tech Autonomous Syst & Intelligent Machines Lab 435 Prices Fork Rd Blacksburg VA 24061 USA |
| 关键词： | Lane change;Advance warning system;Probability estimation;Traffic simulation;Congested freeway diverge area |
| 摘要： | This paper presents an on-board advance warning system based on a probabilistic prediction model that advises vehicles approaching a freeway diverge area on when to change lanes to reach an off-ramp, with the goal of reducing delay caused by congestion at the diverge area. The prediction model estimates the probability of reaching a goal state on the road using one or multiple lane changes. This estimate is based on several traffic- and driver-related parameters such as the distribution of intervehicle headway distances and lane-changing maneuver duration. For an upcoming off-ramp, the advance warning system utilizes the prediction model to continuously calculate the probability of reaching that off-ramp and advises vehicles to change lanes when the probability drops below a certain threshold. To evaluate the impact of the proposed system on reducing traffic delay at congested freeway diverge areas, it was used in a simulation case study of a two-lane segment of the I-66 interstate highway to advise vehicles taking an off-ramp on when to change lanes. The results indicate that incorporating the proposed system can reduce the average delay by up to 83%-effectively wiping out the congestion in some cases-depending on traffic flow and the ratio of vehicles taking the off-ramp. |
| 出版年： | 2021 |
| 期刊名称： | Journal of Transportation Engineering |
| 卷： | 147 |
| 期： | 9 |
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