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Traffic Behavior at Freeway Bottlenecks
| 题名： | Traffic Behavior at Freeway Bottlenecks |
| 作者： | Coifman, B.; Kim, S. |
| 关键词： | Bottlenecks##Freeways##Driver behavior##Highway capacity##Highway ramps##Speed##Traffic congestion##Traffic control##Vehicle operations## |
| 摘要： | This study examines traffic behavior in the vicinity of a freeway bottleneck, revisiting commonly held assumptions and uncovering systematic biases that likely have distorted empirical studies of bottleneck formation, capacity drop, and the fundamental relationship (FR). This simulation-based study examines an on-ramp bottleneck using Newell's lower order car following model with a driver relaxation factor added for the vehicles that enter or are immediately behind an entering vehicle (termed 'affected vehicles'). The affected vehicles will tolerate a truncated headway for a little while after an entrance but slowly relax back to their preferred speed-spacing relationship. All other vehicles remain on their preferred speed-spacing relationship throughout. |
| 总页数： | 53 |
| 报告类型： | 科技报告 |
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