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首页> 外文会议>Coat international conference of transportation professionals >Empirical Analysis of Platoon Characteristics: Evidence from Trajectory Data at Two Freeway On-Ramp Bottlenecks
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Empirical Analysis of Platoon Characteristics: Evidence from Trajectory Data at Two Freeway On-Ramp Bottlenecks

机译：排特征的实证分析：来自两个高速公路匝道瓶颈的轨迹数据的证据

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With the flow rate increases, two or more vehicles would form platoons at freeway on-ramp bottlenecks. Based on vehicle trajectory data from I-405 and I-95 freeways in the US, this study focuses on empirical analysis of platoon characteristics from free flow to congestion flow at on-ramp bottlenecks. The platoon basic features (e.g. platoon size, platoon speed, platoon time/space headway) on freeway mainline are analyzed. Then, the platoon merging behavior at on-ramps is investigated. It is found that (1) platoon size distribution follows monotonic decreasing function; (2) Platoon time headway fits both normal distribution and lognormal distribution, and non-platoon time headway fits shifted negative exponential distribution; (3)The platoon is not necessarily moving bottleneck considering the speed difference between platoon and non-platoon vehicles under free flow condition; (4) Merging by a platoon is more invasive than that of single vehicles, and would be more disruptive as platoon size increases.
机译：随着流量的增加，两个或更多的车辆将在高速公路的匝道瓶颈处形成排。基于美国I-405和I-95高速公路的车辆轨迹数据，本研究侧重于对在匝道瓶颈处从自由流到拥堵流的排特性进行实证分析。分析了高速公路干线上的排基本特征（例如排大小，排速度，排时间/空间前进距离）。然后，研究了斜坡上的排合并行为。发现（1）排尺寸分布遵循单调递减函数; （2）排时间时空均符合正态分布和对数正态分布，非排时时间均符合偏移的负指数分布; （3）考虑到在自由流动条件下排与非排车辆之间的速度差，排不一定在移动瓶颈; （4）排的合并比单个车辆的合并更具侵入性，并且随着排大小的增加而更具破坏性。

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